How likely is my planning application to get approved in Brent?

Plenty of homeowners in Brent assume planning permission is either straightforward or unnecessary — and plenty of them are wrong on both counts. The real question isn't just whether applications get approved in Brent generally, it's whether your application, for your project, on your street, is likely to get approved. Those are very different questions. WhatCanIBuild exists precisely because the gap between those two questions is where most homeowners come unstuck.

It's not just about the borough — it's about your postcode, your street, your property

Brent covers a wide spread of London, from NW2 and NW6 through to HA0, HA9, and beyond. What's routinely approved in one part of the borough can be refused in another. Conservation areas around Wembley and Willesden operate under a different set of expectations. If your property falls within one — or near one — the calculus changes. Most homeowners don't realise that living a few streets away from a conservation area boundary can still affect what Brent's planners will accept.

Then there are Article 4 directions. These are borough-level interventions that remove permitted development rights in specific areas, meaning projects that would normally sail through without any application at all suddenly require full permission. Do you know whether an Article 4 direction applies to your property? Most people don't, until it's too late.

What's been approved nearby matters more than you'd think

Planning decisions aren't made in a vacuum. What's been approved — and refused — on your street creates a pattern of local precedent that planners are well aware of, even if you aren't. A rear extension that sailed through three doors down could reflect something specific about those plots. A refusal two streets over might signal a local sensitivity you'd never guess from looking at the national rules.

Typical householder applications in Brent take around 8 weeks to decide and carry a fee of £258. But that timeline and cost only apply if the application goes in correctly, covers the right project type, and doesn't run into a constraint nobody flagged at the start. A poorly prepared application doesn't just get refused — it creates a decision on record that can complicate any future attempt.

The part most homeowners get wrong

The assumption that catches most people out isn't "I don't need permission" — it's "I've looked it up and I think I'm fine." The rules around what requires permission, what qualifies as permitted development, and what Brent's planners will realistically approve are layered in ways that don't resolve neatly from a general search.

The best way to understand your actual approval odds isn't to read the national guidance and hope your property is typical. It's to look at what's actually been approved and refused for properties like yours, on streets like yours, in Brent specifically. WhatCanIBuild pulls that local decision data together so you can see your real picture — not a generic one.

That means knowing not just that you're in a conservation area, but what that has actually meant for similar projects nearby. Not just that Article 4 might apply, but whether it applies to you and what that does to your options. WhatCanIBuild shows you the combination of constraints and precedents that shape your specific approval odds — the detail that no general article can give you.