CR0 · Croydon & Addiscombe
CR0 spans Central Croydon and the Victorian streets of Addiscombe and Waddon. Conservation designation governs the protected cores; outside them much of the stock keeps permitted development rights, while the council requires planning permission to convert a house to a small HMO.
Location data: postcodes.io · Constraints: planning.data.gov.uk (borough-level) · Open Government Licence
Constraint context · Croydon
Real · planning.data.gov.ukCroydon has 22 designated conservation areas and 0 Article 4 areas. A district is too coarse to say which apply to your house — postcode districts span many streets and CR0 crosses 2 boroughs. Enter a full postcode below for the point-level check, or read the full borough picture on the Croydon planning guide.
Is CR0 in a conservation area?
Partly — and which part matters. A postcode district is never uniformly designated: CR0 contains 2 conservation areas within 1km of its centre, and whether your own property sits inside one decides whether permitted development survives. The centre point of CR0 itself does not fall inside one — but many of its streets will.
| East India Estate | Nearby |
| St Bernards | Nearby |
Conservation areas whose official geometry lies within 1km of the centre of CR0. Source: planning.data.gov.uk · Open Government Licence. Proximity to the district centre is not a statement about your own address — run the address check for that.
Does an Article 4 direction apply in CR0?
The national dataset holds no Article 4 geometry within 1km of the centre of CR0. Treat that as unknown, not as “none”. The national dataset is known to omit property-specific directions, so the only safe answer is to verify on the council's own register for Croydon before assuming a permitted-development right still exists.
Every designation in the borough: Croydon planning guide →
Do you need planning permission in CR0?
Three routes exist, and which one you are on is decided by your address, not your postcode district:
| Permitted development — no application. The work stays inside the GPDO limits and no designation removes them. A Lawful Development Certificate is cheap proof for a future buyer. | No permission |
| Prior approval — the larger single-storey rear extension route, with neighbour consultation. Not available on designated land. | 42 days |
| Full householder application — required once a designation removes your permitted-development right, or the scheme exceeds the limits. | 8 weeks |
CR0 contains mapped conservation-area or Article 4 geometry, so a meaningful share of its streets will have lost some permitted-development rights — which pushes those properties onto the full-application route. Whether yours is one of them is an address-level question, not a district-level one.
What does planning permission cost in CR0?
| Householder planning application | £548 (from 1 April 2026) |
| Lawful Development Certificate — proposed works | £274 (half the application fee) |
| Lawful Development Certificate — existing works | £548 (the full application fee) |
| Listed building consent | No fee |
| Resubmission after a refusal | Free once, within 12 months of the decision |
National statutory figures for England — councils do not set them, so they are the same in every borough. Planning fees re-index every 1 April; confirm the current amount on the Planning Portal fee calculator before you apply. These are the council's fees only — drawings, surveys and any specialist reports are separate.
How long does it take?
| Householder application — statutory target | 8 weeks |
| Householder application — in practice | 8–12 weeks |
| Prior approval (larger home extension) | 42 days |
| Lawful Development Certificate | 8 weeks |
| Householder appeal — deadline to lodge | 12 weeks from the decision date |
| Householder appeal — typical decision | Around 18 weeks |
What if it's refused?
A refusal is a decision notice with reasons attached, and those reasons are a roadmap. Most homeowners in Croydon — as anywhere in England — are better served by amending the scheme and using the free resubmission than by appealing: you get one further application on the same site within 12 months without paying again.
| Who can appeal | The applicant only — not neighbours |
| Fee to appeal | None — you bear your own costs |
| Procedure | Written representations for most householder appeals |
| Success rate | Roughly a third — about 36% of householder appeals allowed in 2025/26 |
Appeals go to the Planning Inspectorate, an independent national body. How to read a refusal and choose your route →
Planning permission by project in Croydon
Suburban Croydon stock extends under PD; the Waldrons, Webb Estate and other Article 4 conservation areas need a full application.
Rear extension in Croydon →Common on the terraces of Croydon, Addiscombe and South Norwood; the Article 4 conservation areas need a full application.
Side return extension in Croydon →Common across suburban Croydon under PD; the Article 4 conservation areas (the Waldrons, the Webb Estate) decide dormer form via a full application.
Loft conversion in Croydon →Uncommon outside the higher-value south; a full application with structural and ground-condition evidence is expected, with conservation-area scrutiny on top.
Basement extension in Croydon →Generous gardens in suburban Croydon suit garden rooms under PD; the Article 4 conservation areas can remove outbuilding rights — verify the direction.
Garden room in Croydon →Pinpoint your street
More of Croydon
Tower-block town centre to the Webb Estate; targeted conservation-area Article 4s.
Borough page →Planning Permission Checker provides planning and cost intelligence for early feasibility only. It is not legal, planning, valuation, architectural, structural, or surveying advice. All estimates are indicative and must be verified by qualified professionals before purchase, design, planning submission, or construction.
Cost estimates are indicative only — not a quotation. Final price depends on survey, specification, structure, access, party wall matters, VAT, professional fees, and contractor availability.
Planning outcomes are not guaranteed. Local planning authorities make final decisions.