From £41,230
A to Z Builders Ltd are here to help customers who need an Extension Builder in Houses Of Parliament. We offer a competitive rate to complete all y...
From £44,380
F & F Building Services is an established extension buildering business in Houses Of Parliament. We come highly recommended and provide competitive...
From £41,410
Relax... you have found a reliable extension builder in Houses Of Parliament. London Projects Ltd is a friendly and reliable company based in House...
From £21,340
Here at London Design and Build, our team of architects, interior designers, structural engineers and contractors, offer a bespoke, turn-key servic...
From £45,100
Cliden Construction (London) is a trusted extension builder serving customers in Houses Of Parliament and the surrounding area. Contact us to today...
From £45,280
Luxury Movement is an established extension buildering business in Houses Of Parliament. We come highly recommended and provide competitive quotes ...
From £47,170
Welcome to Adamko Interiors Ltd. We specialize in customized interior design solutions, prioritizing customer satisfaction and creating safe, comfo...
From £45,460
Experienced extension builder ready to quote for your work. Mayfair Design is the best extension builder in Houses Of Parliament. No obligation fre...
From £45,820
Experienced extension builder ready to quote for your work. Future Homes Design and Build is the best extension builder in Houses Of Parliament. No...
From £42,670
Trusted and professional extension builder in Houses Of Parliament. Experienced in all extension buildering work and keeping within budget and on q...

Comparing extension builders estimates for Side return extension gives you an idea of who will be better value but the best way to compare costs is to get actual quotes.
What to do - Get rates and quotes for a side return extention by posting your job to extension builders in Houses Of Parliament.
Whether you’re looking to extend your kitchen with a side return extension or you want to convert your basement into a liveable space, read our cost guides to get an idea of how much each project costs before getting a more accurate quote from our database of reliable tradespeople.

Underpin a building - £17,543

Two storey extension - £88,065

Build a timber frame extension - £26,043

Build a swimming pool - £81,043

Single storey extension - £55,864

Side return extension - £41,986

Install an RSJ - £2,243

Outbuilding - £10,043

Build a Mansard loft conversion - £52,043

Loft conversion - £34,155

Build a kitchen extension - £42,043

Hip to gable loft conversion - £42,043

Granny annexe - £87,043

Garden office - £10,043

Convert a Garage - £16,043

Garage - £18,543

Build a flat roof extension - £22,043

Build a dormer loft conversion - £42,043

Concrete foundations - £6,293

Convert a bungalow loft - £29,043

Convert a basement - £37,986