Oxford HMO Licensing: Additional and Mandatory Schemes Explained

Two HMO Licensing Schemes, One City

Oxford has two separate HMO licensing regimes running at the same time. Generally, every non-exempt house in multiple occupation in the city needs a licence under one of them — and confusing which one applies is a common and expensive mistake.

Mandatory HMO licensing is the national scheme under Part 2 of the Housing Act 2004. It applies to HMOs with five or more occupants forming two or more separate households. This scheme is permanent and runs across all of England — it isn't something Oxford chose to introduce.

Additional HMO licensing is Oxford City Council's own citywide scheme. It catches the smaller HMOs that mandatory licensing misses: properties with three or four occupants forming two or more households and sharing basic amenities, self-contained HMO flats, and qualifying tenanted Section 257 converted blocks. The current additional scheme runs from 25 June 2026 through 24 June 2031, expiring at 00:00 on 25 June 2031.

The 2026–2031 Additional Licensing Designation

Oxford's previous additional licensing scheme ran from 10 June 2021 to 9 June 2026. The council approved a new five-year designation on 18 March 2026 under the General Approval 2024, which lets local authorities enact citywide additional licensing without individual sign-off from the Ministry of Housing.

The new scheme commenced on 25 June 2026. There's a short transition gap of about 15 days between the old scheme expiring (9 June 2026) and the new one starting. Properties with licences expiring in that window received tailored instructions to submit renewal applications aligned with the new scheme's start date.

How to Tell Which Scheme Applies

The deciding factor is headcount and household composition:

• One person, one couple, or one family — not an HMO. Needs a selective licence instead.
• Two unrelated people (two households) — still not an HMO under the Housing Act's three-occupant minimum. Selective licence.
• Three or four occupants forming two or more households and sharing basic amenities — additional HMO licence.
• Five or more occupants in a standard HMO, forming two or more households and sharing basic amenities — mandatory HMO licence. Section 257 buildings are handled under Oxford's additional scheme when they qualify.
• Qualifying Section 257 converted building (conversion work did not comply with the Building Regulations in force at the time, fewer than two-thirds of flats are owner-occupied, and more than half are tenanted) — additional HMO licence for the whole building.

Getting this wrong has consequences. Oxford's licensing progress data shows that 19 selective applications were refused because the properties turned out to be HMOs requiring a different licence category entirely.

What an HMO Licence Costs in Oxford

For 2026/27, a standard new HMO application (mandatory or additional) costs £407 (Stage 1) plus £451 (Stage 2), totalling £858. Apply more than 12 weeks late and the higher rate applies: £407 plus £2,783, totalling £3,190.

Renewals vary by track record. A standard annual renewal costs £392. Landlords with clean compliance histories can earn two-year renewals at £432 or five-year renewals at £610 — a significant per-year saving that rewards consistent management.

Higher-rate renewals (where management concerns or re-inspections are needed) cost £744.

HMO-Specific Requirements

Beyond the standard documents every licence needs (gas certificate, EICR, EPC, smoke and CO alarms), HMO applicants must also submit dimensioned floor plans showing room designations, fire door locations, escape routes, and usable floor areas in square metres. The council checks room sizes against statutory minimums — 6.51 m² for a single occupant, 10.22 m² for two.

Kitchen and bathroom facilities must meet ratios set by Oxford's Amenity and Facility Guide: at minimum one bathroom and one separate WC per five occupants, with kitchen space and equipment scaling with headcount.

HMO licence holders also carry management duties under the Management of Houses in Multiple Occupation Regulations 2006, covering common parts, fire safety systems, drainage, and structural repairs.

Planning Permission Is Separate

Oxford's citywide Article 4 Direction (enacted February 2012) removed permitted development rights for converting a C3 dwelling into a C4 small HMO. Converting any family house into a shared house for three to six people requires express planning permission. Larger HMOs (seven or more) fall into Sui Generis and always need planning consent.

Holding an HMO licence does not grant planning permission, and vice versa. Operating without both exposes you to enforcement under two separate statutory frameworks.

Our Oxford landlord licensing guide covers all three licensing schemes, the application process, two-stage fees, and the document checklist — so you apply under the right category the first time.

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