Structural Survey Ireland 2026: What It Is and Why You Need One
A structural survey is an independent inspection of a property's physical condition carried out by an engineer or chartered surveyor. In Ireland, surveys typically cost €400–€600 for a standard home and take 2–4 hours on site. They are not legally required, but on any property built before 2000 they are strongly recommended before you sign contracts.
What does a structural survey cover?
A structural survey assesses the physical condition of the entire property: foundations, roof structure, walls, floors, windows, plumbing, and electrical systems. The surveyor identifies defects, estimates repair costs, and flags any items that require specialist investigation (e.g. asbestos, pyrite, radon).
The report is typically 20–40 pages and is written for a non-specialist audience. It will grade issues by severity: urgent (safety risk), significant (costly to repair), or minor (cosmetic).
Structural survey vs mortgage valuation
These are two entirely different things. A mortgage valuation (€150–€200) is commissioned by your lender to confirm the property is worth the purchase price. The valuer spends 20–30 minutes on site and is working for the bank, not you.
A structural survey (€400–€600) is commissioned by you and works entirely in your interest. Never rely on the mortgage valuation as a substitute for an independent survey.
| Structural survey | Mortgage valuation | |
|---|---|---|
| Commissioned by | Buyer | Lender |
| Cost | €400–€600 | €150–€200 |
| Duration | 2–4 hours | 20–30 minutes |
| Report length | 20–40 pages | 1–2 pages |
| Legally required | No | Yes (for mortgage) |
Pyrite and radon: Ireland-specific risks
Two issues are particularly important in the Irish market. Pyrite is a mineral found in some hardcore fill used under ground floors in homes built between 1997 and 2013, predominantly in Dublin and surrounding counties. It causes floor heave and structural damage. A pyrite inspection costs €200–€300 separately.
Radon is a naturally occurring radioactive gas that accumulates in poorly ventilated spaces. The EPA estimates 300 lung cancer deaths per year in Ireland are linked to radon exposure. High-risk areas include parts of Galway, Mayo, Kerry, and Donegal. A radon test (€50–€80) is separate from the survey.
When to walk away based on survey findings
Some findings justify renegotiating the price — subsidence risk, roof replacement needed, rewiring required, damp throughout. Others justify walking away entirely: major structural instability, confirmed pyrite with significant heave, or undisclosed planning breaches.
Surveyors can estimate repair costs to help you negotiate. On a €350,000 property, discovering €30,000 in essential remediation works is grounds to negotiate the price down or request the seller carry out the works before closing.
Frequently asked questions
Is a structural survey legally required in Ireland?+
No. It is not a legal requirement. However, most mortgage lenders require their own valuation, and a structural survey commissioned by you is strongly recommended — particularly for older properties. Skipping a survey to save €500 can expose you to tens of thousands in unexpected repair costs.
Who carries out structural surveys in Ireland?+
Structural surveys should be carried out by a chartered engineer (MIEIor FIEI) or a chartered building surveyor (MSCSI or FSCSI). Always verify credentials before engaging anyone. The Society of Chartered Surveyors Ireland (scsi.ie) has a member finder tool.
How long does a structural survey take?+
The site visit takes 2–4 hours for a typical 3-bedroom house. The written report is usually delivered within 3–5 working days. Budget 1–2 weeks from commissioning to receiving the report.
Can I use the survey results to negotiate the price?+
Yes. Survey findings are commonly used to renegotiate the purchase price or request that the seller carry out repairs before closing. Your solicitor can advise on how to formally raise survey issues with the vendor's solicitor.
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