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

Submitting a planning application in Durham feels straightforward until you start digging. The county covers an enormous area — from former pit villages in the east to remote Pennine farms in the west — and the rules that apply to one property can be completely different from those applying to a house two streets away. WhatCanIBuild exists precisely for this reason: to show you what's actually been approved and refused for properties like yours, not just the general framework.

Durham's heritage coverage is wider than most people realise

Ninety-two conservation areas across a single county is a lot. That's not just Durham City centre — it covers market towns, former colliery villages, and rural settlements across the county. If your property sits within one, external alterations that would be unremarkable elsewhere can become a full planning application rather than something you can do without permission at all.

And conservation area status is just the starting point. Durham also has 3,136 listed buildings. Being adjacent to a listed building — not even in one — can affect what you're permitted to do. Most homeowners don't realise their project could be caught by that until they're already mid-process.

The World Heritage Site and AONB boundaries change everything near them

Durham Castle and Cathedral, the Frontiers of the Roman Empire (Hadrian's Wall) World Heritage Site, and the North Pennines AONB all cut through or border the county. Properties that fall on Article 1(5) land — typically within or adjacent to these designations — have their permitted development rights restricted in ways that catch people off guard.

The tricky part? The boundary isn't always obvious from the street. A terrace of identical houses could have different planning rules depending on which side of a designation line they fall. It depends on your property, not your postcode.

Approval odds aren't just about what you're building — they're about where

Durham County Council typically decides householder applications within 8 weeks, and the £548 application fee is non-refundable whether you're approved or not. That makes it worth understanding your realistic odds before you apply, not after.

The factors that actually move the needle — what's been approved on your street, how the council has handled similar projects near heritage assets, whether your specific combination of constraints has historically led to refusals — aren't things you can easily piece together yourself. The best way to get a clear picture is to use WhatCanIBuild, which pulls together local decision data to show you what projects like yours actually look like from an approval perspective in your part of Durham.

The question isn't just "do I need permission?" — it's "will I get it?"

Most planning guides stop at whether permission is required. That's the easy part. The harder question is what your actual approval odds are, given your property's specific location, constraints, and the local decision history around you. WhatCanIBuild is built to answer that harder question — surfacing the nearby approvals and refusals, the constraint overlaps, and the patterns that determine whether a project like yours is likely to sail through or hit resistance.