Case - gym
A 900 m² strength gym in South Jakarta had a premium tier that was really just a different card colour. They asked for the smallest possible recovery footprint with real member impact - and a path to grow it later.

No spare room, no appetite for construction, one KPI: give the premium tier a benefit members can feel in their legs. The US benchmark was on the table - ~30% of new members choosing a recovery tier at about +$20/month (Fitness Premier via Athletech) - and the owners wanted the Indonesian version of that test at minimal capex.
The smallest complete answer: one teak oval tub at 8 °C beside the existing showers (rinse-first is a plumbing fact, not a poster), a 2 HP chiller on a vibration pad in the service corridor, a shelf, a timer clock, a laminated protocol. Power and drainage were pre-planned for a future second tub and a 2-person sauna - growth without demolition.
The membership economics of recovery corners - tiers vs per-session, churn logic, programming - are unpacked in Recovery zones and gym retention and on the gyms page.
Because demand data beats projections. The stubs in the wall cost almost nothing; the 90-day numbers then justify - or resize - stage two.
When the corner has water and power nearby, yes: tubs arrive finished. Day one is set and plumb; day two is chill-down, SOP and staff training.
Two tubs from day one - WOD finish times cluster, and a queue at minute three kills the habit loop. See gyms & fitness.
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