Do I need planning permission in Blaby?

TA

Tom Ashworth

Planning Policy

Planning Permission3 min readVerified Summer 2026

Planning permission in Blaby should be simple — but most homeowners find out the hard way that it isn't. Whether you're adding a loft conversion, building an extension, or putting up a garden outbuilding, the rules that apply to your property might be completely different from those that apply to your neighbour's. WhatCanIBuild exists precisely because those differences matter enormously.

The short version

  • Blaby has 11 conservation areas where normal rules don't apply
  • 196 listed buildings across the district face stricter controls
  • Your property's specific history and constraints shape what you can do
  • Getting it wrong can mean enforcement action, delays, or a costly application fee

Why "it's permitted development" might not apply to you

Most homeowners have heard of permitted development — the idea that certain projects don't need a full planning application. What they don't realise is how quickly that assumption unravels. Permitted development rights can be removed from individual properties, whole streets, or entire areas through something called an Article 4 Direction. You won't necessarily know one exists unless you check. And if one does apply to your property in Blaby, work you assumed was fine could actually require a full application — and a £548 fee.

The question isn't just whether permitted development exists. It's whether it applies to your property, your project, on your street.

Conservation areas and listed buildings change everything

Blaby District has 11 conservation areas. If your home sits within one of them, the rules around external alterations — cladding, windows, rooflines, boundary walls — shift significantly. Most homeowners don't realise that even minor changes to the appearance of a property can require consent inside a conservation area.

Then there are the 196 listed buildings recorded across the district. If your property is listed, or even adjacent to one, the controls go further still. Listed building consent operates entirely separately from planning permission — it's a parallel process that catches people out constantly.

The uncomfortable truth is that knowing you're near a conservation area or listed building tells you very little. What matters is exactly how those designations interact with your specific project.

Don't assume the address tells the whole story

Conservation area boundaries can cut through streets, even between semi-detached houses. Being a few doors down from a listed building can still affect what you're allowed to do.

The things that trip Blaby homeowners up most

Beyond conservation areas and listed buildings, there are flood zone designations, previous planning conditions tied to your property from decades ago, and the cumulative effect of work already done on a house — all of which affect what's permissible now. A loft conversion that's straightforward for one house in Blaby can be a complex application for the one next door, simply because of what was approved previously.

Typical decisions in Blaby take around 8 weeks. That's 8 weeks of uncertainty — and that's assuming an application is needed and submitted correctly. Starting work without checking can mean enforcement notices, retrospective applications, and complications when you eventually sell.

What you actually need to know

The best way to understand what applies to your property isn't to read general guidance — it's to look at what's actually been approved and refused for similar projects near you, and what your property's specific combination of constraints means in practice. WhatCanIBuild shows you approval patterns for your project type in your area, so you're not guessing.

Knowing you're in a conservation area is one thing. Knowing what that actually means for your loft conversion, your rear extension, or your outbuilding — on your specific plot, with your property's history — is something else entirely. That's what WhatCanIBuild surfaces, and it's the difference between starting a project with confidence and starting it with your fingers crossed.

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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