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Dún Laoghaire-Rathdown County Council · PC/H/02/25

Mount St. Mary's

Approved in Jun 2025.

This is Mount St. Mary's — 129 homes, up to 6 storeys, by Housing Department, DLRCOCO. Read the scheme page →

  1. 14 Mar 2025Received
  2. 9 Jun 2025Approve

Development site A permission for 231 homes on this site (ABP-310138) was never started. Permission lapsed 25 Aug 2026: this site on the map

Status
Approved
Decision
Approve · 9 Jun 2025
Council
Dún Laoghaire-Rathdown County Council
Type
Part Vlll (public consultation)
Site
9,772 m²

Open on the full map →

What’s proposed

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

Planning details

Reference
PC/H/02/25
Local authority
Dún Laoghaire-Rathdown County Council
Status
Granted · register status “Decision made”
Received
14 Mar 2025
Decision
Approve on 9 Jun 2025
Site area
9,772 m² from the mapped boundary, not the council's figure

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What could you build here?Opens pre-filled with “new house, apartment” — how the same work went for the houses around here.

Nearby 28 · 500 m · 12 months

Distance
Time
Show all 28

Explore this area on the map →

Homes nearby

Development land nearby

See all development land near here →

Zoning

R2 — Existing residential

An established residential area. The objective is to protect existing residential amenity as well as to provide housing — which is the objective a neighbour's objection to an overbearing extension is usually argued under.

R2.6 — Existing residential

An established residential area. The objective is to protect existing residential amenity as well as to provide housing — which is the objective a neighbour's objection to an overbearing extension is usually argued under.

Protections nearby 250 m

Flood area nearby (OPW maps). floodinfo.ie ↗

  • Record of Protected Structures · 2
    Emmet House; Miraculous Medal Church
  • Recorded monument · 5
    Bridge; Water mill - unclassified

Where this comes from

National planning feed (NPAD), fetched 11 Sept 2026, 15:18.

Source: National Planning Application Database · fetched 11 Sept 2026, 15:18
SourceLicenceFetchedLink
National Planning Application DatabaseCC BY 4.011 Sept 2026, 15:18open
Summary

PC/H/02/25 is a planning application to Dún Laoghaire-Rathdown County Council for 129 no. apartment units in 3 no. blocks ranging in height from 2 to 6 storeys, received on 14 Mar 2025; permission was granted on 9 Jun 2025.