Quick answer
Usually, with a real minority refused: 85.4% of 48 decisions were approvals, all development types included, 18 of them domestic. A cooling-only unit still needs a full planning application, because the permitted-development route on a house belongs only to an air-to-air heat pump, which heats as well as cools.
What Richmond upon Thames has decided
Richmond upon Thames has decided 48 planning applications mentioning air conditioning or other cooling plant. 41 were approved and 7 were refused - a working sample rather than a deep one, but enough to read a posture from.
Richmond upon Thames's record holds 25 more that never reached a determination, whether because they remain live or because the applicant pulled them. Everything below excludes them, so the rate describes determined cases only.
As a rate that is 85.4% of 48 decisions, spanning every development type and including 18 householder applications. Approval is the likelier outcome without being the assumed one.
The scope matters as much as the number. Commercial and mixed-use plant makes up a large share of any council's cooling caseload, so an all-development rate is a weaker guide to a domestic application than its size suggests.
We stop short of a householder-only percentage for Richmond upon Thames. At 18 decided householder applications the sample is too thin, and a rate drawn from it would read as far more certain than the evidence allows.
Only 1 of Richmond upon Thames's decided applications name an air-to-air system in their own description, the one category that both heats and cools. Nationally the figure is similarly thin: planning departments are barely seeing this equipment yet.
Air-source heat pumps, counted separately
There is little to choose between the two here: 85.3% of the 34 decided applications mentioning an air-source heat pump were approved by Richmond upon Thames, a whisker from its cooling-plant record.
These two figures are never added, averaged or read as one. Most air-source schemes heat rather than cool, and an application mentioning both sits in both counts.
The distinction is the whole point: an air-to-air heat pump, which heats as well as cools, can be permitted development on a house, and a cooling-only unit cannot.
The rule these decisions are made under
Since 2025-05-29, England's permitted-development rules let a house fit an air-to-air heat pump, which heats as well as cools, without a planning application in many cases, within set size, siting and noise limits. A unit that only cools has no equivalent route and needs a full application whatever the property.
That is why the decisions above matter more than they would have before the change. Every cooling-only installation now crosses a planning officer's desk, so the council's posture is not background information, it is the decision.
Flats are the sharpest exception, here as everywhere in England: the permitted-development right for an outdoor unit belongs to the house rather than to a flat within it, so a flat will usually need freeholder or managing-agent consent as well as planning permission.
What gets refused, and what gets attached
What those refusals were FOR is a national question at the volume of officer reasoning currently published, not a council-level one, and we do not pretend otherwise. Both findings are set out with their sample sizes: why cooling applications get refused and the conditions councils attach to an approval.
Every council we can publish a figure for is listed on the council index.
What this data does not show
Applications are identified from their own description, so every count on these pages means applications mentioning cooling equipment, not every cooling installation in the area. An application that fitted the same kit but described it as external plant is not in these figures, which makes them a floor on activity rather than a census.
Each application is assigned to Richmond upon Thames through the postcode on the application itself. Of the 73 applications recorded for this authority, 100% carry a location we could resolve; nationally 1738 of 19260 applications could not be tied to a district at all and sit outside every figure on this site rather than being quietly assigned somewhere.
What this page cannot tell you is what will happen at your address. It has no view of your elevation, your neighbours' windows, whether your home sits in a conservation area, or whether it is a listed building - and a neighbour's approval settles none of those. This is indicative guidance drawn from public planning records, not legal advice: confirm the final position with your Local Planning Authority before you install.
Planning figures are computed from decided planning applications published by UK local planning authorities on their statutory planning registers, aggregated via PlanIt. Contains public sector information licensed under the Open Government Licence v3.0. Figures are indicative and are not a statement by any council. Data as of September 2026. See all data sources.
Recent decisions you can check yourself
These are real applications Richmond upon Thames has decided, taken from its own statutory planning register. Every one links back to the council's entry, so nothing here has to be taken on trust.
