House Extensions
Rear and side-return extensions to maximise living space.
Typical: from £65,000
Areas we cover
Extensions, lofts and refurbishments for Islington terraces and period conversions — with planning and Building Control handled by us.
Experienced with Islington Council planning & conservation rules
Ideal for rear extensions, lofts and full refurbishments
We’ll call you back with timescales & next steps.
Design & build for period homes and conversions across N1, N5 and EC1.
Rear and side-return extensions to maximise living space.
Typical: from £65,000
Mansard and dormer lofts — conservation area compliant.
Typical: from £50,000
Apartment & townhouse upgrades with bespoke joinery.
Typical: POA
Survey, PD vs planning, outline budget.
Book nowIslington’s conservation rules can be complex — we handle planning, party wall and logistics with full transparency.
*Final price depends on access, spec and conservation area limits.
These are real Forge Build projects in London. Click to view full details on our projects page.
We’ll confirm costs, planning route and project timings on a quick call.
Yes. We handle drawings, structural design and Islington Council applications for extensions, lofts and conversions.
Yes, after survey we issue a fixed-price proposal with full inclusions, milestones and clear programme details.
We cover Angel, Highbury, Holloway, Canonbury, Barnsbury and all surrounding areas including N1, N5 and EC1.
Not listed? Call us to check: 020 3355 6146