Quick answer
Refusal is rare here: 97.8% of 46 decisions went the applicant's way, covering all development types with 11 householder cases among them. 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 Cumberland has decided
Enough has come before this council to see a pattern without over-reading it. Cumberland has ruled on 46 cases naming cooling equipment, saying yes 45 times and no 1.
A further 5 applications mentioning cooling plant sit on Cumberland's record with no decision against them - still live, withdrawn, or closed some other way. None of them are in the rate below, and that cuts both ways: a withdrawal is an applicant changing their mind, not a council saying no.
Put as a proportion, 97.8% of 46 rulings went the applicant's way, counting all development types, with 11 of the 46 coming from households and the rest from commercial or mixed schemes. Very nearly everything that reaches a ruling passes it.
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.
There is no householder-only rate on this page. Cumberland has decided 11 householder applications mentioning cooling plant, below the sample size we publish a percentage from, so the count stands on its own and the rate is withheld.
Air-to-air specifically - the equipment that both heats and cools, and the only category with a permitted-development route on a house - is named in 1 of Cumberland's decided applications. That is a small number everywhere, and it reflects the market being early rather than the technology being rare.
Air-source heat pumps, counted separately
Cumberland has decided 24 applications mentioning an air-source heat pump and approved 100%, which is the higher of its two figures on this page.
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 Cumberland through the postcode on the application itself. Of the 51 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 Cumberland 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 71 decided
- 7/2026/2110Approved with conditions
To renovate rear gents toilet block, construct extension and installation of air source heat pumps...
- 7/2026/2111Approved
To renovate rear gents toilet block, construct extension and installation of air source heat pumps...
- 7/2026/4012Approved with conditions
The proposed works are to replace the existing oil tank and install air source heat pump, as part of a new renewable...
- 7/2026/2042Approved with conditions
Partial refurbishment of Senior Citizens Club; installation of solar PV panel to roof and installation of air source...
- 7/2026/2006Approved with conditions
External alterations, ground-mounted PV panel, a new packaged treatment plant and an air-source heat pump.
- Carlisle2/25/0487Approved
Installation Of Air Source Heat Pump To Rear Of Property...
- Allerdale/FUL/2025/0013Approved
New automatic sliding door to entrance and three outdoor condensing units (Part retrospective)...
- Allerdale/HOU/2025/0067Approved
Demolition of conservatory and replacement with single storey extension to the side and rear. Air source heat pump to...
- Carlisle2/25/0200Approved
Variation Of Condition 2 (Approved Documents) Of Previously Approved Permission 23/0430 (Erection Of New Process...
- Allerdale/HOU/2025/0008Approved
Alteration and extension for rear sunroom and installation of air source heat pump to the rear...
- Carlisle2/24/0561Approved
Installation Of External Plants, 2no. Air Source Heat Pumps And Erection Of Acoustic Timber Fence (Retrospective)...
- Carlisle2/24/0661Approved
Replacement Of Ventilation And Comfort Cooling Installations Including Removal Of 3no. Existing Air-Conditioning...
59 further decided applications are held for Cumberland 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 Cumberland. 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 Cumberland approve air conditioning applications?
Nearly always, on the record we hold. 97.8% of the 46 applications mentioning cooling plant that Cumberland has decided were approved, across all development types and including 11 householder applications. A rate that high partly reflects which applications reach a decision at all, since withdrawn ones are not counted.
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 Cumberland refused?
1 of the 46 decided applications mentioning cooling plant were refused. That is too few for us to draw any pattern from, and we do not publish refusal-grounds analysis on a sample that small.
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 Cumberland has decided 11 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 Cumberland 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.
