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Article 4 directions

Article 4 directions in London Borough of Hillingdon

London Borough of Hillingdon has published 150 Article 4 direction areas in force to the national planning dataset (planning.data.gov.uk), as of our last update on 25 October 2026. 1 of them withdraws Class L — the change from a house (C3) to a small house in multiple occupation (C4) — according to the council's published record.

The national dataset holds what councils have published to it, so a recent direction may be missing — confirm with the council before relying on permitted development. An Article 4 boundary can split a postcode: check the exact address with the council.

Areas where Class L (small HMO) is withdrawn

AreaReferenceIn force fromRecord
Houses of Multiple Occupation (HMOs)HMO279624 March 2013source

Class L is Schedule 2, Part 3 of the General Permitted Development Order 2015; a small HMO (use class C4) has not more than six residents. A direction withdraws only the classes it names, so other changes of use may still be permitted development here — the source record shows what the council published.

Other Article 4 areas in force

149 records list the classes withdrawn without Class L. Codes such as 1A or 2C name the permitted development classes withdrawn (Part and Class of Schedule 2).

Show all 149

Looking at a property in London Borough of Hillingdon? Analyse it with DataDeal — the analysis checks Article 4 at the property's postcode, with stamp duty, mortgage and cash flow after tax across six strategies.