House Extensions in Bethnal Green
RCB Design & Build | A2Z Principal Contractors works across Bethnal Green and the E2 postcode, delivering loft conversions, rear extensions, full house refurbishments, and structural alteration works for homeowners and investors across one of east London's most characterful residential areas. Bethnal Green combines a Victorian and Edwardian terraced housing stock with a strong design culture that attracts buyers who care about the quality of their homes. Many of our clients in E2 have high speci
House Extensions in Bethnal Green — what to expect
RCB delivers rear extensions, side returns, and double-storey extensions across Bethnal Green.
Bethnal Green 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 Bethnal Green
How we deliver extensions in Bethnal Green
Free consultation & survey
We visit your Bethnal Green 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 Bethnal Green 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 Bethnal Green
Verify current permitted development rights and planning requirements with the local planning authority before proceeding.
Why choose RCB Design & Build in Bethnal Green?
Local knowledge
We work in Bethnal Green 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 Bethnal Green
Start your Bethnal Green project
Free consultation. Fixed price. 25-year warranty. One team from first call to final sign-off.
Or call us on 07359 872594