How to check if a property is in a conservation area
Three quick ways to find out whether a house or piece of land falls within a conservation area in England, and what it means for your plans, your trees and your permitted development rights.
Checking a specific site?
Check a site free: your council, whether you are in a conservation area, and a basic flood check. The £9.99 site report covers everything else we can check.
Postcode, address or grid reference. England, Wales and Scotland. Free check, then the site report is £9.99, one-off.
Whether you are buying a house, planning an extension, or thinking about replacing your windows, one of the first things to check is whether the property is in a conservation area. There are more than 10,000 conservation areas in England, covering parts of nearly every town and city, and the designation changes what you can do without planning permission.
This guide is about England. Wales and Scotland also have conservation areas, but the consent rules differ, so check with the council there.
Method 1: Check the site with Planning Constraints
Check a site free shows which council covers the address and whether the point is inside a conservation area, with the boundary drawn on the map but not named. The site report (£9.99, one-off) adds the area's name, the source record and everything else we can check within 500 m of your pin, for 30 days. The report link never expires.
- Open the site checker
- Type the postcode or address into the search box
- The result shows whether the location falls inside a conservation area
- The boundary is drawn on the map, so you can see where it starts and ends
Conservation area data reaches us through planning.data.gov.uk, which depends on each council submitting its boundaries. The dataset says it "may be incomplete and not yet cover all of England", and 157 data providers had contributed when we checked on 19 October 2026. We show what we found, what came back clear, and where a source couldn't be checked. Some councils don't publish every dataset, so ask the council where it matters, especially if your property is close to a boundary.
Method 2: Check your council's website
Every local planning authority keeps records of its conservation areas. Search for "[your council name] conservation areas" and you will usually find:
- A map of all conservation area boundaries
- A list of conservation areas with their designation dates
- Conservation area appraisals, which describe what makes each area special
The council's map is the definitive source, particularly if you need an official answer. You may also find which Article 4 directions apply within the area.
Method 3: Search during a purchase
If you are buying, your solicitor will order a local authority search (CON29) after your offer is accepted. It is a formal written response from the council that covers planning designations, including conservation areas, listed buildings and tree preservation orders. Cost and turnaround vary by council and search provider, so it is not suited to quick early checks, but it gives you an official answer. Planning Constraints is not a CON29 or an official search.
What does it mean if your property is in a conservation area?
Conservation areas are designated to protect the character and appearance of places of special architectural or historic interest. If your property is in one, the main practical effects are these.
Reduced permitted development rights
Conservation areas are "Article 2(3) land", so some works that normally need no application do need one:
- Side extensions: they need householder planning permission
- Larger rear extensions: the larger home extension scheme (the 6 m and 8 m prior approval route) is not available
- Roof extensions: a loft conversion that extends the roof, such as a dormer, needs planning permission
- Cladding: you cannot add stone, render, timber, plastic or tile cladding to the outside without permission
- Solar panels: they must not go on a wall that faces a highway
- Satellite dishes: there are tighter limits on where they can go
Councils can also make an Article 4 direction that removes further rights. Read the council's own pages before you start work, or ask for a lawful development certificate to confirm what you can do.
Demolition control
Demolishing most buildings in a conservation area needs planning permission, including a building of 115 cubic metres or more, and a gate, fence, wall or railing of 1 metre or more beside a highway, waterway or open space (2 metres elsewhere). Smaller buildings are not caught, and an application for demolition alone carries no fee. Outside a conservation area, most demolition does not need permission.
Tree protection
Trees in a conservation area are protected even without a tree preservation order. You must give the council six weeks' written notice before cutting down, topping, lopping or uprooting a tree with a trunk more than 75 mm across, measured at 1.5 m above the ground. The council uses the notice to decide whether to make a tree preservation order. Carrying on without notice can lead to the same penalties as breaching an order.
Higher design standards
Applications are assessed against the need to preserve or enhance the character of the area. Materials, scale and design details get more scrutiny.
Article 4 directions
Some conservation areas have additional restrictions through Article 4 directions, which remove further permitted development rights, for example by requiring planning permission to change timber windows to uPVC or to paint the exterior of a house. How to check for an Article 4 direction explains how to find out.
What if you're not sure about the boundaries?
Conservation area boundaries can be precise. Sometimes the line runs down the middle of a street, with one side inside and the other outside. If your property is near the edge, check carefully. The map in the site checker shows the boundary data we hold, and your council's conservation officer can confirm the line.
Summary
Three ways to check whether a property is in a conservation area:
- Quickest: check a site free for membership and the boundary on the map
- Most detail: your council's conservation area pages, with appraisals and local policies
- Most formal: the local authority search during a purchase
If you are in one, some permitted development rights are restricted, demolition and tree work need consent or notice, and design standards are higher. None of that stops you making changes. It means some work needs an application that would not be needed elsewhere. Planning an extension? Check a site free and read the rules on your street before you pay for drawings.
Sources
- Planning Portal: extensions, planning permission and loft conversions, for Article 2(3) land
- The Town and Country Planning (General Permitted Development) (England) Order 2015, Schedule 2, Part 14, for solar panels on walls that front a highway in conservation areas
- Planning Portal: planning permission for relevant demolition in a conservation area
- GOV.UK: tree preservation orders and trees in conservation areas
- planning.data.gov.uk: conservation area dataset
Can you extend? Check permitted development and the rules on your street.
Check a site free for your council, whether you are in a conservation area, and a basic flood check. The site report (£9.99, one-off) adds everything else we can check within 500 m of your pin, for 30 days, with the source for each finding.
We show what we found, what came back clear, and where a source couldn’t be checked. Some councils don’t publish every dataset, so ask the council where it matters. Planning Constraints is a screening tool, not an official local authority search or professional advice.