Can I buy a site before getting planning permission in Ireland?

There is no legal requirement to have planning permission in place before buying land or a site in Ireland, and many buyers purchase outright first and apply for permission afterwards. This gives full ownership and control over the timing of an application, but it also means the buyer bears the full risk if permission is refused, delayed, or granted subject to conditions that significantly change the scope or cost of the intended development.

Before buying without permission in place, it's worth carrying out preliminary due diligence: checking the site's zoning under the local authority's development plan, any known constraints such as flood risk or protected status, road access and sightlines, and, if a septic tank will be needed, a site suitability assessment. This won't guarantee an application's success, but it reduces the chance of an unwelcome surprise after purchase.

Alternative structures exist for buyers who want to limit their exposure, such as agreeing a contract subject to planning permission, or negotiating an option agreement that gives the right, but not the obligation, to buy once permission is secured. These arrangements shift risk and timing differently and should be set up with proper legal advice.