Call Free: 0800 334 5774
Call Free: 0800 334 5774


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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