Permitted development inLewes

Article 4 directions in Lewes

These remove specific permitted development rights in defined areas. Check whether your street is inside one before relying on the national limits.

Lewes District Council hasn’t published any Article 4 directions to the national planning data platform. That doesn’t mean there are none — check the council’s website (lewes-eastbourne.gov.uk).

From planning.data.gov.uk, Sep 2026. Councils publish at different levels of detail — confirm the scope of any direction with Lewes District Council.

Conservation areas

Each links to its own page: boundary map, what it changes, and the council’s appraisal.

What you can build in Lewes

The national limits for a semi-detached house with full permitted development rights. Inside a conservation area or Article 4 area, some of these need planning permission.

• Rear extension3 m · 6 m with PA
• Two-storey extension3 m
• Side extensionHalf the width
• Loft conversion50 m³
• Garden room2.5 m high by boundaries
• Porch3 m²
• Solar panels0.2 m projection
• Air source heat pump1 unit
• Fences, walls and gates2 m · 1 m by a road
• External claddingMatching materials