What planning rules in Richmond upon Thames catch homeowners out?

Richmond upon Thames is one of the most desirable boroughs in London. It's also one of the most complex when it comes to planning. What looks like a simple home improvement project can turn out to need permission — or be refused — for reasons that have nothing to do with the size of what you're building. WhatCanIBuild exists precisely for situations like this: where the rules on paper don't tell you what they mean for your specific address.

You might not have the permitted development rights you think you do

Most homeowners know there's something called "permitted development" — work you can do without applying for planning permission. What most homeowners in Richmond don't realise is that the council has issued Article 4 directions across significant parts of the borough. These directions remove some or all of those automatic rights, meaning work that's freely allowed elsewhere in England requires a full application here.

The catch? Article 4 directions can apply street by street, or even to individual properties. Whether yours is affected isn't something you can guess from a postcode. It's property-specific information — and getting it wrong means building without permission you were required to have.

Conservation areas are everywhere — and they don't all work the same way

Richmond upon Thames has 72 conservation areas. That's not a typo. They cover large parts of Richmond, Twickenham, Kew, Barnes, East Sheen, Ham, Petersham, and more. If your home sits within one — or even near one — the rules around what you can alter, extend, or add to the exterior change significantly.

But here's what catches people out: being in a conservation area and knowing what that means for your project are two completely different things. The restrictions aren't uniform. What was approved on the next street, or even next door, doesn't tell you what will happen with your proposal. The character of each conservation area is assessed differently, and decision-making reflects that.

The Green Belt catches more homeowners than you'd expect

A meaningful portion of Richmond upon Thames falls within the Metropolitan Green Belt. Green Belt designation doesn't mean no development is ever permitted — but it does mean the bar is higher, the justification required is more specific, and the risk of refusal is real for projects that might sail through elsewhere.

Most homeowners don't realise their property sits in or near the Green Belt until they're already mid-plan. By then, they've sometimes already spent money on architects or structural surveys for a project that faces significant headwinds.

The thing that actually matters: what's happened on your street

Knowing your constraints is step one. Step two — the part that actually tells you whether your project is likely to succeed — is understanding how the council has treated similar applications nearby. What got approved. What got refused. What conditions were attached. Whether projects like yours, on streets like yours, have a track record.

That's the kind of intelligence that changes decisions. It's also the kind you won't find by reading planning guides. WhatCanIBuild surfaces that approval history alongside your property's specific constraints, so you're not going in blind.

If you're planning anything in Richmond — an extension, a loft conversion, a outbuilding, changes to windows or doors — the best way to understand your real position is to check your specific address. Not the general rules. Your address. WhatCanIBuild tells you what the rules actually mean for where you live.