Compact classic design
The granny annexe is the perfect living space addition to any home.
Featuring a single deck step and small overhang to the front, this annexe is designed to give you maximum internal space compared with the external area the annexe takes up.
Choose your size from three width options:
The Annex offers the ultimate solution for extra space at home or for your business, so we make sure the price of your annex includes a variety of options and services. We supply and fit a host of the highest quality appliances as standard alongside an unrivalled end-to-end service solution, which includes full management of planning permission.
All sizes and prices include VAT. Also included: kitchen, bathroom and electric options, a 2.3m French door, a rectangular and a lozenge window, foundations, levelling,
electrical and plumbing connection planning permission, and building control sign off.
A one person contact throughout the process to give you all the information you need. They’ll liaise with you on all your dates, answer any questions and provide you one contact point throughout.
Every one of our garden annexes is fully signed off and built to building regulations. Warm, safe and total peace of mind for your annexe.
No need to find your own electrician because we’ve got it covered. Internal and external lighting, heating and 20 meters of armoured cable for your electrical connection come as standard.
We include 10m of water and soil connection as standard. We install soft close toilet seats, low profile shower trays and Aqualisa showers in every annexe.
Your own specialist annex planning consultant, as standard. Planning permission is included in the cost of our garden annexes.
Groundworks and Foundations
Included in the price of your garden annex is full groundworks preparation including plumbing and concrete foundations.
A turn-key solution you can trust
Transparent pricing, Quality as standard
We understand that purchasing a garden annexe is a huge investment, which is why we do the hard work for you. Exceptional customer service and quality is in our DNA. We’ve painstakingly perfected our process over more than a decade of constructing rooms in the garden.
From our specialist planning consultant, to our British handcrafted Sheraton kitchens, we ensure that every element of your journey with us at The Annex is looked after.
Ready to get started?
Customer Reviews You Can Trust
Take a look at our many positive Trustpilot reviews to see why our customers rate us 5 stars.
We had an excellent experience with GreenRetreats
We had an excellent experience with Green retreats, right from the beginning they guided us through the process and helped us choose the right unit to suit our families needs. The installation was great and the guys working were always very friendly and tidied up afterwards.
Harold & Louise Penberthy
Really quick and easy
The process of getting a garden room built was really easy and very quick - less than a month from visiting their showroom to getting the keys. The customer care was great and they always responded to emails, queries or calls. The work men arrived when they said they would and worked really hard with minimal disruption to the house, even when taking the panels and tools through, and they even cleared up after themselves. The base only took half a day to install and the building was up and finished in 2 1/2 days. The only reason I gave it a 4 was because they changed the date for the installation of the base very close to the time, which meant I had to change work around in order to be there. I would highly recommend Green Retreats - I now have 2 extra bedrooms at a fraction of the cost and time it would have taken to extend the house.
I am absolutely delighted with the…
I am absolutely delighted with the service from Green Retreats. Heather Cresser my assigned customer care lady was so helpful and efficient. The team who worked on my studio over a period of three weeks did an amazing job, punctual, tidy, professional friendly and gave me lots of helpful tips. I wouldn't hesitate to recommend and use them again in the future. Thank you Green Retreats fab team Marceena Comber
Green Retreats are a class act
Green Retreats are a class act. Everything happens on schedule and to a very high standard. Everyone involved is unfailingly helpful, friendly and efficient. I would recommend anyone considering a garden room to talk to Green Retreats.
Brilliant, can't fault them.
guys turned up on time, explained everything, were brilliant. the building is great and so worth it. the lady at green retreats was so helpful. If a garden retreat is what you want, this company you can't go wrong. thank you Emily.
Great looking and all done to schedule!
Really good. Built and electrics/internet installed without glitch. Thoroughly recommend them!
My therapy room looks fantastic
My therapy room looks fantastic. The whole experience was really good from the initial meeting at the showroom, the construction and the liaison with the care team. Everything went really smoothly. The guys turned up on time and just got on with the job and cleared everything away each day. Would highly recommend Green Retreats for your garden studio.
The final room is superb
The final room is superb, but it is the overall experience with Green Retreats that is so good. They do exactly what they say they are going to do, when they say they are going to do it. Every person involved in the process was unfailing polite and helpful, nothing was too much trouble. Thank you!
At The Annex we believe in keeping things simple. We’ve compiled answers to the most frequently asked questions about our garden annexes.