Planning permission guide

This is a practical guide to planning issues for common home-energy upgrades in England. Many domestic installations are allowed under permitted development rules, but that does not mean every property or every location is covered automatically.

Use this page as a starting point, not the final word

Planning rules can depend on the property type, location, and exact installation details. Before work starts, check the latest official guidance and speak to your local planning authority if there is any uncertainty.

Questions to ask before you order anything

  • Is the property listed, in a conservation area, or in another designated location?
  • Is the property a flat or maisonette rather than a house?
  • Will external equipment be visible from the street or close to a boundary?
  • Does the installer need to provide a noise or siting assessment?
  • Are there separate building-regulations or DNO requirements in addition to planning?

Heat pumps

For houses in England, an air source heat pump can often be installed without a full planning application if it meets the relevant permitted-development conditions. In practice, the points that most often matter are:

  • where the outdoor unit is placed
  • whether noise and siting rules are satisfied
  • whether the property is listed or in a sensitive location

If you live in a flat, listed building, or a sensitive area, check early rather than assuming the standard route applies.

Solar panels

Roof-mounted solar is often simpler than many households expect, but placement still matters. Before installation, check:

  • whether the panels project beyond the roof in a way that may trigger concern
  • whether the building is listed or in a restricted area
  • whether a ground-mounted array would need a different planning approach

Ground-mounted systems, outbuildings, and visible heritage-sensitive locations usually need extra care.

Listed buildings and conservation areas

If your property is listed, in a conservation area, or otherwise protected, contact the local planning authority before committing to equipment, layout, or supplier. Internal changes can also require consent in heritage contexts.

Planning is not the only approval path

Even if planning permission is not required, you may still need to consider:

  • building regulations
  • DNO notification or approval for electrical export equipment
  • leaseholder, freeholder, or management-company permissions
  • warranty or insurance implications

Good practice before work begins

  • Ask the installer to explain the siting and any assumptions in writing.
  • Keep copies of specifications, drawings, and approval emails.
  • If an installation depends on permitted development, keep the evidence that supports that conclusion.

Written by NetZeroNow Editorial Team | Last updated on 2026-03-30