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Granny Annexes

Granny Annexes are quite popular among the homeowners who want to build a fully functional residential space in their premises, next to the main house for family members (usually, but not necessarily, elderly ones)... Read more to comfortably live in. What makes this solution greatly affordable, is that due to certain structural features, many granny annexes could be considered Planning Permission friendly. Browse through a list of our beautiful granny annexe buildings and find the one that stands out for you. Read less

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Discover classical style granny annexe ARGO M-N and enjoy minimalistic wooden aesthetics. This comfortable and practical model could provide you with a valuable space extension close to your primary residence or serve you as an all-year-round family vacation spot. Due to reliable thermal insulation, ARGO M-N is a lovely model for staying in and enjoying quality time with family and friends during any season of the year.

Important: this mobile cabin home meets all the requirements of the 1968 Caravan Act – therefore, no Planning Permission is usually required if you want to build it within the garden of your existing dwelling to be used as an extra space next to the main house. However, we highly recommend checking with the local planning department before installing it.

  • Reliable thermal insulation
  • Double-glazed windows and doors
  • A perfect residential space extension

Special Price: £31,500.00

Regular Price: £32,600.00
-£1,100.00

Let us introduce one of the latest additions to our contemporary SIPS collection, highly appreciated by customers looking for a modern and functional solution for their garden area. Discover a charming & spacious 41.5 m² insulated wooden house, offering endless possibilities for your leisure activities or transforming into a comfortable secondary living space. 

  • Efficient thermal insulation
  • An abundance of natural light
  • PVC windows and doors

£39,589.00

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A two-bedroom cabin with a cosy living room could become a perfect place of residence for a family with kids. Also, a great option for elderly grandparents, who love having their grandchildren over and comfortably spending time together, to reside next to the main house. For your utmost convenience, an insulated version of this cabin model is available as well.

Important: this mobile cabin home meets all the requirements of the 1968 Caravan Act – therefore, no Planning Permission is usually required if you want to build it within the garden of your existing dwelling to be used as an extra space next to the main house. However, we highly recommend checking with the local planning department before installing it.

  • Two-bedroom cabin
  • Large double windows
  • Contemporary vertical cladding

Special Price: £31,412.00

Regular Price: £35,358.00
-£3,946.00

One of our newest models – a charming one-bedroom granny annexe – provides lots of space to comfortably reside in. Whether you are planning to live there yourself or want your loved ones to cosily stay within easy reach, this cabin will work just great for a variety of purposes and applications. For your utmost convenience, an insulated version of this cabin model is available as well.

Important: this mobile cabin home meets all the requirements of the 1968 Caravan Act – therefore, no Planning Permission is usually required if you want to build it within the garden of your existing dwelling to be used as an extra space next to the main house. However, we highly recommend checking with the local planning department before installing it.

  • One-bedroom cabin
  • Large double windows
  • Contemporary vertical cladding

Special Price: £25,174.00

Regular Price: £30,208.00
-£5,034.00

This granny annexe model was developed having big families, who value spaciousness of their living area, in mind. It is designed to comfortably accommodate up to six people in three separate bedrooms. The cabin also features a big living room area with direct access to the garden. For your utmost convenience, an insulated version of this cabin model is available as well.

Important: this mobile cabin home meets all the requirements of the 1968 Caravan Act – therefore, no Planning Permission is usually required if you want to build it within the garden of your existing dwelling to be used as an extra space next to the main house. However, we highly recommend checking with the local planning department before installing it.

  • Three-bedroom cabin
  • Large double windows
  • Contemporary vertical cladding

Special Price: £36,428.00

Regular Price: £43,264.00
-£6,836.00
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Compact, welcoming, and cosy wooden house MAX M seems to be specifically created to become your favourite lounging space in the garden, allowing you to admire the beauty you’ve created in your surroundings. It could even transform into a temporary accommodation for your guests or family members visiting for the weekend. If properly insulated, such a house could serve as an independent living space as well. For your utmost convenience, an insulated version of this model is available as well.

