Planning permission in Mid Devon isn't a simple yes or no — and most homeowners only discover that after they've already committed to a project. With around 2,590 listed buildings across the district, patches of Dartmoor National Park, and the Blackdown Hills National Landscape pressing in from the east, the variables stack up fast. WhatCanIBuild was built for exactly this kind of complexity — giving you answers based on your actual property, not general rules.
The short version
- Mid Devon contains listed buildings, National Landscape land, and Dartmoor National Park boundaries — all of which change what you can build without permission
- Permitted development rights — the rights that let you build without applying — can be stripped away by Article 4 directions on individual streets or areas
- A £548 application fee and an 8-week decision window are waiting if you get this wrong
Your postcode is just the beginning
Mid Devon covers a wide and varied district — EX16 in Tiverton feels very different from EX5 near the Exeter fringe or TA4 nudging into Somerset. But proximity to a boundary or a designated area isn't something you'll spot on a standard map. Properties on the edge of the Blackdown Hills National Landscape fall under Article 1(5) land, where permitted development rights are noticeably more restricted. The same applies near Dartmoor. Most homeowners don't realise their property is affected until they're already mid-project.
Listed buildings and conservation areas aren't obvious
With around 2,590 listed buildings recorded across Mid Devon, the chances that your property — or a neighbouring one — carries some form of designation are higher than you'd think. And it's not just listed buildings themselves. Works near a listed structure, or within a conservation area, can require consent even when the project looks entirely routine. A rear extension that would be perfectly straightforward on one street might need full planning permission on the next. That's not an exaggeration — it genuinely depends on your property.
Don't assume permitted development covers you
Permitted development rights can be removed by Article 4 directions, which apply to specific streets or areas — not just whole towns. Your neighbour building without permission doesn't mean you can.
The things that actually catch people out
It's rarely the big, obvious projects that cause problems. It's the loft conversion that tips over an invisible threshold, the outbuilding that sits just inside a protected boundary, or the side extension on a corner plot that triggers different rules entirely. Flood zones add another layer across parts of Mid Devon that aren't always obvious from the address alone. None of these are things you can reliably assess without knowing what designations, directions, and restrictions are attached to your specific property.
The best way to understand what's really going on with your property isn't to read general guidance — it's to check what's actually been approved and refused nearby, and what your specific combination of constraints means for your project. WhatCanIBuild pulls together that local approval data so you can see how similar projects on similar streets have fared, not just what the rules say in theory.
Before you speak to a builder
A £548 application fee is one thing. Submitting an application that was always going to be refused — because of something that was knowable beforehand — is another. The best way to avoid that is to understand your property's specific planning history and constraints before any plans are drawn up. WhatCanIBuild gives you that picture in minutes, not weeks.
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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