House Extensions in Greenwich
Greenwich spans from the historic town centre and Blackheath to Woolwich, Plumstead, Charlton, Eltham and Thamesmead — a wide range of property types and price points across SE3, SE7, SE9, SE10, SE18 and SE28.
House Extensions in Greenwich — what to expect
Greenwich extensions vary significantly by area. Plumstead and Woolwich terraces suit rear dormers and kitchen extensions. Eltham's interwar semis have wider plots for side and double-storey extensions. The SE18 area around Plumstead Road generates consistent prior approval 6m rear extension work. Conservation areas in Greenwich town and Blackheath require careful design.
Greenwich property types
Victorian and Edwardian terraces (Woolwich, Plumstead, Charlton), inter-war semis (Eltham), newer builds (Thamesmead). The property type affects which extensions approach works best — we'll advise from the first call.
Common extensions projects we deliver in Greenwich
How we deliver extensions in Greenwich
Free consultation & survey
We visit your Greenwich property, assess what's possible, and give you a fixed-price indication before you commit to anything. No obligation.
Design & planning support
We work alongside your architect or our preferred design partners to develop drawings that are buildable, compliant, and cost-effective. We flag planning and permitted development options early.
Fixed-price contract
You receive a detailed, itemised scope of works and a fixed price before we start. No surprises mid-project. Variations are agreed in writing before any additional work begins.
Managed delivery
We manage all trades, procurement, and site logistics. You have a single point of contact throughout. Our site teams are familiar with Greenwich and the local planning and building control requirements.
Sign-off & warranty
We complete to building regulations standard and obtain all relevant sign-off. Your structural warranty covers up to 25 years.
Planning in Greenwich
The Royal Borough of Greenwich includes conservation areas in Greenwich town, Blackheath and parts of Charlton. Listed buildings exist throughout. The Woolwich town centre is subject to active regeneration planning policy. Always verify PD rights with RBG Planning.
Why choose RCB Design & Build in Greenwich?
Local knowledge
We work in Greenwich regularly. We know the planning authority, local building control, and the typical property types and challenges in this area.
Fixed-price guarantee
Your price is fixed before work starts. We absorb material and labour cost movements — not you.
Full principal contractor service
We manage every trade, every supplier, every inspection. You deal with one team from start to finish.
25-year structural warranty
All structural work is covered under our long-term warranty. Proof of quality, in writing.
Checkatrade-verified
Over 100 verified reviews from homeowners across London. Independently verified, not self-reported.
Design-and-build capability
We don't just build — we can support design development, planning applications, and pre-construction cost planning.
Other services in Greenwich
Start your Greenwich project
Free consultation. Fixed price. 25-year warranty. One team from first call to final sign-off.
Or call us on 07359 872594