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Garden annexe granny annexe
AMC Garden Annexes /
Make your garden room a home

Individually designed homes for the garden, handmade in the UK


An AMC Garden Annexe is the perfect way to create extra living space in your home without the disruption and expense of a house extension.  Our garden annexes are self-contained homes, and come complete with a comfortable lounge, one or two bedrooms, a fully-fitted kitchen, a shower room and storage space.  They are 100% compliant with all aspects of building regulations and make a cost-effective, attractive and practical addition to your home.


Whether you're looking for a granny annexe for an elderly relative - or separate living space for a younger member of the family keen to gain some independence - our garden annexes are designed and built to make your loved ones feel special  (and they add significant financial value to your home too).

Every garden annexe we install is unique.  Our designers will work with you to create the perfect interior layout and to make sure that the annexe suits the space available in your garden.  The rooms are handbuilt at our workshop in Cambridgeshire with only the best quality materials and come with a comprehensive six-year guarantee for peace of mind.  We also manage all aspects of the project from beginning to end – that includes handling the planning and building regulations so you don’t need to worry.

Get in touch now to arrange a free, no-obligation design consultation



The average cost of an AMC garden annexe is around £95,000, although they can start from around £55,000 for one of our smaller units. 

The Example Layouts below provide a good indication of the budget needed for different styles of building.

Every annexe we design is unique and there are a lot of different variables that can affect the cost – most notably the size

of the building. However, other factors such as the cladding, the specification of the kitchen, and the configuration of the

glazing will also have a significant impact on the price.   

Our design consultant will talk through the various options to help you make the best use of your budget.

Annexes - examples


Our design team are able to quickly create tailored layouts ensuring a seamless blend of your unique needs and preferred aesthetic.

Have a look at some examples below.

20-30 sqm


Full installation inc VAT

30-40 sqm


Full installation inc VAT

50+ sqm


Full installation inc VAT




We're committed to you

We are a team of designers, carpenters and project managers who care passionately about the products we build and the service we offer our customers.


Our 30-year history designing and building timber structures means we have all the expertise needed to deliver you a gorgeous outdoor room which perfectly suits your business as well as your budget.

Customer service as at the heart of everything we do. We are proud to receive so many positive reviews from our valued customers. You can read what they've been saying about us on TrustPilot, Google or here.

Our aim is to give you the garden building you dream of - get in touch to find out what we can do for you.

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AMC Garden Annexes- Key benefits


FREE site survey and design consultation


Six-year guarantee



Clear & transparent pricing policy



100% British-made



Minimal ongoing maintenance



Friendly, polite & respectful install teams


Bespoke design and individually handmade


Buy direct from the manufacturer for the best possible price



Superior customer service



Where we work 

Our workshop is located in Huntingdon, Cambridgeshire and we install garden annexes throughout England.  But if you like what you see and live further afield, please just give us a call and we’d be delighted to discuss what we can do for you. 

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