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Granny Annexe

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Exploring our ‘Islay’ range of Granny Annexes – one of our most popular designs

Granny Annexe build a great range of properties providing bespoke solutions to each of our customer’s needs. One of our most popular designs is the ‘Islay‘ range, with its L-Shaped layout and spacious proportions it has proved an extremely desirable option for our customers.

granny annex planning

Above shows a typical floor plan of one of our ‘Islays’. The L-Shape layout allows plenty of room for a spacious open plan living room/kitchen diner with an en-suite bathroom leading off from the double bedroom. A walk-in cupboard provides generous storage options helping to create an uncluttered and well-organised living space.


Islay granny annexe


The choice to build an annexe is a big decision and we are here to make the process as easy and stress-free as possible. After a free site survey, we will be able to help decide which layout, exterior features and interior finishes would work best for you. With the Islay, it is possible to choose from a range of options. A key feature of all our buildings is creating a light-filled living space. Bi-folding or French doors help facilitate this providing great access to the garden, brilliant views and allowing plenty of light to flood in.




Once the site survey is completed we will create for you a 3-D drawing of your new property so you can visualise how the building will look in-situ. This is a great way to provide a feeling for your new home and to understand how the final design will work in your garden. We will then draw up a floor plan and garden aspect plan so that you can see where everything is going.

Once you have decided on the layout and design of your building it is time for the fun bit of choosing your interior and exterior options. We have a list of options available for the Islay range.


  • Roof options – including a Sedum roof, Tiles and EPDM
  • Render colour options 
  • External walls and facias
  • Doors – bi-fold, French doors and single doors
  • Windows – top hung aluminium, casement and fixed frame
  • Lighting – directional, wall lights and pendant lighting
  • Laminate flooring options


Our options help to create a stylish and modern living space, using very high-quality materials and fittings allowing for a great choice for the look and feel of your new home.


Lowe view bathroom


The Islay comes with an en-suite bathroom that offers a great level of convenience with every room thoughtfully positioned. Our Islay bathrooms come as standard with a W/C and wash basin, a vanity unit with a splash back and mirror positioned above. Our showers come with a choice of aqua panels and a chrome-edged sliding shower door or fixed panel shower screen.


  • W/C and wash basin
  • Vanity unit with a splash back and mirror
  • Showers with a choice of aqua panels
  • Chrome-edged sliding shower door or fixed panel 



Lowe kitchen 2


Kitchens in the Islay usually work best as part of an open plan living area. This maximises the space available and creates a capacious multifunctional area. All our kitchens come complete with high-end appliances from AEG, a variety of appliances, worktops, sinks and cabinet colours.


  • Variety of floor and wall level units
  • Laminate worktops
  • Water heater
  • Sink and taps
  • Appliances including Lamona and AEG products


Each of our ‘Islays’ is a starting point from which our customers are able to create their personalised and unique home. We are always here to discuss the variety of options that are available and with over 10 years experience in building homes for our customers, we are in a great position to offer you our expertise. Granny Annexe is a customer focused company and understands the needs for a granny annexe are various and often very personal, that is why we encourage you to phone us if you have any questions as we always keen to help.


While it’s fresh in your mind why not download a free brochure

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granny annexe brochure









Getting the best views from you Granny Annexe. How to make the most of your garden and location.

One consistent feature of the properties we build is the care and attention our customers put into their gardens. One of the great things about an annexe is that they can truly take advantage of their surroundings being almost always built within the grounds or garden of an existing property. Our annexes are always built with this in mind and feature large bi-folding doors or french doors in order to provide a great view of the garden and to let in as much light as possible.


cottage white renderjpg


Many of our customers are keen gardeners and this is reflected in the requests we get when creating their new building’s design. Some of the best ways to make the most of a garden location is obviously to create as many ways as possible to enjoy it, be that from inside through large windows, or from outside on a large decked area or patio.




