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Postcode coverage

Architectural drawings in SE12

Lee / Grove Park — covered by Lewisham Council.

SE12 at a glance

Primary area
Lee / Grove Park
Borough
Lewisham
Planning authority
Lewisham Council
Conservation areas (borough)
30
Quote turnaround
Same day

Architectural technologist reviewing planning drawings — architectural drawings in London
Services in SE12

Drawings for every SE12 property type

Questions about SE12

SE12 planning FAQ

What borough is SE12?

SE12 primarily covers Lee / Grove Park in Lewisham. It also touches Bromley.

Do I need planning permission in SE12?

Decisions for SE12 are made by Lewisham Council. Standard Permitted Development rules apply for most rear extensions and loft conversions on terraced and semi-detached houses, unless the property is in a conservation area, is listed, or sits under an Article 4 Direction. Article 4 in Lewisham: No.

What does it cost to get drawings in SE12?

Building regs from £950. We do not charge hourly. Free site survey across all SE12 addresses.

How long does a project take in SE12?

From first call to planning decision: typically 12–14 weeks. Site survey week 1, design weeks 2–3, validation 1–2 weeks, statutory 8-week determination. Lewisham Council timelines align with the national norm.

What housing stock dominates SE12?

Lee / Grove Park in SE12 is characterised by the housing stock of Lewisham — broadly victorian and edwardian terraces across brockley, honor oak, forest hill.

Boroughs covering SE12

Local authorities

Nearby postcodes in Lewisham

An architectural technologist checking a printed set of house drawings, marking a proposed elevation in red — architectural drawings in SE12
Every set is checked line by line against the validation checklist before it leaves the office.
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Which postcode districts around SE12 do we cover for drawing package work?

Every SE12 postcode district we draw in, the stock that dominates it and the authority that validates a drawing package there. SE12 fees below are the statutory England rates for 2026, not drawing package estimates.

PostcodeAreaDominant stockWhat it means for a drawing package
SE12Lee / Grove Parkmixed Victorian and inter-war stockSE12 straddles a boundary: Lee / Grove Park addresses fall to Lewisham Council or Bromley Council, so confirm which authority validates the drawing package before submitting SE12 drawings.
SE4BrockleyVictorian and Edwardian terracesAdjoining district to SE12, also inside Lewisham for drawing package purposes.
SE6Catford / Bellingham1930s semi-detached, post-war flatsAdjoining district to SE12, also inside Lewisham for drawing package purposes.
SE8DeptfordGeorgian terraces, post-war estates, new-buildAdjoining district to SE12, also inside Lewisham for drawing package purposes.
SE20Anerley / PengeVictorian and Edwardian terracesAdjoining district to SE12, also inside Bromley for drawing package purposes.
BR1Bromley / BickleyVictorian terraces, Edwardian villas, post-war flatsAdjoining district to SE12, also inside Bromley for drawing package purposes.
BR2Hayes / KestonVictorian terraces, Edwardian villas, post-war flatsAdjoining district to SE12, also inside Bromley for drawing package purposes.
BR3BeckenhamEdwardian villas, 1930s semi-detachedAdjoining district to SE12, also inside Bromley for drawing package purposes.

How does a drawing package differ street by street across SE12?

Roof pitch, wall build-up and plot depth change every few SE12 streets, and each one changes what a drawing package can achieve at that address.

How do conservation areas and Article 4 affect a drawing package in SE12?

SE12 (Lee / Grove Park) conservation designations: there are 30 across Lewisham Council, Deptford High Street, Forest Hill, Hither Green among them. Designation costs a SE12 (Lee / Grove Park) owner the permitted-development route: a drawing package then needs a £548 householder application over 8 weeks, in place of the £249 prior approval route that takes 6 weeks. Blackheath is the SE12 (Lee / Grove Park) designation that most often changes a drawing package design.

Article 4 and your SE12 (Lee / Grove Park) drawing package: Lewisham Council has made no borough-wide direction, so permitted development for a drawing package in SE12 (Lee / Grove Park) generally survives outside SE12 (Lee / Grove Park) conservation areas and listed curtilages. A Lawful Development Certificate at £274 is how a SE12 owner records that a drawing package was lawful.

What SE12 (Lee / Grove Park) is built from: Victorian and Edwardian terraces across Brockley, Honor Oak, Forest Hill; 1930s semi-detached in Catford and Hither Green; post-war mixed in Deptford. Generally permissive planning compared to central boroughs; loft conversions and side-return extensions routinely approved under PD. That mix decides the drawing package route in SE12 (Lee / Grove Park) more than the postcode does, and it is what a Lewisham Council case officer reads first. A householder application costs £548 paid to Lewisham Council direct, with 8 weeks to a decision once validated.

SE12 (Lee / Grove Park) conservation designations: there are 48 across Bromley Council, Chislehurst, Beckenham, Keston among them. Designation costs a SE12 (Lee / Grove Park) owner the permitted-development route: a drawing package then needs a £548 householder application over 8 weeks, in place of the £249 prior approval route that takes 6 weeks. Bromley Town is the SE12 (Lee / Grove Park) designation that most often changes a drawing package design.

Article 4 and your SE12 (Lee / Grove Park) drawing package: Bromley Council has made no borough-wide direction, so permitted development for a drawing package in SE12 (Lee / Grove Park) generally survives outside SE12 (Lee / Grove Park) conservation areas and listed curtilages. A Lawful Development Certificate at £274 is how a SE12 owner records that a drawing package was lawful.

What SE12 (Lee / Grove Park) is built from: Large 1930s detached and semi-detached in Chislehurst and Bickley; Edwardian in Beckenham; Victorian in Bromley town; Metropolitan Green Belt covers significant rural-fringe land. Largest London borough by area; substantial Green Belt; conservation areas in most town centres; generally permissive elsewhere. That mix decides the drawing package route in SE12 (Lee / Grove Park) more than the postcode does, and it is what a Bromley Council case officer reads first. A householder application costs £548 paid to Bromley Council direct, with 8 weeks to a decision once validated.

What happens if a SE12 property sits on a boundary?

Sources for this SE12 drawing package page: borough policies maps and conservation-area registers (2025–26), Royal Mail postcode district boundaries, the Town and Country Planning (Fees for Applications) (England) Regulations, the Town and Country Planning (General Permitted Development) (England) Order 2015 as amended, and the Party Wall etc. Act 1996.

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A printed planning application drawing set — proposed elevations, floor plans and the os location plan with the site outlined in red — architectural drawings in SE12
The planning set that goes to the council through the Planning Portal: proposed elevations, plans, and the OS location plan with your site outlined.
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