Middlesbrough Article 4 Direction — HMO Planning Permission Rules Since February 2025

Since 8 February 2025, converting a family home into a small HMO in Middlesbrough requires planning permission. This is a separate requirement from property licensing, and getting the two confused is one of the most common — and most expensive — mistakes landlords make.

What Changed

Before February 2025, converting a single-family dwelling (Use Class C3) into a small HMO housing three to six people (Use Class C4) fell under permitted development rights. You could do it without a planning application.

Middlesbrough Council made a non-immediate Article 4(1) Direction on 5 February 2024, which came into force one year later on 8 February 2025. The direction removed permitted development rights for C3-to-C4 conversions across almost the entire borough — the only exclusion is the mayoral development area controlled by the Middlesbrough Development Corporation in Middlehaven and the Town Centre.

What You Now Need

Small HMOs (3–6 occupants): any conversion from C3 to C4 initiated on or after 8 February 2025 requires a full planning application. Submit it to Middlesbrough Council's Development Control team at [email protected].

Large HMOs (7+ occupants): classified as Sui Generis use and have always required planning permission, regardless of Article 4 directions. Nothing changed here.

Existing HMOs: if the property was already operating as a C4 HMO before 8 February 2025 — meaning the conversion work was completed and the property was physically occupied as an HMO — it retains existing lawful use. You do not need retrospective planning permission, but you should obtain a Certificate of Lawfulness of Existing Use or Development (CLEUD) to prove it. The CLEUD application requires evidence: historical Council Tax records, tenancy agreements, or building control sign-offs showing the property was in HMO use before the cut-off date.

Planning Permission Is Not a Licence

This is the confusion that catches people. Obtaining planning permission to convert to a C4 HMO does not give you a property licence. And holding a property licence does not satisfy the planning requirement.

If your property is in Newport ward and you convert it to a small HMO, you need both:

1. Planning permission for the C3-to-C4 change of use
2. A selective licence (if 3–4 occupants) or a mandatory HMO licence (if 5+ occupants from 2+ households)

If the property is outside Newport, you still need planning permission for any new conversion, but you only need a property licence if it reaches the mandatory HMO threshold (5+ occupants from 2+ households).

Enforcement for Getting It Wrong

Operating an HMO without planning permission exposes you to planning enforcement action, which is separate from housing licensing enforcement.

The penalties operate in parallel: a landlord who converts a property to an HMO without planning permission and without a licence faces enforcement action on both fronts — planning enforcement from the Development Control team and licensing enforcement from the Private Sector Housing team.

Student Accommodation

Private landlords letting to students are not exempt from the Article 4 direction. Student halls managed or controlled by a higher education institution (such as Teesside University) and covered by an approved code of practice are exempt from property licensing. A privately owned student house needs planning permission for the conversion (if it happened after February 2025) and a property licence (HMO or selective, depending on occupant numbers and location).

For a complete decision framework covering both planning and licensing requirements, see our Middlesbrough Landlord Licensing Guide.

See more England guides →