Do HMOs need planning permission in Kensington and Chelsea?

Kensington and Chelsea has 84 active Article 4 directions in our records. Where an Article 4 direction applies, permitted development rights to convert a home (use class C3) to a small HMO (C4) can be removed, so a full planning application is required. Coverage varies — verify with the council before relying on this.

When does an HMO need a licence in Kensington and Chelsea?

Nationally, a property let to 5 or more occupants forming 2 or more separate households and sharing a kitchen, bathroom or toilet must hold a mandatory HMO licence — this applies in every council in England, including Kensington and Chelsea. Some councils also run additional or selective licensing schemes covering smaller HMOs; check the current schemes with Kensington and Chelsea council.

What are the minimum room sizes for a licensed HMO?

A mandatory HMO licence enforces national minimum sleeping-room floor areas: 6.51 m² for one person aged over 10, 10.22 m² for two people over 10, and 4.64 m² for a child under 10. These are national statute and apply in Kensington and Chelsea.

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Kensington and Chelsea HMO & Article 4 planning

1463 applications in the last 12 months

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Astor analyst's read

Kensington & Chelsea — 84 Article 4 directions in our records; HMO sub-count shows zero in our sync, verify with council.

Profile

Inner London, ultra-affluent, conservation-dominated Victorian and Edwardian terraces; low-density residential character, prime prime markets.

Planning

84 active Article 4 directions in our records with heavy conservation-area footprint; HMO-related sub-count not yet captured in our sync — verify council directly for HMO-specific A4 coverage.

Deal angle

Conservation-led regulatory landscape makes bridging/HMO routes uncertain without current council confirmation of HMO Article 4 scope; 1,463 applications received signals active market despite constraints.

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HMO Requirements in Kensington and Chelsea

What it takes to run a House in Multiple Occupation in Kensington and Chelsea — whether you need planning permission, the licence the property must hold, and the statutory minimum room sizes. Verify current details with the council before committing.

Full guides: HMO licensing in Kensington and Chelsea ↗ · Article 4 directions ↗

01 · Planning permission

No HMO Article 4 in our records

No HMO Article 4 direction in our records for this borough. Where no direction applies, converting a home to a small HMO (C4, up to six occupants) is usually permitted development — but coverage can be incomplete, so verify with the council before relying on this.

See the full Article 4 picture below ↓

02 · Licence to operate

Mandatory HMO licence National

5 or more occupants forming 2 or more separate households

Any HMO occupied by five or more people making up two or more separate households (sharing a kitchen, bathroom or toilet) must hold a mandatory HMO licence. This applies in every council in England, regardless of the number of storeys.

No Additional or Selective licensing scheme in our records for Kensington and Chelsea. Many boroughs operate schemes that extend licensing to smaller HMOs or all rented homes, and these change on five-year cycles — check the council's current designation via the gov.uk licence finder ↗.

03 · Minimum room sizes

One person aged over 10	6.51 m²
Two people aged over 10	10.22 m²
One person aged under 10	4.64 m²
Any sleeping room	≥ 4.64 m²

Kitchen, bathroom & WC standards

Licensed HMOs must provide adequate, well-located cooking, washing and toilet facilities for the number of occupants, plus safe gas/electrics, working fire detection and proper waste storage. The exact ratios (occupants per bathroom, per WC, kitchen size) are set by each council in its own HMO amenity standards — confirm the figures with the borough before committing to a scheme.

Minimum room sizes and the mandatory-licensing threshold are national law (Licensing of Houses in Multiple Occupation (Mandatory Conditions of Licences) (England) Regulations 2018), sourced under the Open Government Licence v3 — they apply in every council. Licensing designations shown are those in our records; verify the current position and exact amenity standards with Kensington and Chelsea Council before relying on this. gov.uk: HMO licences ↗

Article 4 Directions in Kensington and Chelsea planning.data.gov.uk

Conservation area restrictions (80 designated areas)

Extensions, roof alterations, and window/door changes require planning permission within these areas.

specific conservation areas only — not borough-wide Relevant to: buyer, developer, lender

Conservation Area (78)

These 78 directions each apply to a specific designated area — not the whole borough. Check if your property falls within one.

Article 4 - No 12

Conservation Area — Alterations & Extensions

In this conservation area, extensions, roof alterations and cladding to homes require planning permission — you cannot rely on permitted development rights.

Relevant to: buyer, developer, lender

Conservation Area — Windows & Doors

Replacing windows or doors requires planning permission in this conservation area.

Relevant to: buyer

Kensington and Chelsea HMO & Article 4 planning

See the full picture for Kensington and Chelsea

HMO Requirements in Kensington and Chelsea

Article 4 Directions in Kensington and Chelsea planning.data.gov.uk