Opening an HMO in Hounslow: the Article 4 guide
London Borough of Hounslow scores 6 on our strictness scale (1 HMO direction (C3→C4 right removed); HMO direction described as borough/city/town-wide). Below: every HMO Article 4 area it has published, when each came into force, which categories of right the council has removed across all its areas, and an outline of the planning route. Live from planning.data.gov.uk — indicative, verify with the council.
1. Where — the HMO Article 4 areas
One direction is described as covering the whole borough/city — assume every residential address is inside unless the council confirms otherwise.
- Dwellinghouses (C3) to small HMOs (C4) - borough-wide Article 4 DirectionIn force 2023-09-04 · published to the platform 2023-09-04
Boundaries are polygons — a postcode is a point. The free check tells you whether an address is inside one of these areas; the paid report adds the rights each direction removes, the council reference, the direction document and the full planning route for that address.
Free teaser, no sign-up · Try NE2 2AL (Newcastle HMO Article 4) or SW1A 1AA (Westminster, non-HMO direction)
2. When — timeline
- 2023-09-04Dwellinghouses (C3) to small HMOs (C4) - borough-wide Article 4 Direction
A property already lawfully in C4 use before the relevant date may qualify for a Lawful Development Certificate instead of planning permission (step 3 below).
3. What is removed — all rights across Hounslow's Article 4 areas
- 3LChange of use: dwellinghouse (C3) to small HMO (C4) — up to 6 unrelated occupiers · 1 area
- SCHEDULE 2Schedule 2 Part ? Class SCHEDULE 2 · 4 areas
- CLASSES ASchedule 2 Part ? Class CLASSES A · 2 areas
- PART 3Schedule 2 Part ? Class PART 3 · 2 areas
- CSchedule 2 Part ? Class C · 1 area
- CLASS LSchedule 2 Part ? Class CLASS L · 1 area
- CLASS MASchedule 2 Part ? Class CLASS MA · 1 area
- DSchedule 2 Part ? Class D · 1 area
- FSchedule 2 Part ? Class F · 1 area
- PART 1Schedule 2 Part ? Class PART 1 · 1 area
- PART 2Schedule 2 Part ? Class PART 2 · 1 area
4. How — the planning route in Hounslow (outline)
Step headings only. The detail and statutory basis for each step, applied to your address, are in the paid report.
- 1. Full planning application required for C3 → C4
- 2. Check the council's HMO policy before applying
- 3. Existing use? Prove it was lawful before the direction
- 4. Large HMO (7+ occupiers) is sui generis
- 5. Separate: HMO licence
- 6. Enforcement exposure
- Coverage depends on each council publishing its Article 4 Directions to planning.data.gov.uk. 'No Article 4 found' means none is published for this point — it does not prove that none exists. Verify with the local planning authority (LPA) before committing money.
- A postcode is a point, not a building outline. Properties on the boundary of an Article 4 area can fall either side — confirm the exact address with the LPA.
- Large HMOs (7 or more occupiers, sui generis) always need planning permission, Article 4 or not. Mandatory HMO licensing (Housing Act 2004) is separate from planning and is not checked here.
- This report is indicative information from published datasets, not legal or planning advice.
Council: https://www.hounslow.gov.uk · Hounslow summary page · All councils, ranked