With this fantastic weather we have been having recently, many of our thoughts turn to how to enjoy the garden more. Our buildings are a perfect place to host a bbq or garden party. All our granny annexes come complete with a bespoke kitchen, meaning that its super easy put on a great family bbq for friends and family. We are able to offer our customers the optional extra of having us landscape your garden, build a terraced area or patio, or even to create an outdoor cooking area.

After a free site survey, we will be in the perfect position to advise you and go through all the options you have available to create the perfect outdoor space that connects your garden to your new home.




Tips for your garden :

In this hot weather, it can be difficult to keep everything in great condition. One of the challenges we face is keeping our garden and lawn watered when we are experiencing a heat wave like we are currently. We can make sure that environmental considerations such as a water butt are installed so that all rainwater is collected from your annexe. This water can then be re-used on your lawn and garden when the weather is hot. Another great way to save water is to re-use water you have used for washing up, instead of throwing this water away, consider using it in the garden instead. With our buildings being so closely incorporated into the garden it is easy to get into an environmental mindset and to start putting some of these ideas into use.


Granny Annexe


If you are less mobile or not as green-thumbed as you would like, then there are plenty of other options available to create some greenery and enjoy your garden. Creating some colourful potted flower displays is a great way to add colour and to give you some great views. Potted plants are much easier to look after than a garden, and might only require watering once a day in the summer. Also, you do not have to worry about maintaining a lawn, in the example above a great little terrace area gives a view of the garden and allows easy access between the two.


Western Red Cedar exterior


We are well known for building a great range of annexes for our customers, many of our more traditional designs are very popular, but we are also very happy to design and build more modern and contemporary buildings. Sometimes a modern design can work better in the surroundings, depending on your location and garden. Here a flat-roofed design, dark grey folding doors and cedar cladding create a minimal and exciting combination with the garden. The terraced area has been created with contrasting silver larch, that really helps to settle the building into its surroundings, and of course to provide a wonderful area from which to enjoy the garden.


While it’s fresh in your mind why not download a free Granny Annexe brochure

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granny annexe brochure









Granny Annexe case study – See one of our completed projects built for a customer in Essex

At Granny Annexe we are always very proud to show off any new projects we have recently completed. This fabulous property, built for a customer in Essex is one we are delighted with and showcases some of the design options and fittings we can offer.

The customer contacted us as they were committed to building a home for their elderly mother. This was seen as the best alternative to a retirement village, allowing for care to be provided from home, while still offering independence and dignity.

This size of the building allows for a spacious and comfortable layout and is one of our most popular designs. With an L-shaped footprint and 8.00m x 4.75m there was plenty of space for a large double bedroom, open plan living room and bathroom with a capacious walk-in shower. Another priority of this building was to provide a  comfortable home that is all on one floor to help make moving between rooms as easy as possible. This is one reason why annexes are so perfect as accommodation for elderly relatives, who might have previously been struggling in a house with stairs, or who have relinquished the use of upstairs altogether.


lowe floor plan


This new home benefited from a number of design options that have helped to create an airy and light building for its new owners. Large French doors allow for easy access to the main living area and also provide plenty of light and a great view of the garden. As mobility is an important consideration, it is possible at a later date to add a ramp to the steps leading up to the entrance.


timber clad annexe


We can offer a number of exterior finishes to the homes that we build, giving our customers great control over how the building will look. Timber cladding is a practical and increasingly popular option and really suits the style of this type of building. Black cladding can be popular in many parts of England, with black-clad timber barns a common site in the east of England, so this helped to create a new building that sympathetically suited its local environment.




Granny Annexe are also available to provide a range of optional landscaping services, including decking areas, patios and general landscaping. This all adds to the usability of your annexe allowing you to enjoy the garden and annexe from day one. We will be able to advise you on the best way to maximize the use of your annexe and garden and discuss how landscaping can help you to create the perfect annexe surroundings.


lowe render


However, we don’t just build the skin of your building and leave you to do the rest. We provide a complete turnkey service including all decorating, fittings and fixtures and of course, a beautiful kitchen. All of our kitchens come with quality appliances from AEG, including ceramic hob & splash back, multifunction oven and integrated fridge and dishwasher. It is possible to choose from a range of kitchen doors and worktops, sinks and lighting. We can help you every step of the way to design your perfect kitchen.



