Planning permission in Hammersmith & Fulham isn't a single rulebook — it's a patchwork of overlapping restrictions that shift street by street, sometimes house by house. Most homeowners don't realise how many layers apply to their specific property until they're already mid-project. The best way to start is to find out which constraints actually apply to your address — free, takes about a minute.
The short version
- Conservation areas, Article 4 Directions, and flood zones all narrow what you can do without permission in H&F
- The rules aren't uniform — your neighbour's extension doesn't mean yours is automatically fine
- A £548 householder application fee and 8-week decision window are at stake if you get it wrong
Conservation areas cover more of the borough than most people expect
Hammersmith & Fulham has a high concentration of conservation areas — Barons Court, Hurlingham, Fulham Palace, Old Oak and Wormholt, and others. If your property sits within one, work that would be routine elsewhere can suddenly require permission. We're talking about changes to windows, rooflines, outbuildings, even some external materials. The tricky part? The boundary of a conservation area doesn't always follow obvious lines. A terrace of identical houses can straddle the edge, with completely different rules applying to each end.
Article 4 Directions are where homeowners get caught out
This is where things get genuinely complicated. Article 4 Directions remove permitted development rights — the automatic allowances that let you build certain things without applying. In Hammersmith & Fulham, these Directions are widespread across Victorian and Edwardian terraces, and they specifically target things like window replacements and front-door alterations. That means work you'd assume is entirely routine can require a full planning application and the £548 fee that comes with it. The best way to know whether an Article 4 Direction applies to your specific property is to check what restrictions are actually attached to your address.
Flood zones
Properties along the Thames frontage in W6 and SW6 sit in active flood zones. This adds another layer of assessment to any planning application and can affect what's permissible — even for smaller projects.
Listed buildings and the Fulham Palace heritage area
Listed buildings are concentrated around Hammersmith Bridge and the Fulham Palace heritage area. If your property is listed — or even close to one — the constraints go beyond standard planning rules. Listed building consent is a separate process entirely, and what counts as an alteration is interpreted very broadly. Most homeowners in these pockets have no idea how far the restrictions extend until they ask.
Why your neighbour's project tells you almost nothing about yours
This is the mistake that costs people time and money. You've seen an extension on the next street, or a loft conversion two doors down, and assume the same rules apply to you. They might not. Conservation area boundaries, Article 4 coverage, flood zone edges, and listed building curtilages all create micro-variations that make individual property checks essential — not optional.
Knowing you're in a conservation area is one thing. Knowing what that means for your specific extension, your specific loft, your specific front door — that's the hard part. WhatCanIBuild pulls together the approval and refusal record for projects near your street, so you can see what similar projects on your road actually got approved and what that means for your odds — free, no signup needed.
These rules vary by property
Conservation areas, Article 4 directions, and other constraints can change everything. Check what actually applies to your address.
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