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Residential extensions and new builds for home owners
Are you a home owner looking for more space for the family, or simply in need of some updating or remodelling? You'll benefit from a trustworthy, reliable and understanding designer who can find solutions that match your vision.
What you may need
You may simply need a sketch design or planning permission drawings for approval. You may also need Building Regulations drawings for council approval, plus some guidance on the construction phase.
- Sketch designFirst ideas for the space you want, with alternatives to consider.
- Planning permission drawingsFull technical drawings for submission to the council, or a Certificate of Lawfulness under permitted development.
- Building Regulations drawingsTechnical drawings for council approval, in partnership with LABC.
- Guidance on the construction phaseHelp choosing a builder and being on hand while the works are carried out.
Before and after
Six homes across Surrey and London, each shown as it was and as it is now. Drag across the Weybridge house to compare; open any of the others to see it full size.
BeforeAfter
Weybridge
A glazed rear extension added to the back of the house.
Drag the handle, tap the photo, or use the arrow keys.
From sketch to finished house
Three stages of a project: a plan sketch, a Building Regulations drawing and a completed house.

Plan sketch
First ideas for the layout, drawn by hand.

Building Regulations drawing
Technical drawings for the council's approval.

New house
The completed house, seen from the air.
What a project involves
What to budget for, which approvals apply, what you must arrange yourself and how long each stage takes, from survey to handover.
“The works have transformed our house both inside and out, creating a great family space which we enjoy every day.”A home owner client, from the reviews on our site
Request a consultation
An informal consultation in your home
If this sounds like the solution for your project and you'd like an experienced professional to help, please contact us for an informal consultation in your home.
- Phone
- 020 8973 0064
- office@greencu3ed.uk
- Studio
- Boathouse Design Studio, 27 Ferry Road, Teddington TW11 9NN