Portsmouth HMO Planning vs Licensing: Two Separate Systems

Having an HMO licence in Portsmouth does not mean you have planning permission. Having planning permission does not mean you have an HMO licence. They are two entirely separate legal systems administered by two different council departments, and you need both to operate lawfully.

Why Portsmouth Is Different

Most of England allows a landlord to convert a family home (Use Class C3) into a small HMO housing up to six unrelated people (Use Class C4) without planning permission — it falls under permitted development rights. Portsmouth removed that shortcut with a citywide Article 4 Direction. Converting any C3 dwelling into a C4 HMO anywhere in Portsmouth now requires express planning permission from the Development Management team.

Properties housing seven or more unrelated occupants fall into the Sui Generis use class, which always requires dedicated planning consent regardless of Article 4.

What This Means in Practice

A landlord who applies for an additional or mandatory HMO licence through the Metastreet portal is dealing with the Private Sector Housing team under the Housing Act 2004. That team checks occupancy, safety certificates, room sizes and fitness of the licence holder. It does not check planning status.

Separately, the Development Management team handles planning applications under the Town and Country Planning Act 1990. A planning approval for C4 or Sui Generis use confirms the building can lawfully operate as an HMO — but it says nothing about whether the property meets Housing Act standards.

You can hold a valid HMO licence while operating in breach of planning control, or hold full planning consent while operating an unlicensed HMO. Either situation carries its own penalties.

How Planning Status Affects Your Licence Tier

Portsmouth links the two systems at the tier-qualification stage. To qualify for a 2.5-year or 5-year licence, you must demonstrate lawful planning status by providing one of the following: a planning approval reference number, a Certificate of Lawful Existing Use or Development (CLEUD), or evidence that the property was already operating as an HMO before the Article 4 Direction took effect.

Properties without established planning status may be limited to a 1-year licence — the most expensive tier per year — and may be referred to Planning Enforcement.

Getting Both Right

If you are converting a property to shared use for the first time, apply for C4 planning permission before submitting the HMO licence application. Once granted, include the planning reference in your Metastreet application to qualify for a longer licence term.

If the property has been operating as an HMO for years without formal planning consent, a CLEUD application establishes lawful use based on continuous HMO operation predating the Article 4 Direction. This typically requires evidence such as tenancy agreements, council tax records, or utility bills spanning the relevant period.

Our Portsmouth Landlord Licensing Guide covers both the planning and licensing pathways with a decision flowchart that maps your property's history to the correct route.

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