From £59,320
Create Bespoke is a team of design and build experts, specialising in bespoke and luxury finishes. Your vision is at the heart of our process. Thro...
From £65,080
Dulwich Kent, SE21
Business Email:info@ Glazing & Boarding With local glaziers available 24 hours a day, 7 days a week we...
From £54,680
No Call out charges!
All Jobs Fully Insured and Guaranteed !!!
All aspects of Plumbing, Heating and Drains....
...From £62,040
We are Parallax and specialise in Construction Project Management and Design and Build with year long experience in the London high end residential...
From £62,360
Need to find an Extension Builder near you for all your extension buildering work?
St Ives Decor provides a local, trusted extension builde...
From £60,760
Martin's Builders & Decorators is a trusted extension builder serving customers in Dulwich and the surrounding area. Contact us to today to get a c...
From £61,240
Urban London Development is an established extension buildering business in Dulwich. We come highly recommended and provide competitive quotes for ...
From £60,440
BERNARD CONSTRUCTION LTD are here to help customers who need an Extension Builder in Dulwich. We offer a competitive rate to complete all your exte...
From £61,560
Trusted and professional extension builder in Dulwich. Experienced in all extension buildering work and keeping within budget and on quote. JM Prop...
From £75,480
Buci builders ltd is a trusted extension builder serving customers in Dulwich and the surrounding area. Contact us to today to get a competitive qu...

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 - £17,865

Two storey extension - £88,547

Build a timber frame extension - £26,365

Build a swimming pool - £81,365

Single storey extension - £62,296

Side return extension - £45,604

Install an RSJ - £2,565

Outbuilding - £10,365

Build a Mansard loft conversion - £52,365

Loft conversion - £37,170

Build a kitchen extension - £42,365

Hip to gable loft conversion - £42,365

Granny annexe - £87,365

Garden office - £10,365

Convert a Garage - £16,365

Garage - £18,865

Build a flat roof extension - £22,365

Build a dormer loft conversion - £42,365

Concrete foundations - £6,615

Convert a bungalow loft - £29,365

Convert a basement - £41,604