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Bromley Council

Architectural technology in Bromley

Planning drawings, building regulations, loft conversions, house extensions and mansards — delivered across Bromley by MCIAT chartered technologists with deep knowledge of Bromley Council's policies.

Bromley at a glance

Planning authority
Bromley Council
Population
332,000
Conservation areas
48
Article 4 Direction
No borough-wide
Postcodes
BR1, BR2, BR3, BR4, BR5, BR6, BR7, BR8, SE6, SE9, SE12, SE20, SE26
Typical housing
Large 1930s detached and semi-detached in Chislehurst and Bickley

Architectural design tools and technical drawings — architectural drawings in Bromley
Services available in Bromley

Every architectural service in Bromley — one chartered team.

Planning Drawings in Bromley

Building Regulations Drawings in Bromley

A construction-ready drawing package compliant with every Approved Document — Part A structure, Part B fire, Part L thermal, Part M accessib...

Loft Conversions in Bromley

Every loft type across every Bromley roof line — dormer, mansard, hip-to-gable, L-shape, Velux. LDC or full planning route, building regu...

House Extensions in Bromley

The whole spectrum — rear extensions, side returns, wraparounds, double-storey, basement digs. Planning-led design with detailed technical p...

Mansard Roof Extensions in Bromley

Bromley's most space-efficient loft solution when PD-route dormers are blocked. Our chartered team designs mansards that get approved in ...

Garage Conversions in Bromley

Turn your unused Bromley garage into a bedroom, home office or open-plan kitchen-diner. Planning route assessment, full building regulati...

Basement Conversions in Bromley

Full architectural technology service for basement digs and cellar conversions in Bromley — structural underpinning design, waterproofing...

Structural Calculations in Bromley

Chartered structural engineer calculations for every residential intervention in Bromley — steel beams, lintels, pad foundations, wall re...

Measured Building Surveys in Bromley

Measured surveys across Bromley — floor plans, elevations and sections to ±3mm accuracy. Leica Disto laser + BLK360 point-cloud scanning,...

Party Wall Services in Bromley

End-to-end Party Wall Act 1996 service for Bromley — Section 1, 3 and 6 notices, schedule of condition surveys, party wall award coordina...

Rear Dormer Loft Conversions in Bromley

London's most popular loft type — the full-width rear dormer. Planning or Permitted Development route assessed for your Bromley property,...

Bromley planning context

Planning in Bromley

Housing stock: 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.

Character: Largest London borough by area; substantial Green Belt; conservation areas in most town centres; generally permissive elsewhere.

Notable conservation areas: Bromley Town, Chislehurst, Beckenham, Keston, Bickley

Architectural technology in Bromley — the exterior of a London house before works
The exterior of a london house before works — architectural technology in Bromley.
Nearby boroughs

Boroughs adjacent to Bromley

1930s detached houses in Chislehurst BR7
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All services in Bromley

What we do in Bromley

Planning Drawings in Bromley

Building Regulations Drawings in Bromley

A construction-ready drawing package compliant with every Approved Document — Part A structure, Part B fire, Part L thermal, Part M accessib...

Loft Conversions in Bromley

Every loft type across every Bromley roof line — dormer, mansard, hip-to-gable, L-shape, Velux. LDC or full planning route, building regu...

House Extensions in Bromley

The whole spectrum — rear extensions, side returns, wraparounds, double-storey, basement digs. Planning-led design with detailed technical p...

Mansard Roof Extensions in Bromley

Bromley's most space-efficient loft solution when PD-route dormers are blocked. Our chartered team designs mansards that get approved in ...

Garage Conversions in Bromley

Turn your unused Bromley garage into a bedroom, home office or open-plan kitchen-diner. Planning route assessment, full building regulati...

Basement Conversions in Bromley

Full architectural technology service for basement digs and cellar conversions in Bromley — structural underpinning design, waterproofing...

Structural Calculations in Bromley

Chartered structural engineer calculations for every residential intervention in Bromley — steel beams, lintels, pad foundations, wall re...

Measured Building Surveys in Bromley

Measured surveys across Bromley — floor plans, elevations and sections to ±3mm accuracy. Leica Disto laser + BLK360 point-cloud scanning,...

Party Wall Services in Bromley

End-to-end Party Wall Act 1996 service for Bromley — Section 1, 3 and 6 notices, schedule of condition surveys, party wall award coordina...

Rear Dormer Loft Conversions in Bromley

London's most popular loft type — the full-width rear dormer. Planning or Permitted Development route assessed for your Bromley property,...

