Architectural drawings in SE20

Which SE20 postcodes does this drawing package service cover?

Every SE20 postcode district we draw in, the stock that dominates it and the authority that validates a drawing package there. SE20 fees below are the statutory England rates for 2026, not drawing package estimates.

What changes about a drawing package in each part of SE20?

Roof pitch, wall build-up and plot depth change every few SE20 streets, and each one changes what a drawing package can achieve at that address.

• Inside SE20: Penge (SE20) — a drawing package in Penge starts from victorian and edwardian terraces, and Penge reads as Victorian and Edwardian terraces. in SE20. Bromley Council assesses Penge architectural drawings against its own Penge character guidance, and the location plan we draw for Penge references Penge East station.
• Bordering SE20: Bromley (BR1, BR2) — Victorian and Edwardian centre defines Bromley, where victorian terraces, edwardian villas, post-war flats set what a drawing package can do. Any Bromley drawing package is validated by Bromley Council, with Bromley High Street the usual Bromley reference point on the site plan.
• Bordering SE20: Beckenham (BR3) — drawing package work in Beckenham means edwardian villas, 1930s semi-detached. Beckenham is Edwardian villas, 1930s semi-detached. Bromley Council decides the Beckenham application, and Beckenham Junction anchors the Beckenham location plan.
• Bordering SE20: Chislehurst (BR7) — a drawing package in Chislehurst starts from 1930s detached, edwardian villas, and Chislehurst reads as Large 1930s detached, conservation. in BR7. Bromley Council assesses Chislehurst architectural drawings against its own Chislehurst character guidance, and the location plan we draw for Chislehurst references Chislehurst Caves.
• Bordering SE20: Bickley (BR1) — 1930s detached, conservation defines Bickley, where 1930s detached, edwardian villas set what a drawing package can do. Any Bickley drawing package is validated by Bromley Council, with Bickley station the usual Bickley reference point on the site plan.
• Bordering SE20: Orpington (BR5, BR6) — drawing package work in Orpington means 1930s semi-detached. Orpington is 1930s semi-detached, post-war. Bromley Council decides the Orpington application, and Orpington High Street anchors the Orpington location plan.
• Bordering SE20: Petts Wood (BR5) — 1930s semi-detached, garden suburb defines Petts Wood, where 1930s semi-detached set what a drawing package can do. Any Petts Wood drawing package is validated by Bromley Council, with Petts Wood station the usual Petts Wood reference point on the site plan.
• Bordering SE20: West Wickham (BR4) — drawing package work in West Wickham means 1930s semi-detached. West Wickham is 1930s semi-detached. Bromley Council decides the West Wickham application, and West Wickham station anchors the West Wickham location plan.
• Bordering SE20: Biggin Hill (TN16) — 1930s semi-detached, rural fringe defines Biggin Hill, where 1930s semi-detached set what a drawing package can do. Any Biggin Hill drawing package is validated by Bromley Council, with Biggin Hill Airport the usual Biggin Hill reference point on the site plan.
• Bordering SE20: Keston (BR2) — Edwardian and 1930s village defines Keston, where edwardian villas, 1930s semi-detached set what a drawing package can do. Any Keston drawing package is validated by Bromley Council, with Keston Ponds the usual Keston reference point on the site plan.

How do conservation areas and Article 4 affect a drawing package in SE20?

How designation changes a SE20 (Anerley / Penge) drawing package: Bromley Council maintains 48 conservation areas, including Keston, Bickley, Bromley Town. Inside any of them a SE20 (Anerley / Penge) drawing package cannot rely on permitted development, and the route becomes a £548 householder application determined in 8 weeks rather than a £249 prior approval in 6 weeks. Bickley sets the tone for SE20 (Anerley / Penge) casework.

SE20 (Anerley / Penge) permitted development status: there is no borough-wide direction from Bromley Council, so a drawing package at a SE20 address is normally still permitted development. We certify that with a £274 Lawful Development Certificate rather than leaving a SE20 (Anerley / Penge) sale to argue it later.

SE20 (Anerley / Penge) 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. Largest London borough by area; substantial Green Belt; conservation areas in most town centres; generally permissive elsewhere. Read that before choosing a drawing package route in SE20 (Anerley / Penge) — construction, not postcode, sets what is achievable. Bromley Council charges £548 for a householder application and has 8 weeks to determine it.

