Do I need a licence for three tenants?

Three tenants is the single most common licensing question, and the honest answer is genuinely "it depends" — not as a hedge, but because three occupiers falls in the gap between a national rule and a local one.

The short answer

• Mandatory HMO licensing: no. That threshold is five or more people in two or more households sharing facilities. Three does not reach it.
• Additional HMO licensing: yes, wherever a council has designated it. Additional schemes exist precisely to catch three- and four-person shared houses.
• Selective licensing: possibly, if the property is let to a single household — but three unrelated sharers are usually two or more households, which points at the HMO regimes instead.

So "do I need a licence for three tenants" resolves to "has my council designated additional licensing over my address" — a question about a document, not about the property.

Why three is the line

An HMO under section 254 of the Housing Act 2004 is broadly a property occupied by three or more people forming two or more households who share a basic amenity. Three is where a property becomes an HMO at all.

Mandatory licensing under section 55 then applies only to the larger end — five or more occupiers. That leaves a deliberate gap: properties that are legally HMOs but not mandatorily licensable. Additional licensing under section 56 is the power councils use to close it, and the overwhelming majority of additional schemes are drawn to catch exactly three and four occupiers.

Of the 318 councils in England and Wales we track, 63 operate an additional licensing scheme. Many are borough-wide or citywide rather than ward-based, because the case for them does not depend on street-level deprivation evidence in the way a selective scheme does.

Household, not headcount

The count that matters is households, not people. Three tenants who are all members of one family are a single household, and the property is not an HMO however many of them there are. Three unrelated sharers are three households. A couple plus one friend are two.

Section 258 defines what counts as a household — broadly, relatives and couples. Getting this wrong in the optimistic direction is the usual route into an unlicensed let.

Two things that catch people out

Occupancy drifts. A property let to two and later occupied by three has crossed into HMO territory without anything being signed. Where an additional scheme applies, the licence requirement arrives with the third occupier.

Section 257 conversions. Many additional designations also catch converted blocks of flats where the conversion did not meet the Building Regulations in force at the time and fewer than two thirds are owner-occupied. That has nothing to do with how many people live in any one flat, and owners of converted blocks routinely miss it.

How to settle it for your address

1. Count households, not tenants. Three or more households sharing an amenity means the property is an HMO.
2. If five or more occupiers in two or more households — mandatory licence, nationally, no designation needed.
3. Otherwise, check whether your council has designated additional licensing, on our licensing index.
4. Check the address against the council's designation map, since some additional schemes are ward-based rather than borough-wide.
5. Check selective licensing too. Some addresses fall in both a selective and an additional designation, and which applies turns on how the property is let.

We have not established a discretionary position for 178 of the 318 councils we track, and we say so on those pages rather than implying no scheme exists.