Lowe kitchen 2

Flooring options are also possible, here our customer chose laminate oak wood flooring which gives a modern and luxurious feel to the kitchen, white kitchen units add to the prestige feel, creating a kitchen space anyone would be proud of.


Lowe view bathroom


Our buildings provide a great deal of convenience for our customers, en-suite bathrooms with walk-in showers are a popular option, providing great comfort, stylish design and easy access. Different tiling options are available, the above photo illustrates our standard white tiles adding a light and contemporary feel.


While it’s fresh in your mind why not download a free Granny Annexe brochure

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granny annexe brochure




Are Granny Annexes an answer to the care crisis?

Can the answer to the elderly care crisis be a granny annexe in the garden? A growing number of people believe it is with the numbers being built surging in the last few years.

  • Increase in families choosing an annexe over more expensive care home options
  • The number of annexes built in UK has increased by 50% in last 4 years
  • Research shows life quality is much improved when families stay close together

granny annexe cottage in garden

When we look back at many of our past projects one of the key requirements for building a granny annexe in the garden is to provide an independent living solution that also allows for the added security of having family close by. Families can provide help if necessary and can also benefit from the extra support from grandparents for babysitting etc. When we build a home in the garden, we always pay close attention to the requirements of the whole family and take great strides in order to get everything just right.

Kitchen Lounge granny annexe

David and Jen, who we built a property for in Perthshire, were kind enough to take part in a short interview to talk about the reasons they decided to move into their new home. Having moved from South Africa, they found that they were spending a lot of their time looking after their grandchildren at their daughter’s house, while still living at their flat. For them, it made a great deal of sense to pool together their resources and move into an annexe so they could be close to family and spend more time together.

For David and Jen, their new home is a dream come true, its light, airy,  clean and perfect for their needs. It has changed their lives in a number of ways. Being so close to their grandchildren means that they now see each other a lot more, their other children are also able to visit more often, and David and Jen no longer need to travel long distances each week. They chose a traditional white render for their building and large folding doors to provide ample light and to give them a great view of their garden to enjoy watching the grandchildren play.

Granny Annexe, Basildon

The desire to keep hold of an independent style of living and the ever-increasing cost of care homes means that annexes have become a very popular option for families. Many families have turned to them as an alternative to care home costs. Not only are they relatively low cost to construct, but they also add extra value to the home whose garden they are built in.  They are thought to add at least 10% to the value of the main house. Also, they needn’t just be for the elderly, many of our buildings are now being built for the younger generation who might not be able to afford their own place or built as extra accommodation, possibly for Airbnb rental, au-pairs, or just as a spare room. This variation of use indicates why they are a top-selling feature for many new homebuyers.

Luton Exterior

How to care for a rapidly ageing population is one of the most pressing issues that our country faces and maximizing the use of people’s gardens to help support and care for elderly relatives is an idea that is really catching on. Of course in some circumstances moving to a care home might become a necessity, but the majority of elderly people wish to maintain their independence for as long as possible.

The cost of building an annexe is relatively lower than a lot of other building work. This is due, in part, to the fact that land is already obtained and the methods used for construction. We use SIP panels, which mean they are structurally very strong and insulated, while also being fast to erect and lower cost than brick building methods.

granny annexe with kitchen

At Granny Annexe we pride ourselves on the fact that we are able to create a bespoke solution for our customer’s needs. We build properties that are a number of sizes, looks and layouts, as all our customers have their own unique requirements. This recently constructed building in Surrey shows how our designs vary, with a more modern cedar cladding and grey framed windows, it provides a chic and comfortable home for its new owner. With an external area of 51.96m2 there is plenty of space and large folding doors bring in plenty of light.

