Permission is sought for amendments to a previously approved development (Reg.

Application details

Planning reference

WEB6031/25

Council

Dublin City Council

Proposal description

Permission is sought for amendments to a previously approved development (Reg. Ref. 3269/23). The proposed amendments comprise the following: • Provision of a new 9sqm L.V. room and 8sqm ESB kiosk to the south-west of the site, adjacent to the existing main entrance; • Removal of the two existing inner security gates; • Installation of photovoltaic (PV) solar panels on the roof of the approved two-storey extension; • Increase in the height of the roof-level plant room of the proposed two-storey extension from +45.2 m to +46.1 m, and relocation of the structure to achieve a 2.9 m setback from the north-east elevation. The enclosed area, providing space for the water tank, plant equipment, and required maintenance access, will also increase in footprint from 20 sqm to 44 sqm; • Modifications to the ground-floor student toilet windows on the north-east elevation of the proposed two-storey extension; and • Enlargement of the stair window located above the escape doors on the north-east elevation.

Location / address

Our Lady Of Mercy Secondary School, Mourne Road, Drimnagh, Dublin 12

Application type

Permission

Received / registered

18 Dec 2025

Council decision

GRANT PERMISSION

Council decision date

19 Feb 2026

Final grant date

26 Mar 2026

Planning timeline

Key dated milestones from the planning record.

1. Application received

   18 Dec 2025

2. Decision: GRANT PERMISSION

   19 Feb 2026

3. Final grant

   26 Mar 2026