SE21 · Dulwich Village & West Dulwich
SE21 covers Dulwich Village and West Dulwich in Southwark (with a Lambeth edge). Village and estate conservation areas mean full applications and careful roof and materials design on many streets; outside them the terrace stock still extends under permitted development. The Residential Design Standards SPD sets expectations either way.
Location data: postcodes.io · Constraints: planning.data.gov.uk (borough-level) · Open Government Licence
Constraint context · Southwark
Real · planning.data.gov.ukSouthwark has 55 designated conservation areas and 371 Article 4 areas. A district is too coarse to say which apply to your house — postcode districts span many streets and SE21 crosses 2 boroughs. Enter a full postcode below for the point-level check, or read the full borough picture on the Southwark planning guide.
Is SE21 in a conservation area?
Partly — and which part matters. A postcode district is never uniformly designated: SE21 contains 6 conservation areas within 1km of its centre, and whether your own property sits inside one decides whether permitted development survives. The centre point of SE21 itself falls inside Dulwich Village.
| Dulwich Village | At the centre |
| Dulwich Wood | Nearby |
| Lancaster Avenue | Nearby |
| Park Hall Road | Nearby |
| Rosendale Road | Nearby |
| West Norwood | Nearby |
Conservation areas whose official geometry lies within 1km of the centre of SE21. 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 SE21?
Yes — SE21 has 7 Article 4 directions mapped within 1km of its centre. An Article 4 direction withdraws specific permitted-development rights on the streets it covers, which is the most common reason a project that looks like permitted development turns out to need a full application. The centre point of SE21 does not fall inside one, but coverage is street-level — verify your own address.
| ALLEYNS HEAD | Nearby |
| Dulwich Village Local Town Centre | Nearby |
| Great North Wood | Nearby |
| Modified Direction 2 - KIBAs and WNCBC | Nearby |
| PARK HALL ROAD | Nearby |
| Protected shopping frontage SF49: Croxted Road and Park Hall Road | Nearby |
| Railway Arches | Nearby |
Article 4 directions whose official geometry lies within 1km of the centre of SE21. Source: planning.data.gov.uk · Open Government Licence. The national dataset omits some property-specific directions — the council register is always definitive.
Every designation in the borough: Southwark planning guide →
Do you need planning permission in SE21?
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 |
SE21 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 SE21?
| 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 Southwark — 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 Southwark
Camberwell, Peckham and Dulwich terraces extend constantly; outside the conservation areas PD or prior approval often carries it.
Rear extension in Southwark →The Camberwell and Peckham terraces are classic side-return stock; match the consented depth on your run.
Side return extension in Southwark →Rear-dormer lofts are common on the Camberwell and Dulwich terraces; protected rooflines are the refusal zone.
Loft conversion in Southwark →Controlled through conservation-area and listed-building policy; ground and water conditions drive the cost.
Basement extension in Southwark →Garden offices are popular on the Dulwich and Camberwell terraces; respect the 2.5m boundary-height and 50% coverage rules.
Garden room in Southwark →Pinpoint your street
More of Southwark
Listed riverside to Victorian terrace inland; an unusually pub-heavy Article 4 regime.
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.