Whatever your requirements we are always here to discuss your ideas and to help you with your decision. With over 10 years experience building for our customers are very happy to answer any questions you might have. We hope that we can help provide a solution to your families housing needs, and bring your family closer together.

While it’s fresh in your mind why not download a free brochure

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granny annexe brochure

How to increase your living space by constructing a garden annexe

Download a free Granny Annexe brochure

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granny annexe brochure

Living space in our homes is currently at breaking point. Many families would like to move up the property ladder and buy a larger home, but with the cost of housing soaring, that is not always a possibility. Sometimes circumstances mean that a family needs to find extra space, whether they can afford to or not.

A knock on effect of current house prices is that the younger generation might not be able to afford a deposit and get their foot on the first rung of the property ladder, or elderly parents might not have enough equity in their own property to afford to downsize.

That is when building an annexe in the garden might be an affordable solution to help with the increase in demand for family living space. Whether for the older or the younger generation, a garden building can provide an ideal mix of proximity to the main family home, combined with an element of independence that helps to make multigenerational living a success.


major 3

What is an Annexe?

By definition, it is a separate building designed for living in that is associated with the main building. It, therefore, offers an element of independent living, while retaining a close link to the family home. This creates the perfect elements for multi-generational living, where a combination of independence and security are sought after.

Is planning permission required?

You generally need planning permission for any habitable building, whereas for a summerhouse, garden office or gym it might not be necessary. Simply put, if it is going to be slept in it will probably require planning permission. Before choosing your design it is wise to consider the local environment, whether or not you live in a conservation area and if your building is listed. These factors might affect the style of annexe you are allowed to build. All of these factors are worth considering and something that we would be very happy to assist you with and discuss in more detail.

Case study

Major 1

We recently constructed this fabulous building in Basildon. with an external area of 8m x 5m and a pitched roof, it is one of our larger annexes, in the Arran range.

Bright, airy and spacious

A common request we receive when designing a new building for our customers is that they would like to create a light and airy space to live in. Our annexes always fit this bill. With the use of a pitched roof, Velux skylights bring in light from above and help to further enhance the feeling of space. Bi-folding or French doors are also a popular choice meaning that light floods into the main living area. In summer the doors can be thrown open so that the garden is enjoyed to it’s fullest. A variety of window styles are possible, with a choice of frames in different colours in order to create your perfect look.

Cottage appeal

Our cottage style ‘Islay’  is our most popular design. Often our customers are looking for a traditional finish to their home with white render and brick quoins. This design looks at home in an English country garden and sets our buildings apart from some of the other products on the market. We also offer more contemporary and modern options, such as cedar cladding, or white render with dark grey door and window frames. We are always happy to discuss your design and find the perfect look to meet your requirements. Other features that can add to the look and usability of your building include a decked terraced area. This is a great way to connect the building with the garden and allow you to enjoy the garden and annexe even more.

cottage white render imagejpg

Fittings and fixtures

We will build and decorate your home so that it is ready to move into once we hand you the keys. Our team of professional tradesmen will fit your kitchen, install the bathroom and install all the electrics. We will discuss with you where you want each fitting so that it is perfect for when you move in. The prices of our annexes are all-inclusive, including, foundations, drainage, all kitchen fittings, a walk in shower or bath, bathroom fittings, electrical points, wiring and plumbing.

Wilson Images_6

Warm and cosy

Your comfort is our priority. That is why we use the best thermally insulating building methods to create a warm, weather tight and insulated building that is affordable to heat in the winter. In order to do this, we use Structurally Insulated Panels (SIPs) for the construction of your building. Our SIPs have a great insulation rating, falling well within UK Government limits. Our U-values are within the upper limits, contributing to the energy efficiency of the building. This also means that our buildings are quick to construct allowing for a build time of 5-7 weeks.

Luton Exterior

Turnkey service

When we build a project for our customers we take care of everything, from design to building and decorating, installing the kitchen and bathroom and handing you the keys, we have it covered. Of course, your input is very important to us and we always consult you throughout the process, but you can relax in the certainty that everything is being managed for you. Our team of professional craftsmen take great pride in the high standards of finish we guarantee for our customers, with beautifully laid laminate or engineered wooden floors, plastered and painted walls, electrical fittings and skirtings, our service is always completed to the best industry standards.

