Glass & rear extensions
Contemporary rear additions with crittall-style glazing & premium kitchens.
Typical: from £85,000
Areas we cover
High-spec extensions, loft conversions and townhouse refurbishments for SW3, SW7, W8 and RBKC mews properties — with planning, heritage and access handled by us.
Heritage, licence-to-alter & access-friendly programmes
Perfect for mews houses, mansion flats & basements
We’ll call you back with cost ranges & timescales.
High-end design & build for prime London homes — glass extensions, lofts, basements and luxury interior refits.
Contemporary rear additions with crittall-style glazing & premium kitchens.
Typical: from £85,000
Mansard & dormer lofts to add bedrooms, study or master suite.
Typical: from £60,000
Luxury townhouse and mansion flat renovations with joinery.
Typical: POA
We confirm planning/heritage route, access and budget.
Book nowRBKC projects need careful sequencing — parking, deliveries, listed status, neighbours and access windows. We build your programme around that.
*Final price depends on access, heritage, services upgrades and interior specification.
These are real Forge Build projects in London. Click to view full details on our projects page.
We can confirm access, costs and programme on a quick call.
Yes. We routinely work with RBKC, prepare drawings and where needed heritage statements. We can also help you navigate freeholder / mansion-block approvals.
Yes. After survey we issue a fixed-price proposal with a clear programme, access notes and milestone payments.
We cover Kensington, Chelsea, South Kensington, Earl’s Court, Holland Park, SW3, SW5, SW7 and W8.
Not listed? Call us to check: 020 3355 6146