Are you building a single storey rear extension under your permitted planning rights? Did you know you can now double its size allowance under the Larger Home Extension Scheme?
- Extensions up to 8 metres (from 4 metres) for a detached house
- Extension up to 6 metres (from 3 metres) for all other houses.
Previously, this scheme only applied to projects completed before the end of May 2019 but it’s now been made permanent.
What is permitted development?
Permitted development is a type of pre-approved permission to build. This allows you to bypass the main planning process, providing your proposed design falls within the government’s guidelines.
You should still apply to your council for a lawful development certificate. This will prove your development is within the conditions provided. If your plans fall within the scheme, it could save time and potential complications when applying for full planning application.
Does my single storey rear extension qualify?
You’ll need to ensure your plans extend no more than 8 metres (for a detached property). Then it’s 6 metres (for all other properties). These measurements are from the rear elevation of the original house, as it stood on 1 July 1948.
Even if you haven’t built an extension yourself, your development rights may already be used if a previous owner extended.
The development must also comply with other conditions that apply to all rear extensions allowed under permitted development.
- No more than half the area of land around the original house (as it stood on 1 July 1948) can be covered by buildings.
- The maximum height of the extension is 4 metres, as measured from the highest point of natural surface ground. The maximum height reduces to 3 metres if the extension is within 2 metres of a boundary.
- Construction materials must be similar in appearance to those used for the existing house. No balconies, verandas, raised platforms or chimneys are included.
- As with any other kind of permitted development, this scheme does not apply to homes in conservation areas, flats or maisonettes.
What is the Neighbour Consultation Scheme?
The Neighbour Consultation Scheme is the approval process for extensions built under the Larger Home Extension Scheme. Once the plans are with the council, your neighbours will be invited to raise any objections within 21 days.
If the development complies with all of the relevant criteria under permitted development rights, and the Larger Home Extension Scheme, you will be notified by the council within 42 days. You may then start building, potentially under certain additional conditions.
If your application is refused, you can appeal, and we’ll advise you on the best next steps.
Building Regulation Approval will be required for the extension and detailed plans will be submitted to get this approval.