Granny annexe Flat Roof Interior

While it’s fresh in your mind why not download a free brochure

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granny annexe brochure








A tour of our brochure. How to get started with your new Granny Annexe.

Download a free brochure

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granny annexe brochure

Often the first step our customers take when having a new annexe built is to request a free brochure, either in PDF or print form.

Our brochure offers our customers the chance to get a good feeling for the process that is involved in creating their new home.


It is possible to download a PDF version of our brochure from here.

Download PDF Brochure


Or if you prefer you may request a print version and have the brochure sent directly to your door.

Request brochure by post


What is included in our brochure?

We describe to you how we build our annexes for our customers, first and foremost our aim is to build a home that is perfect for your requirements. To do this we offer all our customers a free (subject to location) site survey.

During the site survey, we can advise you on which building would work best for you. We can also discuss options such as cladding, window frames, the size of your building, access, bathrooms and kitchen options, to name a few.

We also offer our customers a number of optional upgrades, including ramps, rails, shower wet rooms and engineered oak floors.

After we have conducted a site survey – we will produce initial designs, including an exterior 3D visual so that you can picture how the building will look. A floor plan and garden aspect plan, so you can see where everything will go and an itemised quotation, so you can see the exact price of your new granny annexe.

When you book a site survey you can take advantage of our free design and quotation service.




What happens next?

You will have 3 opportunities to amend your quote free of change and will also have the option to visit one of our recently completed Granny Annexes.

Once you are happy to continue, building work can start, with a typical build time lasting 5 – 7 weeks.

Week 1 – 2

Heavy work begins. This includes all the groundwork, installing the foundations and drainage to the base of your annexe.

Week 3 – 4

The building shell is constructed. During this process, we will undertake the initial electrics and plumbing and then complete the plastering.

Week 5

We add the core elements of your interior, transforming it into your new home. Kitchens are fitted, flooring is laid throughout and the skirting boards are installed by our carpenters.

Week 7

Final decorations are completed, your new annexe is cleaned top to bottom and you are handed the keys to your new home.

At the end of every build your new property is inspected by government approved building inspectors and for your peace of mind, we are also able to offer a 10-year insurance backed guarantee.

cottage white render imagejpg

While it is still fresh in your mind, book a no obligation site survey.

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Granny Annexe Inspiration. 9 great styles to suit any garden.

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With over 10 years experience building garden buildings in the UK we have a wealth of inspiration for construction ideas. Together with our customers we have designed and built some wonderful projects which we are delighted to share with you, and possibly inspire you to build your new annexe.

Spring/Summer is the perfect time for building, as the weather allows us to make great progress. A typical build time is 5 – 7 weeks, which means you could be enjoying the delights of your new property much sooner than you might think.

Our buildings can come in many different shapes and sizes, with vaulted roofs, or flat roofs, wood cladding or traditional render, bi-fold windows or French doors, the options allow for a great range of different designs.

Weaver Granny Annexe Exterior 2

This 1 bedroom property built with traditional white render and brick cornerstones is one of our most popular designs. The L-shape layout allows for a spacious feel, with a lounge, fitted kitchen and an ensuite bathroom with a double shower. What stands out most about this beautiful property is the amount of light and airiness achieved in each room, despite it being one of our smaller builds.

granny annexe lounge

The owner of ‘Weaver Annexe’ has decorated it with white walls, accented with colourful furniture. This works great and gives the living room a spacious feel but still retains a cosy atmosphere.


cottage white render imagejpg

This bigger property shows what can be achieved with a similar layout but slightly larger folding doors. Lighter window frames can add to the feeling of spaciousness.



