BR1, BR2

Loft Conversions 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.

✓ Fixed-price guarantee✓ Up to 25yr structural warranty✓ Checkatrade-verified✓ FMB & TrustMark registered✓ Principal contractor

Loft Conversions in Bromley — what to expect

Hip-to-gable loft conversions are Bromley's signature project type. The interwar and post-war semi-detached properties in BR1 and BR2 have hipped roof profiles that are transformed by a gable conversion. L-shaped dormers and rear dormers follow. Most conversions are achievable under permitted development.

Bromley property types

Interwar and post-war detached and semi-detached, Victorian terraces near the town centre. The property type affects which loft conversions approach works best — we'll advise from the first call.

Common loft conversions projects we deliver in Bromley

Hip-to-gable loft conversion with rear dormer
Double-storey side extension on detached or semi-detached
6–8m prior approval rear extension
Wraparound extension on corner plot
Full family home refurbishment

How we deliver loft conversions in Bromley

01

Free consultation & survey

We visit your Bromley property, assess what's possible, and give you a fixed-price indication before you commit to anything. No obligation.

02

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.

03

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.

04

Managed delivery

We manage all trades, procurement, and site logistics. You have a single point of contact throughout. Our site teams are familiar with Bromley and the local planning and building control requirements.

05

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 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 RCB Design & Build in Bromley?

Local knowledge

We work in Bromley 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.

Start your Bromley project

Free consultation. Fixed price. 25-year warranty. One team from first call to final sign-off.

Or call us on 07359 872594