Permitted development or planning?
Many rear dormers and loft conversions on houses fall under permitted development, within volume and design limits. Planning permission is usually needed for:
- Dormers on a roof slope facing the road
- Roof extensions that raise the ridge
- Properties in conservation areas, or listed buildings
- Flats and maisonettes
We'll tell you which applies, and apply for a lawful development certificate if you want certainty.
Designing the space
Headroom, the staircase and the structure decide what's possible in a loft. Our measured survey records the roof accurately, so the design works from the start. We then show you the finished rooms in 3D.


Who'll handle your project: Benjamin Plunkett, our Managing Director and Planning & Heritage Consultant, is your point of contact from the first site visit to the decision. Charlie Plunkett MCIAT produces the drawings.
About us