Here is another L-shaped building, but with a different orientation. This design is perfect for when the garden is more narrow, but still provides a roomy feel. A slightly raised position has also allowed for a stunning decked terrace that overlooks the garden. Great for spending a sunny afternoon relaxing, or the perfect spot for a BBQ.

cottage white renderjpg

This very spacious 66m2 home in Cambridgeshire has a double bedroom, with a large bathroom and roomy dining room and lounge area. The large decking area can be reached via a ramp for easy access, perfect for enjoying the sun on a warm day. Velux skylights have been added to the roof to bring in further light, complimenting the large French doors.

A traditional feel has been created with the white render and light oak PVCu doors and windows. The price of the build also included groundwork and the removal of some tree stumps, as well as all electrics and plumbing.


natural cedarjpg

Red cedar cladding is a popular option for many of our customers and it creates a clean contemporary feel to the exterior. Not all of our buildings are destined for the older generation, this stunning home was built for a daughter who wanted to live independently, but elude the high costs of buying a flat on her own. As a budding artist, the annexe was built with light and space a priority. To facilitate this we created a pitched roof, with ample glazing and floor to ceiling windows. Dark grey window frames added to the modern feel, to create a stylish and chic living space.

annexe bedroom

An artistic touch sets off this stunning bedroom perfectly with white walls and colourful furnishings.


tiree render and brickjpg

Sometimes a building just looks perfect in its surroundings. This long 1 bedroom ‘Arran’ compliments it’s beautiful garden, both are a real asset to the owners and shows how well our buildings can fit into a garden.


vaulted cedarjpg

Vaulted ceilings can be used to great effect for bringing in light, especially when the gable end is glazed to the ceiling. This fantastic home built in South London is incredibly bright and airy, a real retreat from the hurly-burly of London. At 45m2, ample space is allowed for a modern open plan kitchen/lounge, double bedroom and walk-in cupboard and bathroom.


A feeling of space was high on this customer’s wish-list and this is provided in spades with the use of floor to ceiling windows. A modern white kitchen compliments the rest of the decor.



Flat roofs can also be a popular choice for some of our customers. Modern materials mean that the old days of a leaking flat roof are gone, just enjoy a warm, comfortable and well-insulated building. Flat roofs are increasingly popular for those after a more contemporary look, especially when paired with cedar cladding and dark grey window frames. This home features an especially large single pane of high performing insulated glass, perfect for making the most of your garden and for bringing ample light into the living space.


islay render and brick frontjpg

This new home was perfectly formed to meet the requirements of our customer. Our ever-popular ‘Islay’ includes a lounge/kitchen area, 1 bedroom and a fitted bathroom with an external area of around 34m2. This can help offer a traditional look and feel, with white render and brickwork, while still allowing light to flood in with its wide French doors and glazing. A small decking area means that a coffee can be enjoyed on the terrace overlooking the garden.


While it is still fresh in your mind, book a no obligation site survey.

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First the granny annexe, then the graddy annexe!

Many people in their retirement see building a granny annexe as a great way to release equity and to move somewhere more manageable, without the soaring costs of moving home and downsizing into a flat or bungalow.

graddy annexe

These buildings can be a great way to create extra space, making use of a patch of garden and turning it into somewhere fantastic to live.

But increasingly it is not just the older generation who are turning to annexe living as a solution to their housing needs. According to the NUS over half of all students who paid full tuition fees in 2015 are back living with their parents.

The number of houses with a separate dwelling has jumped by a third since 2015. This increase can be put down to the various benefits they can bring to a property and the increase in value from increasing a property’s living space.

graddy annex interior

The benefits that older generations enjoy from annexe living are equally advantageous to boomerang children returning from university. The attraction of living close to home with the possibility to save money for a mortgage has lead to the granny annexe morphing into the so-called ‘graddy annexe’. There has been a reported 20% growth in people inquiring about these sorts of buildings for the younger generation and this number is set to rise as younger people find it more difficult to afford a deposit.

