For Clinics, Room Count Beats Staff Count as the Real Predictor of £1M Revenue

HMDG asked 715 UK clinic owners in 2026 what actually separates the million-pound clinics from the rest, and the answer was treatment rooms, not staff. This includes practices like yours, assuming yours is a clinic or centre with more than one door to knock on.

Page updated: 13 Aug 2026

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Clinics chasing seven figures have probably been hiring when they should have been building, because HMDG's ranking puts bricks and mortar ahead of bodies on the payroll.

Original Research	Room capacity, not headcount, best predicts which UK clinics cross £1M in revenue
Source	https://hmdg.co.uk/private-practice-barometer/treatment-rooms-physio-clinic-uk/
Overview	HMDG's Private Practice Barometer 2026 ranks the factors that best correlate with high revenue, using survey data from 715 UK clinic owners.
Year	2026
Publisher	Brand, HMDG
Relevance to Wellbeing	Clinics and centres weighing whether to hire another therapist or open another room now have survey data suggesting the room wins.
Our Verdict	Too early to tell the correlation is real and the sample is decent, but it's still HMDG telling clinic owners to expand, and HMDG sells expansion advice.
Our Summary	Room count correlates with £1M+ revenue more strongly than admin headcount, clinical staff, or number of locations. 715 clinic owners is a respectable sample for this kind of niche research. Correlation isn't causation, so adding a room doesn't hand you the revenue that comes with it. HMDG advises clinics on exactly this kind of growth, which does nothing to weaken the finding but is worth knowing.
Our Geo View	Applies broadly to all countries, though the underlying survey sample is UK clinics only.

Abstract of wellbeing niches and revenue flow

Recognise how this might impact your practice

Why this might matter to you

Coaching: this matters because if you already know your plateau isn't about more clients, it might be about more space.
Therapy: this matters because therapists working from a single hired room now have a number to point at when the landlord asks why you want a second one.
Training: this matters because studios thinking about expansion have something firmer than a hunch to take to the bank manager.
Alternative Healing: this matters because it's proof that boards and banks care more about square footage than about your marketing spend.
Clinical: this matters because clinics are the actual subject of the study, so ignoring it would be a bit rude.
Retreat/Centre: this matters because centres already juggling room bookings can finally justify the renovation instead of the next hire.

Where this came from

HMDG asked 715 UK clinic owners what set the million-pound clinics apart, and treatment room count came out ahead of every other factor they measured.

HMDG, Private Practice Barometer 2026, published 2026.

Credibility flags: sample of 715 UK clinic owners, correlation coefficients disclosed, self-published by a clinic growth consultancy.

How we scored this

A relevance score out of 100, built from three things: how well it fits the six practice types, how recent it is, and how solid the methodology behind it is.

85%

Practice fit, 100How new, 100How solid, 50

Scored highly on practice fit, since the whole study is about clinics and centres, and on recency, since it's fresh out of the oven, but marked down on how solid the method is, given the correlational data and the fact that HMDG has a stake in clinics deciding to expand.

It's worth considering changes to your marketing practices

What this means for your marketing

Put the room-count stat on your growth or scaling page if you serve clinics and centres.
Say "space plans before staff plans" before a prospective client brings up hiring another therapist.
Brief your team on the difference between "predicts" and "guarantees" so nobody promises a new room equals a million pounds.
Mention this figure specifically to clients who've hired repeatedly and stayed flat on revenue.
Update any pitch material for clinic or centre prospects with the full ranked list, not just the headline number.

Who this is most useful for

Practice type	Relevance	Recommended action
Coaching	Low	Mention only if the client operates from multi-room premises.
Therapy	Medium	Use if the practice is clinic-style rather than a single hired room.
Training	Medium	Reference when studio expansion is on the table.
Alternative Healing	Medium	Useful for healers running multi-practitioner premises.
Clinical	High	Lead with this data, it's the direct subject of the study.
Retreat/Centre	High	Use in growth conversations about room capacity versus staffing.

Best before

Best before: revisit when the next HMDG Private Practice Barometer lands, or sooner if you're quoting the exact correlation figures to a client.

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