House extension in Lambeth. £1,650 fixed.
Plans, building regs and structural calcs for your single-storey extension, with drainage and foundation design included.
Lowest price in London.
House extension drawings for Lambeth homes.
Lambeth's Victorian terraces around Clapham, Brixton and Streatham are prime side-return and loft territory for growing families.
We cover Clapham, Brixton, Streatham and the rest of Lambeth, with the same fixed £1,650 price wherever you are in the borough.
One fixed price, the whole pack.
Fixed price does not include the £199 application management fee. Larger or non-standard projects are priced individually after the site visit.
Do you need planning permission?
Single-storey rear extensions up to the standard size limits usually go under permitted development. Side and wrap-around extensions, conservation areas and flats are different, and where a planning application is required we manage and submit it for you.
Lambeth has many conservation areas alongside streets with full permitted-development rights. The difference is address-specific, and we confirm yours before you commit.
We confirm exactly which applies to your address before you commit to anything. No guesswork, no surprises.
From postcode to build-ready.
Tell us your postcode
Drop your postcode and project into the quote form. You get your fixed price on screen in about 30 seconds, no quote-after-a-call.
We survey and draw
A qualified designer visits, measures up, and produces your full drawing pack and structural calcs. 14 working days as standard.
Submitted and ready to build
You get the building regs pack for Building Control, and where a planning application is needed we manage and submit it for you.