In 2018 a typical 1 bedroom flat in London can be as much as £500,000, a staggering amount that most recent graduates would not be able to afford for many years, especially if already lumbered with student loans. A one bedroom garden building can be built from £50,162 including bathroom, open plan living room and kitchen/dinner. Once graduates finally leave the comforts of home the garden building is often recommissioned as a guest room, garden office, music studio, or an annexe for the older generation.

graddy annex planning

Due to a huge growth in property prices in the south of England, many ‘graddy annexes’ are being built in southern areas such as London, Surrey and the home counties. Building these type of properties can be seen as an investment from both parties involved, allowing the younger generation to save for a deposit while allowing the property owner to add extra value to their home. These buildings also allow for a level of independence that is welcome for both parties, they have their own access to the property and do not get under each other’s feet, but it’s still pleasant to be close for family occasions.

When deciding to build an annexe in the garden it is important to think how the building will be used in the future. When designing a home for a younger family member it is wise to consider how the property will be used after they have left, and who might be the next inhabitants.

A garden home is a great way to keep families together and offers an excellent solution to the increasingly tricky housing market, be it for the older generation downsizing or the younger generation saving for a deposit.

At we are always happy to discuss whatever ideas you have for your new project, just drop us a call free on 0800 334 5774 and we can talk you through the options available.

While it is still fresh in your mind, book a no obligation site survey.

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Why a Granny Annexe could be a great option for you and your family.

A brand new home in your garden could open space that was before barely used. For the fraction of the price of a similar sized flat, you could have a spacious one or two bedroom annexe, built and decorated within 5-7 weeks.

Choosing your new granny annexe design is an exciting process and one that comes with many possibilities.

When thinking about building a property in the garden, it is important to sit down with your family and discuss what are your main criteria. How much space will you need? How large is your garden? How will your new building work in its surroundings?

We offer a range of solutions to meet our customer’s needs. Each new annexe we build is unique and designed to complement perfectly our customer’s requirements and the surrounding area it is built.

One of our most popular designs ‘Islay‘ offers great scope for building a home that suits the needs of our clientele.

granny annex planning

The Islay can be traditional in appearance with brick built cornerstones and clean rendered walls, this is a look that has proven very popular as it meets the criteria of many of our customers. It suits the surroundings of most gardens and can be designed to match the look of the main house. The Islay offers plenty of room, with a separate bedroom, bathroom and kitchen dinner/living room. The cost of the Islay starts from £72,475.08 including VAT.



For some of our customers building a garden home is a chance to design something more modern, new trends mean that options such as red cedar cladding are increasingly popular. Cladding performs well in all weather and will provide great protection for your building. It also creates a more modern look, especially when paired with darker grey window frames and doors.


Granny Annexe Cambridge

This building pictured above we built for our customer also makes the most of its surroundings through the use of its extra wide windows and bi-folding doors. A beautiful garden can be appreciated from inside this property all year round. It’s amazing the difference that large windows can make to the sense of light and space, adding to the more modern design.


How much does a granny annexe cost?

With house prices now 7.6 times higher than the average annual salary (double the amount compared with 20 years ago) multigenerational living is becoming hugely popular. It offers an alternative to downsizing, that is both less risky in the current economic climate and will certainly increase the value of any home. Our buildings are thought to add more value to the property than the cost of building the annexe, with many people searching for houses with additional living space.

Our garden homes start from as little as £55,162.85, built & decorated with kitchen, bathroom & lounge-diner. The average cost of just moving house in 2017 was £8451.49 add to this the average UK property price of £218,225, then it is apparent the massive savings that can be made.

Many of our most impressive annexes have been custom builds that were designed to meet unique requirements, we love to hear your ideas and turn them into reality.

Customising the look of your new home might also be needed to meet planning regulations, some conservation areas will require a certain type of window, cladding, tile or finish to be used, which is something to consider carefully in the design process.

Care home costs vs a granny annexe

Another consideration for some families is the cost of care homes compared to the option of building a garden home. Care home costs are extremely high in England. With current laws, the cutoff point for when people are responsible for paying for their care home charges is £23,250. If your income or capital is above this figure then it could be likely that you will pay for your care home costs. Weekly cost of care homes can vary and currently range from £250 per week to well over £1000. A 20% premium can be added when nursing care is needed.