12 most recent of 74 decided
- PA26/2193Refused
ASHP unit to rear flat roof, AOV (automatic opening vent) - flue to rear flat roof...
- PA26/2596Refused
Construction of a first-floor rear extension over part of the existing single-storey rear extension, together with...
- PA26/2730Approved
New Rear opening and loft conversion with an addition of rear dormer and new front roof light. Heat pump and A/C...
- PA26/2559Approved
Installation of external air conditioning unit at ground floor level.
- PA26/2262Refused
L shaped dormer loft conversion and installment of A/C unit.
- PA26/2148Approved
Proposed to install 3x new Standard AC units enclosed on three sides with protective railing. Proposed 2x new Gas...
- PA26/2258Refused
Demolition and reconstruction of the existing single-storey rear extension, replacement of the rear dormer...
- PA26/2145Approved
Installation of an air source heat pump...
- PA26/1974Refused
Install bike store to front. Lengthen side window. Air conditioning unit and Air Source Heat Pump to rear with raised...
- PA26/1990Approved
Loft conversion with new rear mansard and dormer and extension to existing side return at ground floor rear. Air Source...
- PA26/2243Approved
Installation of Air Conditioning unit [Retrospective]...
- PA26/2197Approved
Retrospective application for new air conditioning unit.
62 further decided applications are held for Richmond upon Thames and counted in the figures above. They are not listed here to keep the page readable, not because they say anything different.
Statutory planning-register entries published by Richmond upon Thames. Applicant, agent and case-officer names and full addresses are not shown. Descriptions are the applicant's own wording, shortened. Each entry links to the council's own register, which is the authoritative record.
Planning-application data
The applications listed here are entries on the statutory planning register of the named local planning authority, kept under section 69 of the Town and Country Planning Act 1990 and article 40 of the Town and Country Planning (Development Management Procedure) (England) Order 2015. Aggregate figures on this page contain public sector information licensed under the Open Government Licence v3.0.
We show only the application reference, a shortened description, the decision and its date. We do not show applicant, agent or case-officer names, or full addresses. We publish decided applications only. The council's own register is the authoritative record and every entry links to it; where this page and the council disagree, the council is right.
GetComfort is not a planning authority and this is not planning advice. If an entry here concerns your property and you would like it removed, email [email protected] and we will remove it. See all data sources.
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Frequently asked questions
Does Richmond upon Thames approve air conditioning applications?
More often than not, at 85.4% of 48 decisions covering all development types and 18 householder applications. The refused share is large enough that how and where you propose to fit the unit genuinely matters.
Do I need planning permission for air conditioning?
For a cooling-only unit, yes, always. Since May 2025 the permitted-development route on a house is open only to an air-to-air heat pump, which heats as well as cools; a unit that only cools is excluded from it entirely and needs a full application. Flats are a further exception, because the permitted-development right sits with the house rather than the flat within it.
How many air conditioning applications has Richmond upon Thames refused?
Only 7, from 48 decided applications mentioning cooling plant. Too small a number to generalise from, so there is no refusal-grounds section on this page.
Is this the approval rate for homes, or for all buildings?
All buildings. Commercial and mixed-use schemes are a large share of any cooling caseload, and Richmond upon Thames has decided 18 householder applications, which is below the sample size we publish a separate domestic rate from. The count is disclosed so you can see the denominator you are actually working with.
Every home is different - your floor, aspect, EPC band, heating type and conservation status all change the answer. Our free cooling checker pre-fills your home from public property data (EPC and UPRN records) and answers the same question for your specific Richmond upon Thames address rather than for the borough, and returns the right cooling system and an indicative cost with it. No phone call, no waiting.
Check my homeYou will see your full cooling plan instantly. If you would like us to email it to you, or to have a single accredited local installer contact you about a free survey, you choose that at the end - we only get in touch if you ask.
This is indicative planning guidance drawn from public records, not legal advice - always confirm the final position with your Local Planning Authority (LPA) before you install. Every figure above follows our published methodology.
