Dún Laoghaire-Rathdown County Council · PC/H/02/25 · Part Vlll (public consultation)

Mount St. Mary's

129 apartments6 storeysHousing Department, DLRCOCODundrum Road, Dún Laoghaire-Rathdown County Council

Approved Jun 2025; building not started (Q2 2026).

14 Mar 2025Received
9 Jun 2025Approve

Status: Approved
Decision: Approve · 9 Jun 2025
Size: 129 apartments · up to 6 storeys
Uses: residential, apartments
Applicant: Housing Department, DLRCOCO
Site: 9,772 m²

Watch this site Full register record See how it went for houses around here →Council register ↗

Building progress councils’ figures, Q2 2026

129 homes permitted; building has not started (Q2 2026).

129

homes proposed

129

homes permitted

homes started on site

homes completed

completed · under construction · not started · 0 houses and 129 apartments permitted

Quarter by quarter

Quarter	Permitted	Under construction	Completed	Completed share
Q1 2026	129	0	0
Q2 2026	129	0	0

Source: 4Dublin Housing Supply Pipeline (Dublin City, Dún Laoghaire-Rathdown, Fingal and South Dublin councils) · fetched 27 Sept 2026 · latest return Q2 2026

Contains Irish Public Sector information licensed under a Creative Commons Attribution 4.0 International (CC BY 4.0) licence.

The scheme

The Housing Department of DLRCOCO proposes the construction of 129 apartment units at Mount St. Mary's on Dundrum Road, Dublin 14. The development consists of three blocks ranging from two to six storeys in height.

it involves the construction of 129 apartment units

What the register says

129 no. apartment units in 3 no. blocks ranging in height from 2 to 6 storeys

Summary from the register record.

Planning timeline 4 steps

14 Mar 2025
Application lodged — LA / State Authority Development
9 Jun 2025
Council decision — Grant
9 Jun 2025
Final approval
9 Jun 2025
Approval runs out (estimate)

The site 9,772 m²

Boundary of Mount St. Mary's as the Dublin councils map it in the housing pipeline.

Planning applications inside the site 2 applications in the last 10 years

Appeals inside the site 3 with An Coimisiún Pleanála

Other big developments nearby within 2 km

Mount Saint Mary's and Saint Joseph's · 0 m away
Alexandra College · 203 homes · 4 storeys · 345 m away
Rockbawn House and Rockbawn Mews · 63 homes · 498 m away
c.9.6 ha · 693 m away
Former Smurfit Paper Mills Site · 167 homes · 7 storeys · 792 m away
Former Paper Mills Site · 137 homes · 792 m away
Former Murphy and Gunn Site · 74 homes · 797 m away
1.969 ha site at Our Lady's Grove · 903 m away

Everything within 1 km on the map →

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