The location will also have an effect, with care homes in the South East of England costing typically more. For a more in-depth analysis of care home costs try visiting a specialist website such as

When nursing care is less of a consideration then many people prefer the option of keeping the family closer together. A granny annexe can provide a great solution to soaring care home costs. Families like the idea that a level of independence is maintained, while still offering assistance closeby if necessary. Also, grandparents get to share in family life, often providing some level of childcare for grandchildren, often creating a win-win situation for many families.

Why choose ?

garden annex

Unlike many garden home builders, we have years of experience behind us. Our objective is to provide a perfect solution for your family and we are willing to go the extra mile to do so. We offer a free (postcode specific) no-obligation site survey at your home. During this process, we can talk to you about your requirements in detail and assess how suitable your garden will be for different designs. We also provide a full planning service to deal with any planning permission or building regulation questions.

While it is still fresh in your mind, book a no obligation site survey.

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5 great ways to make the most of your garden and annexe in spring.

When we build a property in one of our customer’s gardens we are always aware of how important it is that the two work perfectly together. A granny annexe is more than just a building, it becomes an integral part of the garden and therefore they are designed to work in perfect union. Upon doing a site survey one of the first things we do is to look at the environment in which the building will sit and then plan a design that will complement its surroundings.

Granny Annexe

Now the weather is starting to hot up let’s look at some of the great ways you can enjoy the garden and your new building!

  • 1. Bring the garden inside.

Now with modern glazing and window options, it is easier than ever to bring a sense of light and outdoor space into your home. With double and triple glazed options, doors and windows can be very large, with bi-folding and French doors ever popular. What could be better on a warm spring day than throwing open the doors and enjoying the garden?

bi-folding doors in garden annexe

  • 2. Furniture that can be used to transform your outdoor space.

Outdoor furniture comes in all shapes and sizes, from loungers to hammocks to swinging chairs, there are plenty of options to make your garden a comfy and relaxing space to be. Garden furniture can be designed to fit in with your garden home design, perhaps matching the cladding or other design features.

A hammock can be a great way to add a fun and useful lounging option for when all you want to do is lie back and relax with a cool drink. Hammocks are increasingly becoming a popular option and can be utilized indoors when the weather is bad.

Hammock hung in granny annexe

  • 3. Outdoor / indoor cooking.

Cooking outdoors on a bbq is always a great way to make the most out of a hot day and modern BBQs don’t have to be a messy experience, these days gas BBQs offer a cleaner and safer alternative to BBQing on charcoal. Having a garden annexe with great connection to the outdoors and a terrace, decking or patio area can help you make the most of cooking outside. Another option if you want a taste of the Mediterranean is building or buying an outdoor pizza oven. Delight your family with home cooked pizza and your annexe will be the hub of every social occasion.

annexe decking area

  • 4. Lawn or landscape?

A lawn can be a real treat when the weather is hotter, but sometimes it can be a lot of hard work to keep a lawn looking good and mowed regularly. Other options are available, gardens can still look great with stone slabs, meandering paths, great use of foliage and pot plants and tasteful garden ornaments. If a lawn is a must for you but you don’t want the task of maintaining it, why not try an artificial lawn. They have come a long way from the bright green eyesores of old, and now are hard to distinguish from the real thing.

Granny annexe interior

  • 5. Clever planting

Planting can have a great effect on your garden. Clever planting can connect an indoor space to the outdoors through drawing the eye into the garden. Be careful if you have a small garden not to plant something that dominates the area, smaller pot plants can be arranged to create interesting zones while some pot plants can be positioned nearer the annexe bringing greenery into your indoor space and connecting the two.

Granny Annexe


While it is still fresh in your mind, book a no obligation site survey.

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Contact the Granny Annexe Helpdesk with all your questions. We're open from 9am to 5pm Monday - Friday. Call us free on 0800 334 5774 or Email us.