Loft Conversion Drawings in Keston | From £1,225

No Article 4 Direction covers Bromley, which keeps the Keston permitted-development route open on unlisted houses. Because Keston is Edwardian and 1930s village, the officer's assessment leans on streetscape impact around Keston Ponds as much as on the numbers. Bromley has 48 conservation areas, and Bromley Town is the one that most often covers Keston stock. We confirm the BR2 designation at survey rather than assuming it.

Article 4 coverage across BR2 is confirmed before we quote, not after. What can be built on a Keston plot is decided by the edwardian villas — the original rear wall position first, the Keston Ponds roofline second. The borough policy layer over every BR2 address is set out on Bromley planning. The Keston survey then carries into architectural drawings in Keston if the project runs on to construction.

Expect one to two weeks of London Borough of Bromley validation on a Keston submission before the statutory period even begins. The Keston job starts with a laser survey, not a sketch.

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.

Once Bromley Council registers the Keston case, the officer site visit usually follows within a fortnight. We issue the BR2 drawings numbered and revision-controlled.

Most Keston refusals trace back to overlooking, not to size. Everything drawn for a BR2 address traces back to a measurement taken on site.

Most Keston terraces share a flank wall, so party wall notices apply. Once consent is granted, planning permission follows for the BR2 property.

Keston is characterised by edwardian villas, 1930s semi-detached, concentrated across BR2 in the Hayes / Keston area. The edwardian villas that dominates Keston behaves differently from the borough average, and the drawings follow the building rather than a house type. What that means for a BR2 address: edwardian roofs run deeper front-to-back, so an L-shaped dormer over the back addition usually yields a second bedroom as well as the shower room. It is the first thing checked at the Keston survey. Bromley Council judges massing against the established Keston rhythm — the eaves and ridge lines running past Keston Ponds.

Going down in Keston is assessed on ordinary grounds — BR2 ground conditions and drainage do more to shape the scheme than policy does. If a Keston project extends into building regulations drawings for BR2 properties or house extension drawings, the survey is already done.

What the Keston drawing pack contains

Each Keston instruction produces this set of drawings.

• existing roof plan and section for the Keston property
• proposed dormer elevations
• volume calculation sheet
• staircase and head-height sections
• structural steel layout

Local landmarks that shape a Keston application

• Keston Ponds — height and massing nearby are argued against this frontage.
• Keston Common — massing on adjoining BR2 plots is tested against it.
• Hayes Common — it anchors the Keston streetscape argument in an officer report.
• Bromley Common — schemes in view of it attract closer officer scrutiny.

Getting to a Keston survey

Surveyors travel to BR2 addresses from the studio; the nearest stations are Hayes. Appointments are booked in Keston on weekdays and Saturdays, and the measured survey of a standard edwardian villas takes two to three hours.

Where Keston sits

on Ordnance Survey grid reference TQ415645, inside the Bromley and Biggin Hill,{{cite web parliamentary constituency. The BR2 block plan is set out from that grid square. Source.

Practical detail for a Keston submission: Keston is served by Hayes; KESTON is the post town on Keston addresses; dialling code 01689. Site plans are drawn to the address as Bromley Council holds it.

Keston postcode coverage

Surveys run across BR2 (Hayes / Keston), shared with Bromley throughout Bromley.

Streets and stations in Keston

Most Keston sites are within walking distance of Hayes.

Areas we cover around Keston

We take instructions from New Eltham (SE9), Bexleyheath (DA6, DA7), Sidcup (DA14, DA15), Welling (DA16), Erith (DA8), Crayford (DA1) and everywhere between them and Keston.

Two Keston jobs differ in price because of the edwardian villas and the Bromley Town designation, never because of hours booked.

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.

We invoice the drawings only; London Borough of Bromley takes the statutory fee from the Keston applicant. London planning approval-rate dataset · Bromley planning · our London loft conversion drawings service · loft conversion drawings in New Eltham.

Your Keston drawings are produced under professional charter, not subcontracted out and rubber-stamped. If your Keston site is tight — Keston Ponds in the setting, a Bromley Town designation, a shared flank wall — we test it with Bromley Council first rather than submit and hope.

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.

Ask us about your BR2 property before you commit to a builder's sketch. This Keston page was reviewed in August 2026.