SiteRep

What should I check before buying a site in Ireland?

Before buying a site to build on in Ireland, check its zoning and any rural housing/local needs restrictions in the development plan, confirm safe road access, get a percolation or site suitability test if there is no public sewer, check flood risk and title, and ideally secure pre-planning feedback or outline planning permission before committing.

Buying land with the intention of building a house on it carries real planning risk, because ownership does not guarantee a grant of planning permission. The single most important step is to confirm the zoning or, for rural sites, the applicable rural housing and local needs policy in the current county development plan, since this determines in principle whether a house could ever be permitted there.

Physical site checks matter just as much as policy: whether there is a safe existing entrance onto the public road with adequate sightlines, whether public water and sewer are available or a private well and wastewater treatment system will be needed (requiring a satisfactory percolation/site suitability test), whether the site is affected by flood risk under OPW mapping, and whether there are any protected trees, hedgerows, habitats or archaeological features that could constrain development.

Legal and title checks are equally essential: confirming good marketable title through Tailte Éireann folio records, checking for rights of way benefiting or burdening the land, confirming boundaries match the deed maps, checking for any wayleaves (ESB, Uisce Éireann, gas), and reviewing any restrictive covenants that might limit what can be built. Buying 'subject to planning permission' or 'subject to satisfactory pre-planning' protects the buyer if the site later proves unbuildable.

Site purchase due-diligence checklist

Before signing contracts, confirm each of the following:

  • Zoning or rural housing/local needs policy applicable to the site under the current development plan
  • Safe, legal vehicular access with adequate sightlines onto the public road
  • Availability of public water and sewer, or a satisfactory percolation/site suitability test result
  • Flood risk status using OPW floodinfo.ie mapping and any site-specific flood assessment
  • Good marketable title, accurate boundaries, and any rights of way, wayleaves or covenants (via Tailte Éireann records and a solicitor)
  • Presence of protected trees, hedgerows, designated habitats, or recorded archaeological/monuments constraints
  • Outcome of a pre-planning consultation or, ideally, an outline/permission-in-principle discussion with the council
  • Connection costs and lead times for ESB, Uisce Éireann/group water scheme, and broadband if needed

Any one of these items can turn an attractive-looking site into an unbuildable one, so it is worth working through the full list rather than relying on a single favourable factor such as a scenic location.

Reducing risk before you commit

Engage a solicitor to review title and a planning consultant, engineer or architect to assess zoning, access and wastewater feasibility before signing an unconditional contract. Where possible, negotiate a contract conditional on satisfactory pre-planning feedback or a specific timeframe to obtain planning permission, and budget for site investigation costs (percolation test, topographical survey, title searches) as part of the purchase process rather than only after closing.

Sources

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

Related questions

← Back to all questions