
Do You Need Planning Permission For A House Extension?
May 25, 2026
Rear Extension vs Wraparound Extension
May 25, 2026Planning permission is often the biggest source of uncertainty for homeowners. While many London extensions can be built under Permitted Development (PD) rights, the rules are nuanced and depend entirely on your specific property.

Permitted Development vs. Planning Permission
Many single-storey extensions fall under Permitted Development, allowing you to bypass a full application. However, these rights are restricted in Conservation Areas or for Listed Buildings.
The Building Regulations Requirement
Even without planning permission, you must comply with Building Regulations. This covers structural safety, insulation, and fire safety. MBT Group ensures your project remains compliant from day one.




