Do I Need an HMO Licence for 3 Tenants?

Three tenants alone do not automatically require an HMO licence. Mandatory HMO licensing, the national scheme that applies across England regardless of location, only kicks in once a property is occupied by five or more people from two or more households. A house shared by three unrelated tenants meets the general definition of an HMO, but it sits below the mandatory licensing threshold.

That is not the whole answer, though. A growing number of local authorities run their own additional licensing schemes that pull smaller HMOs, often exactly the three-tenant properties that would otherwise be exempt, into a licensing requirement. Whether you need a licence for a three-tenant let genuinely depends on which council area the property sits in, so the honest answer to "do I need an HMO licence for three tenants" is: check your specific council, because the national rule alone will not tell you.

The 3 vs 5 person rules

Two separate thresholds matter here, and it is easy to conflate them.

The HMO definition itself is set nationally: a property is an HMO if it is occupied by three or more tenants who form more than one household and share an amenity such as a kitchen, bathroom or toilet. Three friends or three unrelated professionals sharing a house, each with their own tenancy or all named on one agreement, typically meet this test. Our guide to what an HMO property actually is covers the household and shared-facilities test in more depth if you are unsure whether your specific arrangement counts.

Mandatory licensing is a separate, higher bar layered on top of that definition: it only applies once the property has five or more occupiers from two or more households. So a three-tenant house is an HMO in the legal sense from day one, but it does not need a mandatory licence purely because of that classification. The storey count of the building makes no difference either way; only the number of occupiers and households matters.

This is the gap that catches landlords out. Being told "my property isn't licensable" because it has three tenants, not five, is only correct if the property is not also caught by a local scheme, which is the next section.

Council variation: additional and selective licensing

Local authorities can introduce two types of scheme that reach below the five-person mandatory threshold, and either can apply to a three-tenant property:

• Additional licensing specifically targets smaller HMOs in a defined area. A council might decide that all HMOs with three or more occupiers, not just five or more, need a licence across the whole borough or in a specific ward. This is the most common way a three-tenant let becomes licensable.
• Selective licensing is broader still and is not about HMO status at all. It requires a licence for any private rented property in a designated area, shared house or not, usually in response to concerns about property standards, anti-social behaviour or deprivation in that specific area.

Both schemes are decided council by council, cover a defined geographic area rather than the whole country, and typically run for a set period before being reviewed or renewed. That means the same three-tenant house could need a licence on one side of a borough boundary and not on the other, and a licensing designation that did not exist when you bought the property can be introduced later during your ownership. Our full guide to HMO licence requirements explains how mandatory, additional and selective licensing fit together nationally.

Worked scenarios

Scenario A. Three unrelated tenants share a terraced house in a council area with no additional or selective licensing designation. The property meets the general HMO definition, so HMO Management Regulations around fire safety, amenity standards and gas or electrical safety still apply, but no licence is required because the mandatory threshold (five occupiers) is not met and there is no local scheme in place.

Scenario B. The same three-tenant house sits in a borough where the council runs additional licensing covering all HMOs with three or more occupiers. Here a licence is required, even though the property would be exempt under the national mandatory scheme alone, because the local scheme has lowered the threshold for that area.

Scenario C. Three tenants rent a single, non-shared flat (one household, not an HMO at all) in an area with a selective licensing scheme covering all private rentals. A licence is still required, not because of HMO status, but because selective licensing applies to any qualifying rented property in that designated area regardless of how many people live there or whether they share facilities.

These scenarios show why the tenant count alone never settles the question. The property type, the household structure and the specific council's licensing designations all have to be checked together.

How to check your council

Before assuming either way, take these steps for the property's actual address:

1. Search the council's website for "HMO licensing" and "selective licensing" alongside the borough or district name, most publish current designations and maps of covered areas.
2. Contact the council's private sector housing or licensing team directly if the website is unclear. This is the definitive source, not a general summary elsewhere online.
3. Ask whether any additional or selective licensing designation is due to expire or be introduced soon, since these schemes run for fixed periods and can change while you own the property.
4. If you use a letting agent or managing agent, ask them to confirm the current licensing position in writing rather than relying on memory of an older designation.

How Property HQ helps

Once you know whether a licence applies, Property HQ keeps the licence itself, along with the safety certificates a licence application depends on, in one compliance record with an expiry reminder, so a small three or four-tenant let does not fall through the gap between "technically an HMO" and "actually licensed."

Disclaimer

This guide is general information for UK landlords, not legal advice. HMO and licensing designations vary by council and change over time. Confirm the current position with the relevant local authority before letting or continuing to let a shared property.