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.
rcbGroup projectHouse 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 extension approach works best — we'll advise from the first call.
Common extension projects we deliver in New Cross
How we deliver extension projects in New Cross
Project review & site visit
We look at your New Cross property and any drawings you have, explain what's possible, the likely planning and Building Regulations route, and the risks — 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.
Itemised scope and price
You receive a detailed, itemised scope of works and an agreed price before we start, with exclusions and provisional sums shown. Variations are agreed in writing before any additional work begins.
Managed delivery
We coordinate trades, procurement and site logistics, with a single point of contact throughout — working to the requirements of London Borough of Lewisham and Building Control.
Sign-off & handover
We coordinate the Building Control inspections needed for sign-off, then hand over your project documents — completion certificate, guarantees and manuals as applicable — with snagging and aftercare as set out in your contract.
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 rcbGroup in New Cross?
Local context
We plan around London Borough of Lewisham's requirements and the typical property types in New Cross — victorian terraces, converted victorian townhouses, post-war infill.
Price agreed before start
Your price is agreed and documented before work starts. Scope, exclusions, and assumptions set out in writing.
One accountable team
Trades, suppliers and inspections coordinated by one team — with CDM Principal Contractor duties taken on where we are appointed to build.
Written project documentation
A written contract before work starts, a Construction Phase Plan where we are appointed to build, and the completion certificate and handover documents gathered for you at the end.
Independently reviewed
Rated 10/10 from 117+ reviews on Checkatrade, where you can read them for yourself.
Support from planning to aftercare
We don't just build — we can support design development, planning applications, and pre-construction cost planning.
Planning an extension in New Cross?
Pick whatever suits you. We'll look at what you have (drawings, photos or quotes) and tell you honestly what the next step should be.
Prefer to phone? Call +44 7359 872594.
Other services in New Cross
Postcodes served: New Cross
Not sure if we cover your street? Get in touch — we'll confirm in minutes.
Start your New Cross project
Project review. Clear scope. Agreed price. One team from first call to Building Control sign-off.
Or call us on +44 7359 872594