Important: this mobile cabin home meets all the requirements of the 1968 Caravan Act – therefore, no Planning Permission is usually required if you want to build it within the garden of your existing dwelling to be used as an extra space next to the main house. However, we highly recommend checking with the local planning department before installing it.

  • 3 separate spaces
  • Bright and cosy
  • Insulated version available

Special Price: £11,389.00

Regular Price: £13,015.00
-£1,626.00

Discover a classical style wooden house ARGO M and enjoy minimalistic wooden aesthetics in your surroundings. This highly functional, comfortable and practical model could provide you with a valuable living space extension close to your primary residence or, if reliably thermally insulated, could serve you as an all-year-round family vacation spot. For your utmost convenience, an insulated version of this model is available as well.

Important: this mobile cabin home meets all the requirements of the 1968 Caravan Act – therefore, no Planning Permission is usually required if you want to build it within the garden of your existing dwelling to be used as an extra space next to the main house. However, we highly recommend checking with the local planning department before installing it.

  • 8 m² terrace for outdoor lounging
  • A perfect residential space extension
  • Insulated version available

Special Price: £14,788.00

Regular Price: £16,964.00
-£2,176.00

Discover a classical style wooden house ARGO M and enjoy minimalistic wooden aesthetics in your surroundings. This highly functional, comfortable and practical model could provide you with a valuable living space extension close to your primary residence or, if reliably thermally insulated, could serve you as an all-year-round family vacation spot.

Important: this mobile cabin home meets all the requirements of the 1968 Caravan Act – therefore, no Planning Permission is usually required if you want to build it within the garden of your existing dwelling to be used as an extra space next to the main house. However, we highly recommend checking with the local planning department before installing it.

  • Thermally insulated
  • 8 m² terrace for outdoor lounging
  • A perfect residential space extension

Special Price: £27,656.00

Regular Price: £31,304.00
-£3,648.00

Single-storey mobile house MEGAN M, covering 60 m² of internal space, including a charming, covered terrace, is a compact and cosy wooden solution, providing the required qualities to become one’s comfortable living space. If you want to stay warm and comfortable in this wooden beauty all year round, choosing an insulated version is a must! Conifer timber has natural insulation properties – upgrade it with an additional thermal insulation package and never look back! For your utmost convenience, an insulated version of this model is available as well.

Important: this mobile cabin home meets all the requirements of the 1968 Caravan Act – therefore, no Planning Permission is usually required if you want to build it within the garden of your existing dwelling to be used as an extra space next to the main house. However, we highly recommend checking with the local planning department before installing it.

  • Stylish 8m² covered terrace
  • 24 m² living room area
  • Insulated version available

Special Price: £25,997.00

Regular Price: £29,831.00
-£3,834.00

Has your house been feeling cramped lately? Building a living space extension in your backyard could save you a lot of hassle when you need some extra room for yourself, visiting friends or a comfortable place of residence for your family members to stay nearby. Wooden house LINCOLN M features a spacious living room area, two mid-size bedrooms, a dedicated bathroom area, and an additional compact space for storage. All you might need from a beautiful traditional style wooden house, and more! For your utmost convenience, an insulated version of this model is available as well.

Important: this mobile cabin home meets all the requirements of the 1968 Caravan Act – therefore, no Planning Permission is usually required if you want to build it within the garden of your existing dwelling to be used as an extra space next to the main house. However, we highly recommend checking with the local planning department before installing it.

  • 2 bedrooms
  • Spacious and practical
  • Insulated version available

Special Price: £30,402.00

Regular Price: £34,878.00
-£4,476.00

Our gorgeous mobile house BRIGHTON is well equipped with 2 or 3 bedrooms (depending on your internal layout arrangement), a living room, a separate kitchen, bathroom space and several additional smaller rooms which could serve you numerous purposes. Due to its vast space and superb internal layout, this house is a perfect base for large family gatherings or get-togethers with friends. For your utmost convenience, an insulated version of this model is available as well.