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Leave your number and an Architectural technologist covering Bromley will call you back within 30 minutes during working hours.

An architectural technologist checking a printed set of house drawings, marking a proposed elevation in red — architectural technology in Bromley
Every set is checked line by line against the validation checklist before it leaves the office.

Which postcode districts around Bromley do we cover for drawing package work?

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

PostcodeAreaDominant stockWhat it means for a drawing package
BR4West Wickham1930s semi-detachedA drawing package at an BR4 address in West Wickham is determined by Bromley Council under its own Local Plan policies for West Wickham.
BR5Orpington / Petts Wood1930s semi-detachedBR5 covers Orpington / Petts Wood only; Bromley Council handles the drawing package, and Orpington / Petts Wood case officers apply the BR5 conservation-area map.
BR6Orpington1930s semi-detachedOrpington sits wholly inside BR6, so Bromley Council validates every drawing package submitted from an BR6 address.
BR7Chislehurst1930s detached, Edwardian villasBR7 covers Chislehurst only; Bromley Council handles the drawing package, and Chislehurst case officers apply the BR7 conservation-area map.
BR8SwanleyLarge 1930s detached and semi-detached in Chislehurst and Bickley; Edwardian in Beckenham; Victorian in Bromley town; Metropolitan Green Belt covers significant rural-fringe landSwanley sits wholly inside BR8, so Bromley Council validates every drawing package submitted from an BR8 address.
TN16Biggin Hill / Downe1930s semi-detachedBiggin Hill / Downe sits wholly inside TN16, so Bromley Council validates every drawing package submitted from an TN16 address.
SE9Eltham / Mottingham1930s semi-detached, post-war flatsA drawing package in Eltham / Mottingham may land with Greenwich Council or Bromley Council — SE9 crosses the boundary, and the SE9 policies map decides it street by street.
SE12Lee / Grove ParkLarge 1930s detached and semi-detached in Chislehurst and Bickley; Edwardian in Beckenham; Victorian in Bromley town; Metropolitan Green Belt covers significant rural-fringe landSE12 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.

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

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

Does Bromley planning policy restrict a drawing package?

Bromley conservation designations: there are 48 across Bromley Council, Beckenham, Keston, Bickley among them. Designation costs a Bromley 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. Keston is the Bromley designation that most often changes a drawing package design.

Article 4 and your Bromley drawing package: Bromley Council has made no borough-wide direction, so permitted development for a drawing package in Bromley generally survives outside Bromley conservation areas and listed curtilages. A Lawful Development Certificate at £274 is how a SE20 owner records that a drawing package was lawful.

What Bromley 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 Bromley 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.

Who decides a drawing package on the edge of Bromley?

Sources for this Bromley 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.

What are the chances of approval in Bromley?

Over the 12 quarters from 2023 Q2 to 2026 Q1, Bromley decided 4,706 householder planning applications and approved 79.8% of them — 3.2 percentage points below the London average of 83%. That places Bromley 24th of 32 London boroughs on householder approval rate. These are decisions the council reported to MHCLG, not our own sample.

79.8%of householder applications approved
3,756approved in Bromley
950refused over the same period
89.7%decided within 8 weeks
Bromley planning decisions, 2023 Q2 to 2026 Q1
MeasureBromleyContext
Householder applications decided4,70677,680 across London
Householder approval rate79.8%83% London average
Decided within 8 weeks89.7%24th fastest of 32 boroughs
Took longer than 13 weeks5.1%the applications that overran the statutory target
Minor dwellings approval rate49.8%new-build and conversion schemes under 10 units
All application types76.1%across 6,712 decisions
Certificates of lawfulness issued1,675confirmations that work was permitted development

Speed matters as much as the odds. Bromley decided 89.7% of householder applications inside the eight-week statutory period and let 5.1% run past thirteen weeks. A drawing package that is complete and correctly described at validation is the part of that timeline you control; the rest belongs to the council's caseload.

Source: MHCLG District Planning Application Statistics (PS1 and PS2), 2023 Q2 to 2026 Q1, published quarterly by the Ministry of Housing, Communities and Local Government. Counts are decisions made in the window, not applications submitted. Contains public sector information licensed under the Open Government Licence v3.0.

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Neighbourhoods we cover in Bromley

10 Bromley neighbourhoods

We've delivered architectural drawings across every part of Bromley. Each neighbourhood has its own conservation context and dominant housing stock — click through for area-specific guidance.

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