Responsibility for air conditioning in rented premises depends on the lease or tenancy, the existing installation and the proposed work. Tenants should not assume they may install external equipment or alter the building without written consent. Landlords should not assume every cooling or repair cost transfers automatically to the occupier. Both sides should document approvals, maintenance, compliance, access, ownership and end-of-term reinstatement, taking legal advice on the actual agreement where needed.
Begin with the agreement and the existing system
Commercial leases can allocate repair, replacement, service-charge and statutory compliance duties in different ways. Check whether the air conditioning exclusively serves the premises or forms part of a central building system, and whether it is included in the demise. Schedules of condition, service-charge provisions and plant ownership can materially affect the answer.
Residential tenancies raise different questions, including habitability, repair obligations and restrictions on alterations. Air conditioning is not automatically required in every home. Specific facts, property condition and tenancy terms matter, so this article is general information rather than legal advice.
Obtain the right consent before alteration
A tenant's proposal may involve holes through walls, roof loading, electrical changes, condensate drainage, noise and occupation of common areas. The lease may require a formal licence to alter, landlord approval of drawings and contractors, and consent from a superior landlord or lender.
Planning permission, listed building consent or other approvals may be separate from landlord consent. Receiving one does not necessarily provide the other. Work should not begin until conditions are understood, documented and capable of being met.
- Provide equipment locations, dimensions and service routes.
- Include noise, vibration, structural and electrical information where relevant.
- State who maintains the system and holds records.
- Agree ownership and reinstatement at lease end.
Allocate operation and compliance clearly
The party controlling operation may have duties under the air conditioning energy-inspection regime when the building's systems exceed the relevant 12 kW threshold. F-gas obligations can also apply to operators and to those performing installation or service work. A managing agent may coordinate tasks without removing the underlying legal responsibility.
Contracts should identify who arranges maintenance, leak checks where required, energy inspections, access and emergency response. Copies of reports and refrigerant records should remain available when management, tenancy or contractors change.
Plan access, nuisance and handback
Landlords may need access for inspection or maintenance, while tenants need notice and minimal disruption. The lease and applicable law govern access rights. Outdoor equipment should be positioned with neighbouring occupiers, bedrooms, roof users and future façade work in mind.
At lease end, uncertainty about abandoned plant can be expensive. The licence to alter should say whether equipment is removed, retained or offered to the landlord, and who repairs penetrations and finishes. A dated condition record and complete handover pack reduce later disputes.
Frequently asked questions
Must a commercial landlord provide air conditioning?
Not necessarily. The lease, existing building services and relevant legal duties determine responsibility. Review the specific agreement and obtain professional advice where the position is disputed.
Can a tenant put an outdoor unit on the roof?
Only if the tenant has the necessary contractual and regulatory permissions. Roof space is often outside the leased premises, and structural, access, noise and planning issues may need approval.
Who pays for a replacement system?
There is no universal answer. Repair covenants, service-charge wording, plant ownership, cause of failure and any licence to alter may all be relevant.
Does landlord consent replace planning permission?
No. Contractual consent and public approvals are separate. A project may need both, as well as other technical or building-control checks.
Related guides
Sources and further reading
How this guide was prepared
This guide was written by the Local AC Installers Editorial Team. We compare official guidance, legislation and established consumer information, separate general information from project-specific advice, and show publication dates and sources. We do not accept installer accreditation claims at face value.