Greater London · BR1, BR2, BR3, BR4, BR5, BR6, BR7
Extensions in Bromley
A home extension adds new floor space to an existing property — commonly a rear or side-return kitchen extension, a wraparound, or a first-floor addition — and typically involves planning or permitted development approval, Building Regulations, and coordination of groundworks, structure, roofing and internal finishing.
In Bromley, that covers Beckenham, Orpington, West Wickham, Chislehurst, Petts Wood, Hayes, Bickley. Bromley is one of the greenest London boroughs, with a historic High Street and residential areas ranging from Beckenham and Orpington's Victorian and interwar housing to the more rural character around Chislehurst and Hayes, close to the Kent border and within easy reach of our Sevenoaks and Tunbridge Wells teams.
Coverage
Areas we cover in Bromley for extensions
Property styles in Bromley
Bromley's housing stock includes Victorian and Edwardian terraces and villas near the town centre and in Beckenham, substantial interwar detached and semi-detached houses across Orpington, Petts Wood and Bickley, and larger period properties around Chislehurst and Hayes, many on generous plots suited to rear and double-storey extensions.
Planning considerations
Bromley Council (London Borough of Bromley) is the local planning authority. Chislehurst and parts of Beckenham and Hayes are conservation areas, and much of the borough's southern and eastern edge is designated Metropolitan Green Belt, which restricts new buildings and substantial additions beyond normal permitted development limits.
How it works
Our extensions process
- 01
Feasibility and survey
Assessing what is achievable on the plot, including boundary conditions, trees, drainage and neighbouring properties.
- 02
Design
Developing layout and elevations that work with the existing house, in scale and materials.
- 03
Planning route
Establishing whether the extension falls under permitted development or requires a full planning application, and submitting accordingly.
- 04
Party wall matters
Serving party wall notices where the extension is near a boundary, ahead of any groundworks starting.
- 05
Construction
Groundworks, structure, roof, and first fix through to decoration, with the existing house kept weathertight throughout.
- 06
Completion
Building Control sign-off, snagging list and handover.
Also in this area
Other services we provide in Bromley
Nearby coverage
Extensions in nearby areas
FAQs
Extensions in Bromley: FAQs
Do you provide extensions across all of Bromley?
Yes, we cover the BR1 and BR2 and BR3 and BR4 and BR5 and BR6 and BR7 postcode areas in full, including Beckenham, Orpington, West Wickham, Chislehurst, Petts Wood, Hayes, Bickley.
Do I need planning permission for a rear extension?
Many single-storey rear extensions fall under permitted development if they meet size, height and boundary criteria. Larger extensions, those on designated land, or properties where permitted development rights have been removed, need a full planning application. We assess this during the feasibility stage.
What is a party wall notice and do I need one?
If your extension involves work at or near a shared boundary, the Party Wall etc. Act 1996 usually requires you to notify your neighbour before work starts. We flag this during design so notices can be served in good time.
Do you work across all of the Bromley postcode areas?
Yes, we cover BR1 to BR7, including Bromley town centre, Beckenham, Orpington, West Wickham, Chislehurst, Petts Wood and Hayes.
Get a quote for extensions in Bromley
Tell us about the property and what you have in mind, and we'll arrange a site visit.
Last reviewed 2026-07-19.