Development of a Regional Network Gateway facility at Castlebaggot, in the townland of Kilmactalway
Lands at Castlebaggot, in the townland of Kilmactalway, Newcastle, Co. Dublin.
3.33 ha · On Site
Planning application SD25A/0035W to South Dublin County Council: Development of a Regional Network Gateway facility comprising the following: Construction of a single storey main building, at Castlebaggot, in the townland of Kilmactalway, Newcastle. Granted by the council on 10 April 2025. Work commenced on 3 April 2026.
This application amends SD24A/0107W, which carries the original file.
Timeline
- Application lodged
- Council granted
- Work commenced
Key facts
Homes and mix
- 12 car parking spaces
Read from the description, not stated on the register. Shown only where the parts add up to the total.
Proposed development
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
Planning status
A commencement notice has been lodged: works are under way or about to start.
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Nearby applications
Other applications on the South Dublin register close to this address.
- SD25A/0251WLands located at Castlebaggot, in the townland of Kilmactalway, Newcastle, Co. DublinGranted
The proposed development seeks to provide a temporary construction access road including entrance from Baldonnel Road to provide for the construction…
- SD24A/0107WWithin the townlands of Kilmactawlay and Milltown, Newcastle, Co. DublinGranted
Development at this site on lands that include the Aylmer Road (L6003); Baldonnel Road (L2001); and lands that include a small section to the north…
- ED26/0092Castlebagot, Aylmer Road, Dublin 22In Assessment
whether a proposed temporary traffic diversion requires within existing LMA of the worksite needs Planning Permission.
- SD20A/0295/EPTownlands within Grange Castle South Business Park, Baldonnel, Dublin 22Granted
Amendments and modifications to the permitted data centre development granted under Reg. Ref. SD18A/0134 - ABP Ref. ABP-302813-18 and the temporary substation…
Related
About this page: the facts above come from the statutory public planning register kept by South Dublin County Council and are refreshed weekly (last updated 21 Sept 2026). Applicant names and contact details are not shown. Status labels are PlanningLeads' plain-language reading of the register status and the "Use" label is classified by AI from the public description (see how we use AI); neither is legal advice and the council's file is the record. How we handle this data: privacy notice.
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