How designation changes a SE20 (Anerley / Penge) drawing package: Croydon Council maintains 24 conservation areas, including Purley, Shirley Park, South Norwood. Inside any of them a SE20 (Anerley / Penge) drawing package cannot rely on permitted development, and the route becomes a £548 householder application determined in 8 weeks rather than a £249 prior approval in 6 weeks. Shirley Park sets the tone for SE20 (Anerley / Penge) casework.

SE20 (Anerley / Penge) permitted development status: there is no borough-wide direction from Croydon Council, so a drawing package at a SE20 address is normally still permitted development. We certify that with a £274 Lawful Development Certificate rather than leaving a SE20 (Anerley / Penge) sale to argue it later.

SE20 (Anerley / Penge) housing stock: Victorian villas in Upper Norwood and Crystal Palace; Edwardian terraces in Thornton Heath and Selhurst; 1930s semi-detached in Purley and Coulsdon; post-war in Croydon central. Large, mixed-density outer borough; permissive in outer areas; heritage controls in conservation pockets; major regeneration in central Croydon. Read that before choosing a drawing package route in SE20 (Anerley / Penge) — construction, not postcode, sets what is achievable. Croydon Council charges £548 for a householder application and has 8 weeks to determine it.

Who decides a drawing package on the edge of SE20?

• Croydon — adjoining SE20 (Anerley / Penge), with 24 conservation areas centred on CR0. A drawing package on the far side of the SE20 (Anerley / Penge) line is determined by Croydon Council, so the SE20 (Anerley / Penge) quote for architectural drawings is checked against Croydon guidance before it is issued.
• Southwark — adjoining SE20 (Anerley / Penge), with 43 conservation areas centred on SE1. A drawing package on the far side of the SE20 (Anerley / Penge) line is determined by Southwark Council, so the SE20 (Anerley / Penge) quote for architectural drawings is checked against Southwark guidance before it is issued.
• Lewisham — adjoining SE20 (Anerley / Penge), with 30 conservation areas centred on SE3. A drawing package on the far side of the SE20 (Anerley / Penge) line is determined by Lewisham Council, so the SE20 (Anerley / Penge) quote for architectural drawings is checked against Lewisham guidance before it is issued.
• Greenwich — the Greenwich boundary runs against Bromley, so a drawing package a street from SE20 (Anerley / Penge) is decided by Greenwich Council instead. Greenwich runs 20 conservation areas across SE3 and its neighbours, which is why architectural drawings priced for SE20 (Anerley / Penge) are re-checked against Greenwich policy whenever the SE20 (Anerley / Penge) address sits on that edge.
• Sutton — the Sutton boundary runs against Croydon, so a drawing package a street from SE20 (Anerley / Penge) is decided by Sutton Council instead. Sutton runs 17 conservation areas across SM1 and its neighbours, which is why architectural drawings priced for SE20 (Anerley / Penge) are re-checked against Sutton policy whenever the SE20 (Anerley / Penge) address sits on that edge.
• Merton — the Merton boundary runs against Croydon, so a drawing package a street from SE20 (Anerley / Penge) is decided by Merton Council instead. Merton runs 28 conservation areas across SW16 and its neighbours, which is why architectural drawings priced for SE20 (Anerley / Penge) are re-checked against Merton policy whenever the SE20 (Anerley / Penge) address sits on that edge.
• Lambeth — cross the SE20 (Anerley / Penge) boundary and Lambeth Council takes the drawing package instead, applying 64 conservation areas of its own around SE1. We re-price architectural drawings at the SE20 (Anerley / Penge) edge because Lambeth policy and Croydon policy rarely align on drawing package depth.
• Bromley — the Bromley boundary runs against Croydon, so a drawing package a street from SE20 (Anerley / Penge) is decided by Bromley Council instead. Bromley runs 48 conservation areas across BR1 and its neighbours, which is why architectural drawings priced for SE20 (Anerley / Penge) are re-checked against Bromley policy whenever the SE20 (Anerley / Penge) address sits on that edge.

Sources for this SE20 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.