Lands at Castlebaggot, in the townland of Kilmactalway, Newcastle, Co. Dublin.
Data updated 12 Sept 2026 · register lag up to 7 days · sources & freshness
SD25A/0035W is a planning application for permission at Lands at Castlebaggot, in the townland of Kilmactalway, Newcastle, Co. Dublin., received by South Dublin County Council on 14 Feb 2025 and first seen by Planning Register on 11 Sept 2026. The application describes: The development of a Regional Network Gateway (RNG) facility (supporting infrastructure for the MS data centres) comprising the following: • Construction of a single storey main building (RNG Building - c.1,124.3 sq.m) with air handling units (AHUs). • External plant/equipment yards including 3 no. diesel generators; sprinkler tank and pump house; electrical plant rooms, PV panels. • MV substation & Stormwater attenuation pond. • 12 no. car parking spaces (2 of which are EV parking spaces and with 1 accessible parking space). Bike parking shelter and bin store. • New road access provided from adjoining permitted estate road (granted under SDCC Ref. SD24A/0107W) and including bridge over existing watercourse. • Internal road and footpath layout, perimeter fencing, security gates and retaining wall. • Landscaped and planted areas including riparian corridor and swale. • Temporary Construction compound and parking area (including temporary bridging of existing watercourse/field drain). • All associated site development works, site lighting, boundary treatments, services/utilities provision (including underground works), and all other ancillary works. Total gross floor area of the development c.1,384.2 sq.m. The council granted permission on 10 Apr 2025. The five-week observation window closed on 21 Mar 2025. A commencement notice (CN0140288SD) was lodged on 3 Apr 2026, so works have started on site. The site is zoned C2.1 — economic development and employment under the South Dublin County Council development plan. Within 500 m there are 5 other decided applications in the last five years.
Proposal
The development of a Regional Network Gateway (RNG) facility (supporting infrastructure for the MS data centres) comprising the following: • Construction of a single storey main building (RNG Building - c.1,124.3 sq.m) with air handling units (AHUs). • External plant/equipment yards including 3 no. diesel generators; sprinkler tank and pump house; electrical plant rooms, PV panels. • MV substation & Stormwater attenuation pond. • 12 no. car parking spaces (2 of which are EV parking spaces and with 1 accessible parking space). Bike parking shelter and bin store. • New road access provided from adjoining permitted estate road (granted under SDCC Ref. SD24A/0107W) and including bridge over existing watercourse. • Internal road and footpath layout, perimeter fencing, security gates and retaining wall. • Landscaped and planted areas including riparian corridor and swale. • Temporary Construction compound and parking area (including temporary bridging of existing watercourse/field drain). • All associated site development works, site lighting, boundary treatments, services/utilities provision (including underground works), and all other ancillary works. Total gross floor area of the development c.1,384.2 sq.m
- Status
- Final Grant
- Decision
- Grant permission on 10 Apr 2025
- Final grant
- 20 May 2025
- Permission expires
- 19 May 2030
- Floor area
- 1,384 m²
- Site (from polygon)
- 3.27 ha
- Location precision
- site (coords_polygon)
Timeline
- 14 Feb 2025New applicationObservation window closed 21 Mar 2025
- 10 Apr 2025DecisionAppeal window closed 8 May 2025
Full planning report for 53.31283, -6.45929
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1 Where this is — preview
1 Deadlines still open
Appeal
Not appealed.
Commencement
- Commencement notice CN0140288SD
Zoning at the site
EE: To provide for enterprise and employment related uses
Zoned for employment uses. Housing is not the intended use here.
RU: To protect and improve rural amenity and to provide for the development of agriculture
Zoned to protect agriculture, rural enterprise and biodiversity. New houses are restricted to demonstrated local need.
Designations within 250 m
OPW flood extent nearby — flag only (licence); floodinfo.ie.
- NIAH-recorded building · 1
- Radon risk area · 1
- Recorded monument · 7
Provenance
Register row from the national planning applications feed (NPAD), fetched 11 Sept 2026, 18:51 (store id 121201). Deadlines were computed by the store from the received / decided dates under the Planning and Development Act 2000 and are recorded as events, not recomputed here. Council register: https://planning.agileapplications.ie/southdublin/application-details/67712.
Source: npad · fetched 11 Sept 2026, 18:51
| Source | Licence | Fetched | Link |
|---|---|---|---|
| npad | CC-BY-4.0 | 11 Sept 2026, 18:51 | open |