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Free 2026 London Planning Report — Coulsdon CR5

Loft bedroom with a sloping white ceiling, roof windows, a double bed with a dark headboard and a pendant lamp
CR5 · Coulsdon · Croydon

Planning and building regulation drawings in Coulsdon (CR5)

Coulsdon has two layers. The older one is the village core around Bradmore Green and Grange Park in Old Coulsdon, where the buildings gather around an open green and keep an older village character. The newer layer wraps round it: the interwar and 1930s semi-detached houses that make up much of CR5. Coulsdon Road, Bradmore Way, Canons Hill and Fairdene Road are among the district's streets. Many of the semis have room at the side and the back, which leaves scope for extensions and lofts.

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  • Croydon Council granted 87% of 805 householder applications
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The two layers are judged by different yardsticks. On the semis, the questions are practical: how deep a rear extension can go, whether a side addition keeps a sensible gap, what a rear dormer does to the roof line and how the new work matches the brick and tile of the original. Near the green the question becomes character. Bradmore Green Conservation Area protects the open space and the buildings around it, so changes that face the green are weighed for their effect on how the place looks.

Because the pattern shifts from street to street, a drawing that suits one house can be wrong for the next. We start with the address, its conservation status and its neighbours, and only then choose the route.

Planning in Coulsdon: what to know before you apply

Croydon looks at Coulsdon applications against the established pattern of the street. Outside the conservation area, a house keeps its householder permitted development rights, so a rear extension or loft may not need a full application, although limits on size and height still apply and we check them. Inside Bradmore Green Conservation Area, roof enlargements, side extensions and rear extensions of more than one storey are not permitted development, and the council assesses external alterations for their effect on character, especially where they face the green. Scale and roof form are judged against the established pattern, which differs between the village core and the semi-detached roads around it. Croydon has an Article 4 direction on HMO conversions, but sources differ on whether it covers the whole borough or only designated wards, so anyone planning a shared house for three to six unrelated people should let us confirm it. Flats have no householder rights.

Applications are decided by Croydon Council — its planning pages.

Check your route

Does your Coulsdon project need planning permission?

Route check · Coulsdon (CR5)

Listed building?
Conservation area?
Likely permitted development — no planning applicationNeeds checking
  • A single-storey rear extension up to 4 m deep on a detached house, or 3 m on any other house, is Class A permitted development subject to the height and materials conditions.
  • An Article 4 direction applies here and may withdraw this freedom — the schedule must be checked before relying on it.
  • One or more constraints are unknown — we check the council's registers as part of the free appraisal.
  • Where permitted development applies, a lawful development certificate proves it for lenders and buyers.

Sources: GPDO 2015, Schedule 2, Part 1 · Planning Portal — common projects · Building Regulations 2010 — when approval is needed

This is a first-pass indication from the national rules, not planning advice for your property. Your council's registers, any Article 4 schedule and the exact dimensions decide it — the free appraisal checks all three before we recommend a route.

Confirm it with a free appraisal

Coulsdon (CR5) in numbers

What Croydon Council has decided, and what CR5 is built of — the two facts that shape every job here.

Householder planning decisions — Croydon Council

Coulsdon (CR5) applications are decided by Croydon Council; these are its published householder figures for the last four quarters.

Householder applications decided2025 Q2 to 2026 Q1805
Granted703
Refused102
Grantedof 805 decisions · England 90%87%
Decided within 8 weeksof 530, excluding prior approvals95%

Source: Ministry of Housing, Communities and Local Government (PS2 district planning application statistics). Open Government Licence v3.0 Extracted 2026-09-22.

Permitted development prior approvals — Croydon Council

How the larger-home-extension route has fared with Croydon Council, which decides CR5 notifications.

Larger home extension prior approvals — not required2024 Q2 to 2026 Q1155
Prior approval granted143
Prior approval refused56
Grantedof 199 determined72%

Source: Ministry of Housing, Communities and Local Government (PS1 district planning application statistics). Open Government Licence v3.0 Extracted 2026-09-22.

Planning appeals — Croydon Council

Refusals in CR5 can be appealed to the Planning Inspectorate; this is Croydon Council's householder appeal record.

Householder appeals determined2021–2026289
Allowed115
Allowedof 289 · England 36%40%

Source: Planning Inspectorate appeals casework. Open Government Licence v3.0 Extracted 2026-09-22.

Conservation areas and Article 4 directions — Croydon Council

Register counts for Croydon Council. A count describes what the council has published, never a rank against another council.

Conservation areas in the register9 dated, 2006–200820

Source: MHCLG Planning Data Platform. Open Government Licence v3.0 Extracted 2026-09-22.

What CR5 is built of

Residential building form across Coulsdon (CR5), from 336 classified buildings — the fact that decides party walls, side returns and loft headroom before any policy does.

Attached on more than one side23%
Attached on one side44%
Detached33%
Median building footprint81 m²
Addresses per buildingAbove about 2 means flats and maisonettes dominate1.12
Buildings classified336

Source: Ordnance Survey National Geographic Database (derived statistics). Contains OS data © Crown copyright and database right 2026. Contains Royal Mail data © Royal Mail copyright and database right 2026. Extracted 2026-09-22.

  1. Day 0Measured survey of your Coulsdon property — or your existing plans if you have them.
  2. About 7 daysDrawings issued for your approval. Free redraws until you are happy.
  3. SubmissionWe validate against Croydon Council’s checklist and submit on your behalf.
  4. Council: 8-week targetHouseholder applications carry an 8-week statutory target. Croydon Council decided 95% of 530 recent householder applications inside it.

Source: Ministry of Housing, Communities and Local Government (PS2 district planning application statistics). Open Government Licence v3.0 Extracted 2026-09-22.

Neighbourhoods

Streets and neighbourhoods in CR5

FAQ

Coulsdon (CR5) — FAQs

Can I add a loft conversion to a 1930s semi in Coulsdon?+
If the house is outside the conservation area, it can use permitted development for a rear dormer or roof windows, within the volume and design limits. Hip-to-gable work and larger dormers need careful checking against those limits, and any house inside Bradmore Green Conservation Area needs a full application for a roof enlargement.
I live near Bradmore Green. What changes for me?+
If your house is inside the conservation area, the council must consider the area's character, so work that faces the green is judged on its effect on it. Side extensions, roof enlargements and rear extensions of more than one storey need planning permission there. We confirm whether your property is inside the boundary before advising.
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