House Extensions in Crystal Palace
RCB Design & Build | A2Z Principal Contractors delivers loft conversions, rear extensions, full house refurbishments, and structural alteration works across Crystal Palace, Anerley, and the SE19 postcode area. Crystal Palace has a distinctive residential character — generous Victorian and Edwardian villas and terraces on the hillside streets around the park, with a mix of semis and terraces in the wider SE19 area. The quality and scale of the Victorian and Edwardian housing stock in Crystal Pala
House Extensions in Crystal Palace — what to expect
Single and double-storey rear extensions are popular across SE19. Many properties have good rear garden depth, and a well-designed extension significantly improves the ground-floor layout. We manage planning, structural work, drainage, and internal decoration as a single project.
Crystal Palace property types
Period and interwar houses. The property type affects which extensions approach works best — we'll advise from the first call.
Common extensions projects we deliver in Crystal Palace
How we deliver extensions in Crystal Palace
Free consultation & survey
We visit your Crystal Palace 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 Crystal Palace 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 Crystal Palace
**Full house refurbishments.** We work with homeowners across Crystal Palace on comprehensive refurbishments — structural reconfigurations, full electrical and plumbing upgrades, kitchen and bathroom replacement, flooring, and decoration managed as a single sequenced programme. **Structural alterat
Why choose RCB Design & Build in Crystal Palace?
Local knowledge
We work in Crystal Palace 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 Crystal Palace
Start your Crystal Palace project
Free consultation. Fixed price. 25-year warranty. One team from first call to final sign-off.
Or call us on 07359 872594