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Do I need planning permission for a heat pump in Ireland?

Usually not for a domestic air source heat pump, which is exempted development under the relevant micro-renewables class of Schedule 2 to the Planning and Development Regulations 2001, subject to a maximum unit size, siting away from the front of the house, and noise-related distance conditions.

Domestic air source heat pumps are covered by an exempted development class in Schedule 2 to the Planning and Development Regulations 2001 (as amended), introduced to support the shift away from fossil-fuel heating systems, provided the unit and its conditions of installation fall within the limits set out in that class.

Typical conditions include a maximum volume or output for the external unit, a requirement that it be sited to the rear or side of the house rather than the front, minimum distances from the boundary to manage noise for neighbours, and a restriction on the number of units per house. Ground source heat pumps involving significant excavation can raise separate considerations relating to groundwater and site works.

As with solar panels, protected structures, architectural conservation areas and sites with restrictive planning conditions can fall outside the general exemption, and a heat pump installed in a location or at a noise level that causes a genuine nuisance to neighbours can still be the subject of an enforcement complaint even where the installation itself was technically exempt.

Checklist for an exempt heat pump installation

Check the following before installation:

  • The external unit's size stays within the exemption's volume or capacity limit
  • It is sited to the rear or side of the house, not the front
  • Minimum distance from the boundary is respected to manage noise
  • Only the permitted number of units is installed at the property
  • The property is not a protected structure or in a conservation area
  • Manufacturer noise ratings are checked against any distance conditions

A reputable installer registered under the relevant SEAI grant schemes will normally already be familiar with the current siting and noise conditions attached to the exemption.

Noise and neighbour considerations

Even an exempt installation can attract a noise nuisance complaint if it is placed close to a neighbour's bedroom window, so consider the siting carefully and, where in doubt, check with the local authority before finalising the installation position.

Sources

Last reviewed 20 August 2026. General information only — not legal or planning advice.

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