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Granny Annexe exterior options. What style would you go for?

The exterior style of your new annexe can have a large impact on how the building will look in its surroundings. We offer our customers one of the largest choices for how the exterior of your new home will look. Options are available for cladding in red cedar wood, cedral cladding, painted pine, stained wood and painted render of any colour, with or without brick quoins.


Other factors that can determine the look of an annexe include what colour window and door frames you use, whether or not you decide on French doors or bi-fold doors and what style of roof line you choose.


All of the annexes we build come as standard with UPVC window and door frames in a choice of colours. Some of the most popular colour options are dark grey, oak effect, white or black. Window frames can have a large effect on a building. Darker greys and blacks help to make a building look more modern and contemporary, while white windows are usually more traditional. We are also able to offer the option to upgrade to aluminium frames, which some people tend to prefer.

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Roof options help to change the exterior look of an annexe and also can have a dramatic impact on how the building feels inside. Vaulted pitched roofs can help create a great feeling of space, especially with the inclusion of Velux roof lights. Pitched rooves are our most popular option compared to flat-roofed buildings with many people preferring how this looks from the outside.

Pitched rooves help to create a cottage look, creating a real home in the garden. Another popular option is our L-Shaped layout that incorporates 2 pitches. Being a more complex design, not a lot of our competitors offer this style of design but it can be worth the extra costs involved. The L-Shape works extremely well for an annexe, as it fits into most garden spaces, and help to incorporate a bit more space into the bedroom or living room. It can also add to the look of the annexe giving some additional interest to the appearance of the building.


Above is an example of red cedar wood cladding on our popular L-shaped Islay annexe. Red cedar Canadian cladding is a durable softwood. Due to the cooler temperatures, Canadian cedar is grown very slowly compared to UK cedar. This means the wood is naturally very durable and resistant to any weather conditions. It also looks great and ages well. Some maintenance is advised to keep it looking at its best and it can benefit from regular treatment with wood oil.

White render and brick quoins with an L-Shaped layout (as shown above) helps to create a very attractive building, that suits many of our customer’s gardens perfectly. Terracotta tiles compliment the cottage feel, together with the brick quoins. Wood effect bi-fold doors add to the homely feel, while also bringing in plenty of light and giving uninterrupted views of the garden.


Another popular option for cladding material is a traditional looking stained wood. Stained wood suits the local architecture in many areas of the UK, such as Kent and East Anglia, where black stained homes and agricultural buildings are a common sight. Choosing an exterior design that compliments the local architecture is something that will certainly help with planning permission and will help create a building that suits its local environment.

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Above is an example of a different style that can be achieved with a pitched roof. By turning the annexe so the gable end is facing the garden, the exterior design achieves a whole new look. A glazed gable end is great for bringing in plenty of light and creates an annexe with a wow factor with its floor to ceiling glazed end. Red cedar cladding was used on this particular project, but all of our styles of buildings can be clad in your choice of cladding or render.

Bi-folds, french doors and windows

We offer customers a choice of glazing that can transfer the look of your annexe and create a variety of looks. Modern contemporary buildings tend to use more glazed areas now than in the past, especially with modern glazing being so thermally efficient.


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Bi-fold doors are a great way of bringing in plenty of light into your building. They have the advantage of being able to open fully during the summer in order to connect the garden with your annexe.

French doors can bring a similar advantage but do not open to the same width, for some people however this might be enough. Plenty of light can still be achieved through having extra width glazing either sides of the french doors.


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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.