Planning permission drawings, rear extensions, and loft conversions for Orpington's 1930s semis and family homes. MCIAT chartered, fixed fees, Bromley planning expertise built in.
Orpington sits in the BR6 postcode in the south of the London Borough of Bromley, at the edge of the Greater London boundary. The town's extensive 1930s and post-war housing stock makes it one of south-east London's most consistent extension markets.
1930s semi-detached stock: Much of Orpington is inter-war semi-detached on generous plots. Hip-to-gable loft conversions, 4–6m rear extensions, and two-storey side extensions are the core project mix. Most fall within permitted development.
Detached family homes: Orpington's detached stock — particularly in the streets south and east of the town centre — offers substantial extension potential. Wraparounds, double-storey rear extensions, and garage conversions are all common.
Bungalow upgrades: Orpington has a significant bungalow stock. Adding a first floor — via raise-the-roof loft conversion or full first-floor extension — is a popular way to create family homes from smaller bungalows. Structural calculations are critical.
Permitted development: Outside the small town centre conservation pockets, Orpington properties retain full PD rights. We maximise the achievable scheme under PD where possible, saving time and cost.
Single planning or regs submission.
Planning + building regs + structural.
Listed, conservation, complex sites.
Direct answers to the questions Orpington homeowners ask us every week about planning, extensions, and loft conversions.
Start a free quoteOften yes. Two-storey rear extensions up to 3m are PD in many cases. Two-storey side extensions need planning permission once they exceed half the original width. We confirm and prepare drawings.
For most Orpington properties outside the small conservation pockets — no. Rear dormers and hip-to-gable conversions typically fall within PD. We prepare the Lawful Development Certificate and building regs drawings.
These can fall within PD depending on height and volume, or may require planning permission. We assess early and prepare either submission.
Our Essentials package starts from £840. The Complete package from £1,750 covers planning and building regulations plus structural calculations.
Bromley targets 8 weeks for householder applications. Most Orpington applications are straightforward. We manage the full process.
We cover every London neighbourhood. Here are areas adjacent to Orpington where we work regularly.
Every service you need for a Orpington project, from a single chartered team.
Rear extensions, side returns, wraparounds, and basement feasibility for local housing stock.
Dormers, mansards, and Velux conversions designed for local roof profiles and planning constraints.
Construction-ready drawing packages compliant with all Approved Documents, submitted to local Building Control.
Free quote in 60 seconds. Fixed fee from £840. MCIAT chartered. Conservation area expertise included.
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