The brief
Rescue a stalled extension and bring the finished form back within Permitted Development limits as a single-storey rear addition.
What made it tricky
- Drainage conflicts discovered mid-build
- Restricted access
- Need to confirm PD depth and eaves height after poor documentation
Planning route
We audited the build against Class A PD thresholds (single-storey rear depth, eaves height near the boundary, and matching materials) and documented compliance for certainty.
Design + build approach
We completed a modest single-storey rear shell with matching materials, coordinated drainage, and reset the programme to a PD-compliant finish.




