Installing an Air Conditioner/Heat Pump Outdoor Unit

In some cases, you’ll need an environmental permit to install an air conditioner or an outdoor heat pump unit. Under “Conditions,” you can find out when an environmental permit is required and what requirements a unit must meet.

Terms and Conditions

• The noise level of the unit in your neighbors’ home must not exceed 30 dB, measured in accordance with NEN 5077. Ask your sales representative whether your unit meets this requirement. Outdoors, the noise level of the unit must not exceed 40 dB at the property line. Outdoor noise levels must be measured in accordance with the Manual for Measuring and Calculating Industrial Noise. Please keep in mind that noise levels of 30 dB and 40 dB are still clearly audible, and that a lower noise level may be preferable for you and your living environment. These noise requirements have been in effect since April 1, 2021.
• If you place a unit on the ground, you may be able to do so without a permit. In that case, your unit may be no more than 1 meter high and have a surface area of no more than 2 m2. Is your home located in a protected historic district? If so, you will need an environmental permit if you place the unit at the front of your home, on the side of your home, or on a side of your home that borders a publicly accessible area. Is your home a historic landmark? If so, you must apply for an environmental permit.
• Would you like to install a unit on your facade? In that case, you do not need an environmental permit if the unit (including the mounting bracket, frame, or other components) protrudes 50 centimeters or less. This also applies if you place the unit on your balcony, against the facade of your home. In any case, make sure the unit remains as small as possible. Please note: make sure you do not cross the boundary between your property and your neighbors’ property or public property. Is your home located in a protected historic district? If so, you’ll need an environmental permit if you install the unit on the front of your home, on the side of your home, or on a side of your home that borders a publicly accessible area. Is your home a historic landmark? If so, you must apply for an environmental permit.
• Would you like to install a unit on your roof? In that case, you do not need a permit if the unit (including the mounting bracket or frame) protrudes 50 centimeters or less. Is your home located in a protected historic district? If so, you will need an environmental permit if you install the unit on the front roof of your home or if the unit is visible from a public space. Do you have a flat roof? If so, apply for an environmental permit. Is your home a historic landmark? If so, apply for an environmental permit.
• We recommend choosing a unit that is as unobtrusive as possible. Consider materials and colors that blend in with the surroundings.

Are you renting a home?

In that case, make sure you have your landlord's permission to install the unit, regardless of whether or not you need an environmental permit.

Discuss your plans with your neighbors

We recommend that you always contact your neighbors before installing a unit. An outdoor unit for an air conditioner or heat pump is often perceived as a nuisance. By discussing the matter with your neighbors and other nearby residents early on, you can often install a unit amicably and without any problems (after you have obtained any necessary environmental permit). This might include additional agreements to further reduce the noise from the units or to adjust the distance from the property line. You might also consider measures such as installing a sound-dampening enclosure or rubber pads to further reduce noise. Be sure to put any agreements you make with your neighbors in writing to prevent future disputes and problems.