House Extensions
Rear and side extensions for terraced and detached homes.
Typical: 8–12 weeks
Areas we cover
Extensions, lofts and full refurbishments for Hampstead homes — with Camden Council planning, party wall and Building Control managed by us.
Experienced with Hampstead conservation area requirements
Ideal for basements, lofts and townhouse refurbishments
We’ll call you back with timescales & next steps.
Design & build for listed homes, period conversions and townhouses in NW3.
Rear and side extensions for terraced and detached homes.
Typical: 8–12 weeks
Mansard and dormer lofts — conservation-aware design.
Typical: 6–10 weeks
Luxury townhouse renovations with full MEP upgrade.
Includes joinery & finishes
Survey, PD vs planning, outline budget.
Book nowWe specialise in managing design and construction in conservation-heavy areas like Hampstead and Belsize Park.
*Final price depends on access, spec and conservation status.
These are real Forge Build projects in London. Click to view full details on our projects page.
Yes. We handle drawings, structural calculations and Camden Council submissions, including conservation-area constraints around Hampstead Village and Belsize Park.
Yes. After survey you’ll receive a fixed-price proposal with a clear programme and payment milestones, so you know exactly what’s included.
We cover Hampstead Village, Belsize Park, Swiss Cottage, Frognal, West Hampstead and all NW3/NW6 overlaps.
Not listed? Call us to check: 020 3355 6146