House Extension Drawings in Orpington |

No Article 4 Direction covers Bromley, which keeps the Orpington permitted-development route open on unlisted houses. Orpington reads as 1930s semi-detached, post-war, and that character is precisely what a Bromley Council case officer tests a proposal against. A BR5 property inside Bickley loses part of its permitted development and generally goes to Bromley Council in full. We establish it for the BR5, BR6 address before any drawing begins.

Knowing how Article 4 directions apply to your BR5 address is the first thing we establish. A BR5 survey answers most of it — where the 1930s semi-detached allows the rear wall to go. The borough policy layer over every BR5, BR6 address is set out on Bromley planning. The Orpington survey then carries into building regulations drawings in Orpington if the project runs on to construction.

An incomplete Orpington pack sits in the London Borough of Bromley validation queue. Week one is a laser measured survey at your Orpington property; the existing plans are drawn from that survey, never from an estate agent's floorplan.

Statutory periods: 8 weeks from validation for a householder application, 13 weeks for a major scheme, 6 weeks for prior approval with a 21 days neighbour consultation, and 5 weeks for a full plans building control submission. A party structure notice requires one month notice and two months where excavation is involved.

Neighbour consultation on a Orpington case runs 21 days from registration. We issue the BR5 drawings numbered and revision-controlled.

We design Orpington schemes to answer the amenity objection before it is written. Levels between front and rear of a Orpington house are recorded, not assumed.

On Orpington stock the party wall stage is routine and worth timetabling. Once consent is granted, loft conversion drawings follows for the BR5 property.

Orpington is characterised by 1930s semi-detached, concentrated across BR5, BR6 in the Orpington / Petts Wood area. The construction sequence on a Orpington job follows the 1930s semi-detached, not a standard detail sheet. Translated to the 1930s semi-detached here: 1930s semis here have the deepest rear gardens in the area, which is why the 6 m and 8 m larger-home prior approval route gets used so often. That is the Orpington constraint Bromley Council will look for. The prevailing Orpington eaves line is the reference Bromley Council uses, which is why the proposed elevation is drawn with the neighbours on it.

Going down in Orpington is assessed on ordinary grounds — BR5 ground conditions and drainage do more to shape the scheme than policy does. One Orpington survey serves architectural drawings for BR5 properties and planning permission too; we do not re-measure a BR5 property for each submission.

What the Orpington drawing pack contains

• existing and proposed ground-floor plans for the Orpington property
• proposed rear elevation
• long section through the extension
• site and block plans
• party wall position drawing

Local landmarks that shape a Orpington application

• High Elms Country Park — side returns where the 45-degree amenity test decides how far a High Elms Country Park extension goes.
• Green Street Green — side returns where the 45-degree amenity test decides how far a Green Street Green extension goes.
• Broom Hill — closet wings that change how a rear extension meets the Broom Hill back addition.
• Orpington High Street — schemes visible from it get closer scrutiny in Bromley.
• Newstead Wood School — it fixes the local datum a Orpington roof extension is judged against.
• Parish Church — proposals within its setting are drawn with the context elevation included.
• Orpington Hospital — proposals within its setting are drawn with the context elevation included.
• Princess Royal University Hospital — massing on adjoining BR5 plots is tested against it.

Getting to a Orpington survey

Surveyors travel to BR5 addresses from the studio; the nearest stations are Orpington, Charing Cross, Cannon Street station, Grove Park station. Appointments are booked in Orpington on weekdays and Saturdays, and the measured survey of a standard 1930s semi-detached takes two to three hours.

Where Orpington sits

Orpington lies 13.4 miles (21.6 km) southeast of Charing Cross, on Ordnance Survey grid reference TQ460660. Getting that wrong is the commonest reason a Orpington submission is returned. Source.

Practical detail for a Orpington submission: we reach Orpington sites via Orpington and Charing Cross and Cannon Street station and Grove Park station; the Orpington post town is ORPINGTON; dialling code 01689. Site plans are drawn to the address as Bromley Council holds it.

Orpington postcode coverage

Districts covered around Orpington: BR5 (Orpington / Petts Wood), shared with Petts Wood; BR6 (Orpington), which Orpington holds on its own.

Streets and stations in Orpington

Typical Orpington work sits on High Elms Country Park, Green Street Green and Broom Hill. most Orpington sites are within walking distance of Orpington or Charing Cross or Cannon Street station.

Areas we cover around Orpington

Coverage from Orpington extends to Catford (SE6), Deptford (SE8), Hither Green (SE13), Sydenham (SE26), Greenwich (SE10), Charlton (SE7) and into Southwark.

The variables on a BR5 job are structural: party walls, floor levels, and whether the Bickley designation adds a heritage statement.

Statutory application fees are set by regulation, not by the council: £548 householder, £610 for a new dwelling, £274 for a lawful development certificate, £249 for prior approval.

London Borough of Bromley collects the statutory fee when the Orpington application is submitted. London planning approval-rate dataset · Bromley planning · house extension drawings across London · house extension drawings in Catford.

Chartered accountability applies to every BR5 drawing we issue. A tight Orpington plot — Orpington High Street in the setting, a shared flank wall on BR5 — goes to Bromley Council for advice before it goes to determination.

Drawings are produced by chartered members of the Chartered Institute of Architectural Technologists (MCIAT), the professional body for technical design and building-regulations competence. First-time approval across our London caseload is 98%. Statutory fees shown are those in force in England in 2026 under the Town and Country Planning (Fees for Applications) Regulations. Confirm your local authority at gov.uk and submission requirements on the Planning Portal. Studio: 71–75 Shelton Street, London WC2H 9JQ.

Send us the Orpington address and we will confirm the route before you commit. This Orpington page was reviewed in August 2026.