Air Conditioning for Senior Residences & Care Homes in IDF

"We manage a senior services residence with 62 apartments in Antony, plus two common rooms and a restaurant. The dining room has an air conditioner from 2009, the apartments have nothing. In July, the ARS (Regional Health Agency) came for an inspection of the plan bleu (Blue Plan, the mandatory heatwave response plan) and asked us where the cooled room was: we showed them the dining room, but it sits at 27 °C at 4 p.m. because the machine can no longer keep up. The director wants to equip every apartment, the operator wants to handle only the common areas. Who is right, and where should we start?"

That kind of call always comes in after the first heatwave, and always with an administrative letter in hand. In a facility that houses elderly people, air conditioning is neither a comfort feature nor a sales pitch: it is a regulatory obligation combined with a life-safety issue. An uncontrolled indoor temperature in a room occupied 24/7 by an 88-year-old is not discomfort: it is a risk of dehydration, hyperthermia and hospitalisation.

This article does not revisit topics already covered on this blog — homeowners' association approvals, outdoor unit noise, repair pricing, the tertiary sector energy decree. It describes the working method specific to elderly accommodation in Île-de-France: nursing homes (EHPAD, residential care facilities for dependent elderly people), long-term care units (USLD), assisted-living residences (résidences autonomie), senior services residences, small living units and shared housing. The constraints are unlike anything we encounter elsewhere: permanent occupancy, a frail population, health traceability and inspection by a supervisory authority.

What the regulations actually require (and what they don't)

This is the first misunderstanding, and it costs dearly in pointless meetings. Since the national heatwave plan that followed the 2003 crisis, facilities housing elderly people must have at least one cooled room, sized to accommodate the residents, as part of their plan bleu (Blue Plan) (Code de l'action sociale et des familles (Social Action and Families Code), article D. 312-160 et seq.). The texts and the recommendations issued by Santé publique France (the French public health agency) and the regional health agencies refer to a room capable of maintaining a temperature well below the outdoor level, generally targeted at around 25 °C during periods of intense heat.

What this means in practice:

• the cooled room is not a box to tick: it must hold the setpoint on a day with 38 °C outside, with 40 people inside, not on a 28 °C day with five residents;
• its floor area depends on capacity: the regional health agencies expect sizing consistent with the number of residents housed, not a 20 m² room for 80 beds;
• no legal text requires every bedroom to be air-conditioned — but the operator remains responsible for the safety of the people in its care, and expectations from both families and inspectors have risen sharply since the heatwaves of 2019, 2022 and 2026;
• the plan bleu (Blue Plan) must describe the procedure: who moves the residents, at what time, for how long, and who checks the temperature.

In the inspections our Île-de-France clients report back to us, the question is never "do you have air conditioning?" but "what temperature was recorded, on what day, by whom, and in which logbook?". A technical answer is not enough: you need proof.

For facilities with more than 1,000 m² of commercial floor area, consumption-reduction obligations apply on top: we covered them in detail in our article on the tertiary sector decree and building air conditioning. The two logics are not contradictory, but they have to be negotiated together, not one after the other.

Why a resident's room is not a hotel room

We also work in tourist accommodation, and the specifications bear no resemblance to each other. The technical differences, in order of importance:

• older people perceive heat poorly and draughts very well. With age, the sensation of thirst and thermoregulation decline, while sensitivity to cold airflow increases. A wall-mounted split unit blowing from 1.80 m towards a fixed armchair causes neck pain, rhinitis and the unit being switched off by the resident themselves;
• occupancy is permanent: there is no 11 a.m. to 3 p.m. window to drill through a wall. Every intervention is carried out room by room, with temporary rehousing;
• the setpoint is not adjustable by the occupant, or only under conditions. Locking the remote controls between 24 and 27 °C prevents 17 °C being held all night long — and the repair call that follows;
• hygiene is inspected: a fouled indoor unit in a healthcare facility is not an unpleasant smell, it is a non-compliance. We explained this in our article on musty, sewage or vinegar smells and disinfection;
• staff are present 24/7: night teams react to noise before residents do, and their reports travel fast.

In practice, in bedrooms we favour indirect or remote air delivery: a low-level console under the window, a four-way ceiling cassette where a suspended ceiling exists, or ducted units with perimeter grilles. The classic wall-mounted split remains possible, but never facing the bed or the usual armchair, and always with a louvre angled towards the ceiling.

The four configurations we encounter in Île-de-France

1. The 1970s-1990s concrete nursing home with central heating

This is the most common case in the Seine-Saint-Denis, Val-de-Marne and Val-d'Oise départements. Poorly insulated façades, large windows, heating via hydronic radiators fed by a collective boiler room. Here, the reversible air-to-air heat pump comes in for cooling only: the boiler room is kept for winter and air conditioning is added to the critical zones. The classic mistake is to shut down the radiators assuming the air conditioner will take over: the setpoint in residents' rooms is often 22 to 23 °C in winter, well above a standard home, and air conditioning alone, managed by untrained staff, produces high bills and complaints.

2. The recent senior services residence with self-contained apartments

Each apartment has its own kitchen, bathroom and its own management. Technically, it is a residential building: the issue becomes the siting of the outdoor units, the façade and the homeowners' association rules or the lease. Our guide on choosing the location of the outdoor unit applies word for word. The specific point: in a senior residence, balconies are often the building's only cool shaded areas, and installing 60 outdoor units there effectively makes them unusable.

3. The assisted-living residence in an older building, often in Paris

Small floor areas, no suspended ceilings, saturated service ducts, sometimes a protected façade. The project hinges on one or two common areas — activity room, dining room — handled with a multi-split or a compact ducted system, with a fallback plan for the upper floors. This is where the heritage constraints described in our article on the Haussmann-era apartment and façade constraints weigh most heavily.

4. Shared housing and the small living unit (6 to 12 places)

Often a converted house in the inner suburbs. There, the classic single-family layout works, with the same pitfall: the upper floor stays hot. The topic is covered in our article on the Île-de-France suburban house and treating the loft.