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Do I need planning permission for a home office in my garden in Ireland?

A garden office used only for domestic purposes such as remote working can fall within the 25 m² rear-structure exemption in Class 2 of Schedule 2 to the Planning and Development Regulations 2001, but a structure used to run a business with employees, clients visiting, or separate living accommodation is not exempted development.

A stand-alone garden office is assessed under the same Class 2 exemption that covers sheds and other domestic outbuildings, because the regulations do not distinguish a home office from any other ancillary domestic structure as long as its use remains incidental to living in the house.

To qualify, the office must sit to the rear of the house, its floor area (combined with any other Class 2 structures already built) must not exceed 25 m², it must not be used for human habitation, and at least 25 m² of private open space must remain in the garden. Height limits and the usual protected structure and conservation area restrictions also apply.

The exemption is lost the moment the use changes from purely domestic remote working to a commercial use — for example, a business with employees working from the garden office, regular client visits, or use as a separate self-contained unit with sleeping and washing facilities. Those uses are treated as a material change of use requiring planning permission.

Checklist for an exempt garden office

Run through these before you build or before changing how it's used:

  • It sits to the rear of the house, not the front garden
  • Floor area is 25 m² or less, combined with other Class 2 structures
  • It is used only by household members, not employees or clients
  • No sleeping or permanent living accommodation is included
  • At least 25 m² of private open space remains in the garden
  • The property is not a protected structure or in a conservation area

Insurance, electrical certification and Building Regulations compliance for insulation and fire safety still apply to an exempt garden office, even without a planning application.

When the use tips into needing permission

If your work involves regular visitors, signage, or employing staff on-site, treat the structure as a change of use and apply for planning permission, since local authorities do act on enforcement complaints about garden offices operating as full commercial premises.

Sources

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

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