W6 · Hammersmith & Brook Green
W6 runs from the Brook Green and Hammersmith Grove conservation areas to the riverside at Crabtree and Fulham Reach. Victorian and Edwardian terraces dominate, and the borough-wide Article 4 direction (in force since 2018) means every basement — anywhere in W6 — needs full planning permission.
Location data: postcodes.io · Constraints: planning.data.gov.uk (borough-level) · Open Government Licence
Constraint context · Hammersmith and Fulham
Real · planning.data.gov.ukHammersmith and Fulham has 48 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 W6 crosses 2 boroughs. Enter a full postcode below for the point-level check, or read the full borough picture on the Hammersmith and Fulham planning guide.
Is W6 in a conservation area?
Partly — and which part matters. A postcode district is never uniformly designated: W6 contains 20 conservation areas within 1km of its centre, and whether your own property sits inside one decides whether permitted development survives. The centre point of W6 itself does not fall inside one — but many of its streets will.
| 3B | Nearby |
| 49 | Nearby |
| Barons Court | Nearby |
| Bradmore | Nearby |
| Brook Green | Nearby |
| Castelnau | Nearby |
| Coningham and Lime Grove | Nearby |
| Crabtree | Nearby |
| Fulham Reach | Nearby |
| Gunter Estate | Nearby |
| Hammersmith Broadway | Nearby |
| Hammersmith Grove | Nearby |
| Hammersmith Odeon | Nearby |
| Hammersmith Town Hall | Nearby |
| Lakeside/Sinclair/Blythe Road | Nearby |
| Melrose | Nearby |
| Ravenscourt & Starch Green | Nearby |
| St. Peter's Square | Nearby |
| The Mall | Nearby |
| Westcroft Square | Nearby |
Conservation areas whose official geometry lies within 1km of the centre of W6. 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 W6?
The national dataset holds no Article 4 geometry within 1km of the centre of W6. 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 Hammersmith and Fulham before assuming a permitted-development right still exists.
Every designation in the borough: Hammersmith and Fulham planning guide →
Do you need planning permission in W6?
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 |
W6 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 W6?
| 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 Hammersmith and Fulham — 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 Hammersmith and Fulham
Outside the conservation areas many terraces keep PD rights; inside them, match the established depth and materials.
Rear extension in Hammersmith and Fulham →A staple on the Fulham and Brackenbury terraces; outside the conservation areas PD rights often apply.
Side return extension in Hammersmith and Fulham →Rear dormers approve on many terraces under PD; conservation-area rooflines need a full application.
Loft conversion in Hammersmith and Fulham →A borough-wide Article 4 removes basement PD rights, so every basement needs full planning permission.
Basement extension in Hammersmith and Fulham →Rear-garden rooms proceed under PD on many houses; listed curtilage and flats are the exceptions.
Garden room in Hammersmith and Fulham →Pinpoint your street
More of Hammersmith and Fulham
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.
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