House Extensions and Loft Conversions in Belgravia
Suddeco designs, gets approval for and builds extensions, loft conversions and renovations across Belgravia. Designed, approved and built by one team.
Side return · indicative renderWhat gets approved in Belgravia
Real planning decisions near you, from council records.
We check Belgravia decisions from your exact address
Public planning records vary by council: for Belgravia we do not hold a district-level summary yet, so we run the check against your own address instead — it uses the same council records.
Planned 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 Belgravia
Stucco-fronted Regency terraces and mews houses, largely on the Grosvenor estate. Townhouse and apartment refurbishments, mews-house renovations, kitchens, bathrooms and listed interiors.
Belgravia is a conservation area with many listed terraces; estate licences and listed building consent shape what can be done inside and out. We check your exact address with Westminster City Council records before we draw anything, and price the whole job — design, approvals and build — in one estimate.
Where we work in Belgravia
Belgrave Square, Eaton Square, Chester Square, Elizabeth Street and their mews.
Postcodes: SW1X and SW1W
Part of Westminster.
A construction company near you in Belgravia
Looking for a construction company near you in Belgravia? Suddeco designs, gets approval for and builds extensions, lofts, renovations and new builds in Belgravia — building company, general contractor and design and build firm in one team.
Belgravia FAQs
Are you a construction company near me in Belgravia?
Yes. Suddeco works across Belgravia 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 Belgravia?
Extensions, lofts, conversions, renovations and new builds in Belgravia, with the drawings and approvals.
What should we send for a Belgravia extension or loft?
Plans or photos, the property address, notes on access and anything awkward such as drainage or shared walls. Or start with just your address and we draw the existing house.
Is my street in a conservation area?
We check it when you enter your address, alongside permitted development and nearby decisions.
Do you build it yourselves?
Yes. Suddeco designs, handles planning and delivers the build with its own project management.



