Air conditioning for Leamington Spa homes, flats and studios

Can you fit air conditioning to a Regency building?

Usually, yes, but the position of the outdoor unit decides how much paperwork comes with it. Leamington grew from 315 residents in 1801 to 15,724 by 1851, and much of what it built in those decades still stands. Work on the Parade began in 1808, the Royal Pump Rooms opened in 1814, and Lansdowne Crescent followed in the 1830s.

Warwick District Council divides the Royal Leamington Spa conservation area into 37 character areas, taking in the Parade, Regent Street, Bath Street, Clarendon Square, Lansdowne Circus and many more streets. Inside a conservation area, the home planning rules exclude any wall or roof that faces a road, and the ground between the building and that road.

So the back of the house is where most of our surveys begin. Our air conditioning planning permission guide has the full list of rules. Sources: Wikipedia; Warwick District Council; Planning Portal.

What changes if your home is listed?

Permitted development falls away completely. A listed building and its grounds get no automatic planning rights for a heat pump, and work that affects the building's special character needs listed building consent, inside as well as out. Going ahead without it is a criminal offence. The maximum penalty on indictment is two years in prison, a fine, or both.

That sounds worse than it usually is. Historic England said in 2023 that heat pumps will generally be acceptable on listed buildings if they are sited with care, while warning that the installation itself can sometimes do harm. In Leamington the council's own guide describes every building on Lansdowne Crescent as Grade II*, and it records Article 4 control over colour on the Parade, Bath Street, Clarendon Square and the Crescent. Our guide to air conditioning in listed buildings sets out the order to do things in. Sources: Listed Buildings Act, section 7; section 9; The Construction Index; Warwick District Council.

Who has to agree if you live in a converted flat?

Whoever owns the outside walls, and possibly the council too. A lease can allow alterations with consent or ban them altogether, and a freeholder can recover reasonable costs for granting a licence. When the work touches walls or a roof the freeholder keeps, the law sets no ceiling on any premium it asks.

Planning adds a twist that catches out many flats in this town. The permitted development rules for flats only apply to a block made up wholly of flats. If there is a shop or café on the ground floor, as on so much of Regent Street and Clemens Street, those rights are not available and a planning application is the likely route.

In Warwick district 19.0% of households rent privately and 14.1% rent socially, and Leamington has controlled the change from family house to small shared house since April 2012. If you rent, start with your landlord. The guide for flats goes through each case. Sources: LEASE; LEASE on charges; Planning Portal; ONS; Warwick District Council.

Why are more Leamington households asking for cooling?

Because the last two summers each broke the record. The UK's mean summer temperature reached 16.1°C in 2025 and 16.5°C in 2026, with five heatwaves in that second year and a peak of 38.1°C at Kew on 13 August.

The first room to give up is usually one you sleep in. Research for the government in 2019 used 26°C overnight as the bedroom limit, and estimated that overheating could cut a good night from eight hours to six or seven. It also found that over half of households sometimes feel unable to open windows, mostly because of security or noise. Our page on home air conditioning starts there, and the bedroom guide compares the options. Sources: ITV News, reporting the Met Office; GOV.UK.

How does the same unit keep a house warm?

Swap the direction of the refrigerant and an air conditioner becomes an air-to-air heat pump, taking heat from the air outside even on a cold morning. The Energy Saving Trust puts seasonal heating efficiency at typically above 4.0, meaning one kWh of electricity delivers four of warmth. On the October to December 2026 price cap of 26.32p per kWh, that is about 6.6p for a kWh of warmth, against the full 26.32p from a plug-in heater.

It warms the air in a room, not your radiators or your hot water, so most people keep the boiler. Gas under the same cap is 7.97p per kWh before boiler losses, so the sums are closest in a house with an efficient boiler. Read more about air-to-air heat pumps. Sources: Energy Saving Trust; Ofgem.

What does cooling a game studio or office involve?

Leamington is the centre of what its MP described to Parliament in 2021 as the Silicon Spa cluster: over 2,000 people in 32 studios, and more than 10% of the UK's games development sector. A floor of high-powered PCs is a heater that never takes a day off, because almost every watt a machine draws ends up as warmth in the room.

Nobody has written a top limit into workplace law. Indoor temperatures only have to be reasonable, though the Health and Safety Executive expects employers to assess heat as they would any other hazard. Larger systems bring one more duty: anything over 12kW in total must be inspected for energy use at intervals of up to five years. See office air conditioning, shops and restaurants and server room cooling. Sources: Parallel Parliament; legislation.gov.uk; HSE; GOV.UK.

What should you ask any installer before paying?

Ask for the company's F-gas certificate and the qualification of whoever handles the refrigerant. A business working on other people's systems must be certified by an approved body, and that includes sole traders. The certificate runs for three years. Each engineer needs a personal qualification as well.

Then ask who certifies the electrics, because a new circuit is notifiable work, and ask to see the sound calculation for your neighbour's nearest window. Ask us too. You can verify what you are told by following our F-gas certificate guide. Sources: GOV.UK on companies; GOV.UK on qualifications; Warwick District Council on Part P.