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

EC

Elena Cross

Property Research

Planning Permission3 min readVerified Summer 2026

Planning permission in Somerset feels like it should be simple — you either need it or you don't, and if you apply, you either get it or you don't. But the reality is far messier than that, and most homeowners don't realise how much their individual property's history and location shapes the outcome. WhatCanIBuild exists precisely because the gap between "planning rules" and "what happens to my application" is where projects go wrong.

The short version

  • Somerset has 178 conservation areas and over 5,000 listed buildings — heritage restrictions are widespread, not exceptional
  • Multiple AONBs and Exmoor National Park create boundary zones where permitted development rights are reduced
  • Your neighbour's approval doesn't mean yours will follow — site history, constraints, and project type all matter

Somerset's planning landscape is more complicated than it looks

Somerset Council covers a vast and varied area — from the Somerset Levels to the edge of Exmoor, from market towns to rural hamlets scattered across the Quantock and Mendip Hills. That geographic variety translates directly into planning complexity. Properties near the boundaries of Exmoor National Park, the Blackdown Hills, the Cotswolds, the Mendip Hills, or the Cranborne Chase AONBs sit on what's known as Article 1(5) land. That designation quietly strips away permitted development rights that most homeowners assume they have.

The question isn't just whether you're in one of these areas — it's whether your specific address falls within a boundary that changes what you're allowed to do without permission, and what Somerset Council expects to see when you apply.

178 conservation areas means heritage restrictions are the norm, not the exception

Most people think of conservation areas as something affecting a handful of historic streets. In Somerset, 178 of them cover a significant proportion of the borough's towns and villages — places like Frome, Glastonbury, Wells, Shepton Mallet, and dozens of smaller settlements. If your property sits within one, external alterations that would be routine elsewhere require planning permission, or are assessed against tighter criteria.

But being in a conservation area tells you very little. What matters is what's been approved and refused on your street, what the character of the area is considered to be, and how similar projects have fared nearby. That's information you can't get from a council map.

Listed Buildings

Over 5,000 listed buildings are recorded across Somerset. If yours is one of them — or if you're in the curtilage of one — the rules are fundamentally different. Listed building consent operates separately from planning permission, and what applies to your property depends on its specific designation, not general guidance.

Your approval odds depend on more than the rules

The £548 householder application fee is the easy part. What's harder to predict is how Somerset Council will assess your specific proposal — and that depends on factors most homeowners never think to check. Has a similar extension on your road been refused? Has an Article 4 direction removed permitted development rights from your street? Does your site have a planning history that creates complications?

The best way to understand your actual approval odds — not just the general rules — is to see what's been decided for comparable projects on your street and in your area. WhatCanIBuild shows you exactly that: what's been approved and refused nearby, and what that means for your project's chances.

What you actually need to know before you apply

Somerset's typical decision time is 8 weeks. But applications that go in without a clear picture of local precedent, constraint overlaps, and approval patterns often don't come back with the answer homeowners were expecting. The best way to avoid that is to check your property's specific situation before you commit — not after. WhatCanIBuild gives you the local intelligence that turns a guess into a decision.

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