Conservation Areas (UK): Rules, Consent & What You Can Do

Article review and update information:
Last updated: September 24, 2025

Published: September 24, 2025

✅ Reviewed by Stuart Cronshaw   

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If you live in or near a Conservation Area, you’ll need to follow extra planning rules. This guide explains what Conservation Areas are, what you can and can’t do, when consent is required, and how local council quirks can affect your project.

Summary: Conservation Areas are designated by local councils to protect historic or special character. Extra planning restrictions apply, and in many cases you’ll need Conservation Area Consent in addition to normal planning permission. This guide covers the key rules, costs, and local quirks you need to know before starting work.

What is a Conservation Area?

A Conservation Area is a zone designated by a local authority for its special architectural or historic interest. These areas protect the character of towns, villages, and neighbourhoods from inappropriate development. In England, over 10,000 Conservation Areas have been identified, ranging from city centres to rural hamlets.

Note: Living in a Conservation Area doesn’t stop you from improving your property, but it does mean councils will carefully control changes to ensure the character of the area is preserved.

Rules & Restrictions

Compared to standard planning rules, Conservation Areas place tighter controls on development. Some examples include:

  • Demolition of buildings often requires permission, even for smaller structures.
  • Restrictions on altering roofs, chimneys, and cladding.
  • Stricter rules for replacement windows, doors, and external materials.
  • Trees are protected — even pruning may need council consent.
Important: Carrying out work without Conservation Area Consent is a criminal offence. Always check with your local authority before starting.

Conservation Area Consent is needed for:

  • Demolishing any building or part of a building.
  • Altering the external appearance of a property where the character may be affected.
  • Cutting down or significantly pruning trees.

Some small projects may fall under Permitted Development Rights, but these rights are often restricted in Conservation Areas.

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Common Projects in Conservation Areas

Windows & Doors

Replacing uPVC windows may not be allowed; timber sash or like-for-like styles are usually required.

Extensions & Conversions

Kitchen extensions, loft conversions, and garage conversions may need full planning permission, even if they’d normally fall under PD elsewhere.

See our guides:

Outbuildings & Sheds

Garden rooms and sheds are often restricted in terms of size, height, and position. See our guide: Planning Permission for a Shed.

Council Quirks & Local Variations

Every council applies rules slightly differently. For example:

  • Some councils insist on timber windows only, others allow slimline aluminium.
  • Tree works may require six weeks’ notice even for light pruning.
  • Boundary walls and railings are often protected.
Tip: Always review your council’s Conservation Area Appraisal document — it sets out the exact character features they aim to protect.

Costs & Timelines

There is no extra fee for Conservation Area Consent itself, but you’ll pay the standard planning application fees if a full application is required. Timelines are usually:

  • 8 weeks — standard decision period for householder applications.
  • Longer if applications require design revisions or committee approval.

FAQs: Conservation Areas

What does Conservation Area mean?

An area designated by the council for its special architectural or historic interest, where extra planning rules apply.

What can you not do in a Conservation Area?

You can’t demolish buildings, remove trees, or replace windows/doors without consent. Councils tightly control materials and designs.

Is Conservation Area Consent different from Planning Permission?

Yes — consent relates specifically to demolition or alterations affecting character. You may need both consent and full planning permission.

Does Conservation Area Consent still exist?

Yes, although in many cases it is now part of the wider planning application process. Always confirm with your local council.

Who is responsible for Conservation Areas?

Local councils designate and enforce Conservation Areas. National guidance is available via the Planning Portal.

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Next Steps & Useful Guides

Stuart Cronshaw – Plans Made Easy

Written & Reviewed by Stuart Cronshaw

Stuart is the founder of Plans Made Easy and an experienced architectural consultant with over 30 years in planning drawings, building regulations, and residential development. He has prepared hundreds of successful applications across the UK, helping homeowners get projects approved quickly and with confidence.

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