"Universal" sounds like it includes you. It doesn't.

There's a new Part of the Building Regulations covering toilets, and most places haven't noticed it exists.

It's called Part T. It took effect in England on 1 October 2024, and it's the first time toilet accommodation has had a Part of its own.

Here's the sentence in it that matters most to me, and the one I keep finding venues have got backwards.

A universal toilet is not a wheelchair-accessible toilet.

That isn't my reading. Paragraph 1.10 says it outright: a universal toilet is for universal use by anyone who chooses to use it - and it isn't designed to be wheelchair-accessible.

Why that one sentence does so much damage

Picture what happens when a venue gets this wrong.

They refurbish. They install a row of smart new self-contained toilets, each with its own basin, each usable by anybody. The signage says universal. It reads, to everyone involved, like the inclusive option - and in a lot of ways it is.

Then the accessible toilet goes - because the room's needed and the new ones are for everybody.

I find out when I arrive. Not before, when I could've made a different plan. After.

After the taxi, after the transfer, after I've committed to being there, at the exact point where there's no alternative left.

I haven't gained an option. I've lost the only room in the building I could use.

Paragraph 1.14 of the same document is explicit that this shouldn't happen. Every building other than a dwelling should still have a wheelchair-accessible unisex toilet, under Approved Document M, Volume 2, Section 5. Part T sits alongside that. It was never a replacement for it, and Approved Document M is still the document doing most of the work.

So when I find universal toilets installed instead of an accessible one, that goes in the report as a Priority 1. Not a technicality, not a recommendation. The building has removed the provision a wheelchair user depends on - and believes it's improved access.

What Part T actually governs, and what it doesn't

This catches people out, so it's worth being clear.

Part T governs the arrangement of things inside toilet accommodation. Paragraph 1.6 says so directly. It doesn't tell you how many toilets your building needs.

The numbers live elsewhere - Approved Document G for most building types, the HSE's approved code of practice for workplaces, BS 6465 for scales of provision. If somebody tells you Part T says you need a certain number of anything, they haven't read paragraph 1.6.

The provision rule it does set is a hierarchy. Separate single-sex toilets are the default. Universal toilets can be added alongside them where there's space. And where space genuinely rules out single-sex provision, fully enclosed universal toilets go in instead.

That hierarchy reflects a government policy position - and clients sometimes want to have that argument. I don't have it with them. In a report I describe what the document requires and what the building costs the people using it. The politics belong to somebody else.

Four types, and the one most people have never heard of

Part T sets out four types of toilet - and the two that matter most for access are the ambulant ones.

Type A is a self-contained ambulant universal toilet, minimum 985 by 2125mm, 750mm clear opening, grab rails on both walls and a closing bar on the door. Type C is the ambulant single-sex cubicle, minimum 920 by 1465mm, same rails, same bar, with the basin outside.

Types B and D are the ones without rails. Type B is the self-contained universal toilet at 1050 by 1685mm with a 650mm opening. Type D is the standard single-sex cubicle, 910 by 1740mm.

Those rails are the whole point of A and C - and they're why "ambulant" deserves more attention than it gets. Most disabled people don't use a wheelchair. A horizontal rail on each wall with a vertical leg in an L, 600mm long, and a bar on the inside of the door at 900mm to pull it closed - that's the difference between managing on your own and not going out.

Where Approved Document M calls for an ambulant disabled person's toilet, Part T says provide it as a Type A or a Type C. All four types are set out with their dimensions on the dimensions page.

And the dimensions are minimums. Specify a bigger basin or a longer pan and the room has to grow - because the clearances have to survive. The one I measure first is the column of clear space in front of the pan, 465mm across, and it has to be genuinely clear of the door swing and the bin. It very often isn't.

The alarm in the one room where nobody can see you

Part T requires that fire alarms give both a visual and an audible signal.

I want to sit on that one for a moment - because it's the requirement I'd keep if I could only keep one.

A toilet is the single room in your building where I'm alone, with the door shut and locked, with no line of sight to another person. I'm profoundly deaf. If the alarm's audible only, I'm the last person in the building to find out it's being evacuated - and I find out by walking into an empty floor.

That isn't a comfort issue and it isn't a refinement. It's the gap between an inconvenience and a death.

The rest of the detail reads the same way once you know what it's for. Privacy bolts you can work with a closed fist - because not everyone can pinch and turn. An emergency release on inward-opening doors, so somebody who's collapsed against the door can be reached. Doors that resist the passage of sound. A seat that contrasts with the sanitary ware behind it, so somebody with low vision can see where it is. For the lighting, Part T hands you straight to PAS 6463.

Each of those is a decision about whether you're overheard, seen, or trapped. You can read a room and tell which ones were taken and which were left to whoever did the fit-out.

Does it actually apply to your building?

Usually not yet, and this is where I see the most confusion.

Part T applies to new buildings other than dwellings, in England. It doesn't reach dwellings, en-suites in individual bedrooms so hotel and care home rooms are out, schools, early years premises, or cellular accommodation in custodial facilities.

There are transitional arrangements too. If the building notice or full plans application went in before 1 October 2024 and the work was sufficiently progressed in time, the old position holds.

So for most existing venues Part T isn't a compliance failure. It's the benchmark - and it's the standard the next refurbishment will be held to.

That distinction matters more than it sounds. "You're breaking the law" and "this is what you'll have to meet when you next touch it" do completely different things in a budget meeting - and running them together is how access advice gets ignored. I say which one I mean, every time.

What this is really a test of

A venue that installs universal toilets and removes the accessible one hasn't made a technical error. It's shown you what it thinks disabled people are.

The belief underneath it is that "universal" and "accessible" are the same word wearing different clothes, and that providing for everybody means providing for everybody. It doesn't - and the document it was presumably working from says so on page one.

That's the finding. Not the missing rail or the blocked clearance column, though I'll write those down too. The finding is a building that believed it was including me at the exact moment it stopped.