Derelict Site Registers — Public Home Page

20.1 Mayo County Council — Derelict Site Register Database - 04 September 2026

20.2 Mayo County Record of Protected Structures - Database

mayo-derelict-sites-explorer.html

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Derelict Site Register

A digital, map-based register of derelict sites across County Mayo, maintained in accordance with the Derelict Sites Act 1990.

🔗 Mayo County Council - Derelict Site Register

Derelict-Sites-Register-04092026.pdf

Derelict-Sites-Register-04092026.pdf

• ⚠ Advisory note (figures and data quality)

At a glance

• 📌 Total sites in the September 2026 PDF: 319
• 📝 Sites with a Section 8(7) date recorded: 316 (3 entries have no date recorded)
• 💰 Total unambiguous market value: €19,765,000 (excludes 3 ambiguous valuations)
• ✅ Sites with an unambiguous numeric valuation: 220
• ❔ Sites with no valuation in the PDF: 96; a further 3 have ambiguous valuations