Air conditioning installation in a rental property in Belgium
Installing air conditioning in a rental property in Belgium. Landlord consent, co-ownership, costs and applicable rules.
- 01 Applicable rules
- 02 Types of systems
- 03 Required permits
- 04 In practice
Applicable rules in Belgium
Installing air conditioning in a rented dwelling is subject to several rules in Belgium: lease law, co-ownership regulations and EPC rules.
| Type of installation | Landlord consent | Co-ownership consent | Planning permit |
|---|---|---|---|
| Portable air conditioner | No | No | No |
| Fixed split unit (indoor/outdoor) | Yes | Yes (facade) | Possible |
| Ducted system | Yes | No (not visible) | No |
| Reversible heat pump | Yes | Yes | Possible |
The tenant may not modify the dwelling without the written consent of the landlord.
Types of systems
Portable air conditioner
The simplest solution for a tenant:
- No fixed installation
- No consent required
- Cost: 200 - 800 EUR
- Drawback: air exhaust through the window
Wall-mounted split (fixed)
| Advantage | Disadvantage |
|---|---|
| Efficient and quiet | Requires landlord consent |
| Good energy efficiency | Visible outdoor unit |
| Can also heat (reversible) | Professional installation |
| Cost: 1,500 - 4,000 EUR | Co-ownership authorisation |
Unit without outdoor component
An intermediate solution suitable for rental and co-ownership:
- No facade modification
- No co-ownership consent required
- Higher cost (2,000 - 5,000 EUR)
- Lower efficiency than split units
Required permits
Landlord consent
For any fixed installation, obtain written consent from the landlord specifying:
- The type of system installed
- Who bears the installation and maintenance costs
- The fate of the installation at the end of the lease (removal or retention)
Co-ownership consent
If the property is in a co-ownership, installing an outdoor unit on the facade requires a vote at the general assembly (generally a 2/3 majority).
Planning permit
In certain municipalities, installing a visible outdoor unit from the public road may require a planning permit. Check with the planning department of your municipality.
In practice
For the tenant
- Assess your needs (a portable air conditioner may suffice)
- For fixed installation: request written consent from the landlord
- Check the co-ownership regulations
- Have it installed by a certified professional (refrigerants)
- Plan regular maintenance
For the landlord
- Assess whether equipping the dwelling adds value
- Choose a reversible system (air conditioning + heating)
- Check the impact on the dwelling’s EPC
- Obtain co-ownership authorisations if necessary
Impact on the lease
Installation by the landlord justifies a rent revision at lease renewal. See our guide on the lease and contract and our lease generator.