Article 4 directions in Hounslow
These remove specific permitted development rights in defined areas. Check whether your street is inside one before relying on the national limits.
- Article 4(2) directions for Bedford Park and Gunnersbury Conservation areasCheck with the council2001
- Change of use or development that would result in new dwellings (Class MA/ZA)Change of use2025
- Dwellinghouses (C3) to small HMOs (C4) - borough-wide Article 4 DirectionChange of use2023
From planning.data.gov.uk, Sep 2026. Councils publish at different levels of detail — confirm the scope of any direction with London Borough of Hounslow.
Conservation areas
Each links to its own page: boundary map, what it changes, and the council’s appraisal.
What you can build in Hounslow
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.
Getting a Lawful Development Certificate from London Borough of Hounslow
Apply through the Planning Portal. Decisions usually take up to 8 weeks. Your report tells you whether you need one — and includes the drawings checklist.
London Borough of Hounslow website ↗Nearby councils