BS 6465 HMO Bathrooms: How Many Do You Need? | Kent Traders

Fail an HMO inspection over bathroom numbers and the council won't care how good your wiring is.

How Many Bathrooms Does Your HMO Actually Need?

There's no single national number written into law for this. BS 6465-1:2006+A1:2009 sets out the sanitary provision tables that most council HMO amenity standards are built on, but each local authority publishes its own version with its own thresholds. The pattern is consistent though: one bathroom covers a handful of sharers, and the requirement steps up as occupancy rises.

We've priced fittings for 6-bed HMO conversions in Selly Oak, Birmingham, where the council's amenity standard table is noticeably stricter than the BS 6465 baseline figure. Don't assume your council matches the textbook number. Phone the private housing or licensing team before you order a single pan.

These figures are typical of BS 6465-derived council standards, not a single fixed national rule. Confirm the exact table with your local authority before committing to a layout.

What Actually Counts as a "Bathroom" for Licensing?

A WC and a wash basin together is the bare minimum for sanitary accommodation. A full bathroom needs a bath or shower as well. En-suite conversions count towards the ratio provided they have their own WC and basin, which is exactly why concealed cistern frames have become the default for tight HMO bedroom layouts. A Geberit Duofix concealed cistern frame sits inside the stud wall instead of behind a bulky back-to-wall pan, which is often the difference between fitting a compliant en-suite and not fitting one at all.

Grohe or Aqualisa: Which Shower Survives Shared-House Use?

In an HMO, every shower gets used by more people, more often, with less care than in a single-family home. Durability matters more than the finish on the handset.

For a tight refurb budget, the Grohtherm wins on cost and serviceability. The Aqualisa earns its premium where you're chasing a higher-spec let and tenants who'll actually use the digital control.

Getting the Paperwork Right Before the Inspector Does

HHSRS assessors and licensing officers check bathroom provision against occupancy on the application form, not against what's nice to have. Keep photographic evidence of every WC, basin and bath fitted, plus a simple floor plan showing room-to-bathroom ratios, ready for licence renewal.

Budget roughly £450 to £650 trade ex VAT per compliant en-suite, covering an Ideal Standard WC and basin set plus a Geberit frame but excluding the shower itself. That's usually enough to get through a council inspection without scrambling at renewal time. Cross-check your council's current published standard against gov.uk's HMO licensing guidance before you order, and the underlying provision tables in BS 6465-1:2006+A1:2009 if your council's table leaves a gap unanswered.

If you're refitting the rest of a hospitality or HMO room at the same time, our Corby of Windsor hotel kettle buying guide covers the small appliances side of the same refurb.

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