Planning Permission Ireland
GrantedInfrastructureDecided 20 January 2026

Townland of Clonarrow, or Riverlyons, County Offaly

Erection of a temporary 100m high meteorological mast with an aviation light and bird deterrents for a period of five years.

2560563 · Offaly County Council · Lodged 17 November 2025

Reference
2560563
Authority
Offaly County Council
Register status
Decided
Type
PERMISSION
Received
17 November 2025

Summary

AI-generated

The project consists of erecting a temporary 100m high lattice-type meteorological mast secured by stay wires to measure local climate conditions. It will feature a red aviation light at the top and bird flight deterrent markers on the wires, remaining in place for five years.

Infrastructuremastwind energytemporary
Storey
1

Generated from the description above by an AI model and may contain mistakes. The council’s description is the authoritative record.

Official record

Development description

A) the erection of a temporary 100m high lattice type meteorological mast which will be secured to ground anchors by stay wires and will include instruments for measuring local climate conditions, services, and associated equipment; b) a fixed red aviation light will be fitted near the top of the lattice section of the proposed meteorological mast; c) bird flight deterrent markers fitted to each stay wire at approximately 10m intervals; and d) all associated ancillary works. The temporary meteorological mast development will remain in position for a period of 5 years after which the mast, instruments, services, equipment, and all associated ancillary works will be removed. The purpose of the meteorological mast is to accurately measure the weather conditions at this site

Key dates

Timeline

  1. Application received17 November 2025
  2. Decision due20 January 2026
  3. Decision issued20 January 2026
  4. Grant issued23 February 2026
  5. Permission expiry22 February 2031

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