Important: this mobile cabin home meets all the requirements of the 1968 Caravan Act – therefore, no Planning Permission is usually required if you want to build it within the garden of your existing dwelling to be used as an extra space next to the main house. However, we highly recommend checking with the local planning department before installing it.

  • 2-3 spacious bedrooms
  • Covenient internal layout
  • Insulated version available

Special Price: £39,925.00

Regular Price: £45,812.00
-£5,887.00

Wooden house AVON with 11.5 m² covered terrace offers just the optimal amount of space for a mid-sized or larger family. If you want a spacious and comfortable family house, conveniently divided into numerous smaller spaces, definitely consider this model – it might be precisely the one for you! For your utmost convenience, an insulated version of this model is available as well.

Important: this mobile cabin home meets all the requirements of the 1968 Caravan Act – therefore, no Planning Permission is usually required if you want to build it within the garden of your existing dwelling to be used as an extra space next to the main house. However, we highly recommend checking with the local planning department before installing it.

  • 11.5 m² covered terrace
  • 2 bedrooms
  • Insulated version available

Special Price: £39,446.00

Regular Price: £45,286.00
-£5,840.00

One of our largest wooden house models – granny annexe BOSTON – could be the perfect secondary accommodation for your entire family and friends during cosy weekend stays or fun family celebrations. Due to its functionality and vast interior space, this gorgeous prefabricated building, made of natural conifer timber, have enormous potential of becoming your family’s summerhouse or even a primary living space. Spend valuable time together, surrounded by the best company, nature and fresh air. For your utmost convenience, an insulated version of this model is available as well.

Important: this mobile cabin home meets all the requirements of the 1968 Caravan Act – therefore, no Planning Permission is usually required if you want to build it within the garden of your existing dwelling to be used as an extra space next to the main house. However, we highly recommend checking with the local planning department before installing it.

  • Spacious covered terrace
  • 30 m² living room
  • Insulated version available

Special Price: £47,585.00

Regular Price: £54,619.00
-£7,034.00

Quite compact from the outside, yet amazingly spacious, fitting all the essentials inside – PREMIUM contemporary insulated garden studio room will quickly become the highlight of your day. Serving as a great place of solitude, it can become great remote office space, studio for your hobby or a gym, empowering you to work, exercise or perform any activity more efficiently and productively.


We also have this exact model available in exclusive black & white version ELON, dedicated to a famous world-renowned billionaire. This special edition contemporary structure has been developed for modern and minimalistic style admirers, who appreciate unique & exclusive things in their life.

  • Firestone® EPDM roof covering
  • PVC windows and doors
  • Bright, warm and spacious

Special Price: £26,601.00

Regular Price: £26,854.00
-£253.00
A cosy and stylish insulated PREMIUM garden room works as a great base for creating a lovely bureau, workshop, home gym or art studio. Due to large PVC windows and doors paired with the insulation of the SIPs panels, this garden room is not only exceptionally bright and modern but also provides extremely high thermal insulation properties.
  • Firestone® EPDM roof covering
  • Separate bedroom space
  • Bright, warm and spacious

Special Price: £25,313.00

Regular Price: £25,554.00
-£241.00
Want to explore sustainable living like a billionaire? Mansions and castles are so outdated – get back to basics in style! Enjoy your contemporary, budget-friendly, and sustainable all-year-round residence like the wealthiest of the world do! The latest addition to our prefabricated building collection - ELON - could instantly kickstart you to a more minimalistic way of living. Relatively compact from the outside yet amazingly spacious, fitting all the essentials inside, this modern residence will become a valuable highlight of your daily life. Serving as a great place of solitude, ELON can be used as your main living space or an excellent remote office, studio for your hobby or a gym, empowering you to work, exercise or perform any activity more efficiently and productively.
  • Stylish and minimalistic
  • PVC windows and doors
  • Bright, warm and spacious

Special Price: £27,899.00

Regular Price: £28,152.00
-£253.00
Thinking about a bespoke project? We can help!

Provide us with details about it. We'll be happy to help!

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