W14 · West Kensington & Olympia
W14 covers the Olympia and Avonmore, Barons Court and Queen's Club Gardens conservation areas and a high share of mansion-block flats. Flats have no permitted development rights, so most works need an application; the borough-wide Article 4 brings every basement under planning control.
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 W14 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 W14 in a conservation area?
Partly — and which part matters. A postcode district is never uniformly designated: W14 contains 19 conservation areas within 1km of its centre, and whether your own property sits inside one decides whether permitted development survives. The centre point of W14 itself falls inside Olympia and Avonmore.
| 3B | Nearby |
| Barons Court | Nearby |
| Brook Green | Nearby |
| Dorcas Estate | Nearby |
| Edwards Square/Scarsdale & Abingdon | Nearby |
| Fitzgeorge and Fitzjames | Nearby |
| Gunter Estate | Nearby |
| Hammersmith Broadway | Nearby |
| Hammersmith Odeon | Nearby |
| Holland Park | Nearby |
| Kensington | Nearby |
| Lakeside/Sinclair/Blythe Road | Nearby |
| Lexham | Nearby |
| Melrose | Nearby |
| Nevern Square | Nearby |
| Olympia and Avonmore | At the centre |
| Philbeach | Nearby |
| Queen's Club Gardens | Nearby |
| Turneville/Chesson | Nearby |
Conservation areas whose official geometry lies within 1km of the centre of W14. 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 W14?
Yes — W14 has 8 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 W14 does not fall inside one, but coverage is street-level — verify your own address.
| Article 4 - No 100 | Nearby |
| Article 4 - No 106 | Nearby |
| Article 4 - No 30 | Nearby |
| Article 4 - No 31 | Nearby |
| Article 4 - No 40 | Nearby |
| Article 4 - No 75 | Nearby |
| Article 4 - No 76 | Nearby |
| Article 4 - No 8 | Nearby |
Article 4 directions whose official geometry lies within 1km of the centre of W14. 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: Hammersmith and Fulham planning guide →
Do you need planning permission in W14?
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 |
W14 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 W14?
| 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.
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