House Extensions in Bromley
Bromley is one of South East London's most active extension and loft conversion markets. Generous plot sizes across BR1 and BR2 make both rear and side extensions viable, and the large semi-detached stock suits hip-to-gable loft conversion well.
rcbGroup projectHouse Extensions in Bromley — what to expect
Bromley's semi-detached and detached stock offers genuine extension potential. 6–8m rear extensions under prior approval or permitted development are common. Side extensions into the garage or side passage are popular. Double-storey side extensions on wider detached plots add significant floor area.
Bromley property types
Interwar and post-war detached and semi-detached, Victorian terraces near the town centre. The property type affects which extension approach works best — we'll advise from the first call.
Common extension projects we deliver in Bromley
How we deliver extension projects in Bromley
Project review & site visit
We look at your Bromley 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 Bromley 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 Bromley
Bromley borough has Green Belt land in its outer reaches. Properties in BR2 near Keston and Hayes may be affected by Green Belt restrictions. Conservation areas apply in Bromley town centre and some residential areas. Verify with LBB Planning.
Why choose rcbGroup in Bromley?
Local context
We plan around London Borough of Bromley's requirements and the typical property types in Bromley — interwar and post-war detached and semi-detached, victorian terraces near the town centre.
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 Bromley?
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.
Postcodes served: Bromley
Not sure if we cover your street? Get in touch — we'll confirm in minutes.
Start your Bromley project
Project review. Clear scope. Agreed price. One team from first call to Building Control sign-off.
Or call us on +44 7359 872594