House Extensions in New Cross
New Cross (SE14) has attracted significant investment over the last decade, driven by proximity to Canary Wharf and the City. Victorian terrace and townhouse stock generates good extension and refurbishment work.
House Extensions in New Cross — what to expect
SE14 Victorian terraces suit rear extensions — 3–5m kitchen additions are the most common request. The narrow terrace format limits side returns in most cases, but rear extensions with structural openings to create open-plan living are consistently in demand.
New Cross property types
Victorian terraces, converted Victorian townhouses, post-war infill. The property type affects which extensions approach works best — we'll advise from the first call.
Common extensions projects we deliver in New Cross
How we deliver extensions in New Cross
Free consultation & survey
We visit your New Cross 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 New Cross 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 New Cross
New Cross is within the London Borough of Lewisham. Conservation areas exist in parts of SE14. New Cross Gate and surrounding streets have specific planning considerations. Verify with LBL Planning.
Why choose RCB Design & Build in New Cross?
Local knowledge
We work in New Cross 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 New Cross
Start your New Cross project
Free consultation. Fixed price. 25-year warranty. One team from first call to final sign-off.
Or call us on 07359 872594