House Extensions and Loft Conversions in Streatham
Suddeco designs, gets approval for and builds extensions, loft conversions and renovations across Streatham. Designed, approved and built by one team.
Side return · indicative renderPlanned around the house you have
Layouts shaped by the plot
Choose a layout that suits the plot, the structure and how you live.
Old and new join properly
Drainage, utilities and structural openings planned before they become snags.
Access kept in view
Residents, deliveries and trades all need a workable route through the site.
Start from a layout
What we build here
Nearby boroughs
What to know before building in Streatham
Victorian and Edwardian terraces and semis, with interwar houses towards Streatham Common. Side-return and rear extensions, hip-to-gable and dormer lofts, and whole-house refurbishments.
Streatham has several conservation areas around the High Road and Common; elsewhere permitted development often covers a rear extension or loft. We check your exact address with Lambeth Council records before we draw anything, and price the whole job — design, approvals and build — in one estimate.
Where we work in Streatham
Streatham Hill, Streatham Common, Streatham Park and Leigham Court.
Postcodes: SW16
Part of the borough page.
A construction company near you in Streatham
Looking for a construction company near you in Streatham? Suddeco designs, gets approval for and builds extensions, lofts, renovations and new builds in Streatham — building company, general contractor and design and build firm in one team.
Streatham FAQs
Are you a construction company near me in Streatham?
Yes. Suddeco works across Streatham and every other London borough. We survey the site, draw and approve the design, and build it with our own team. Call 020 3633 8086 or book a free survey.
What construction work do you do in Streatham?
Extensions, lofts, conversions, renovations and new builds in Streatham, with the drawings and approvals.
Do you build it yourselves?
Yes. Suddeco designs, handles planning and delivers the build with its own project management.



