The proposed development seeks to provide a temporary construction access road including entrance from Baldonnel Road to provide for the construction of a Regional Network Gateway (RNG) facility permitted under South Dublin County Council Reg. Ref. SD25A/0035W. The works will also involve the temporary provision of a security hut, security gate, vehicle set down area, associated fencing, lighting, civils, drainage, and landscaping works. The temporary works will be removed and lands reinstated to their former use when the construction of the RNG facility is complete.

The development will consist of the omission of a permitted above ground installation (AGI) compound under Reg. Ref.: SD20A/0058, the provision of an AGI at an alternate location within the site, and the provision of a Pressure Reduction Metering System (PRMS) and a foul pumping station, along with road upgrades to the public road (R120 Peamount Road), and provision of a foul sewer connection from the site to the northeast, via Peamount Road and Old Nangor Road. The relocated AGI, PRMS compound, and foul pumping station will be located in the southeastern corner of the site. It is proposed to demolish an existing two storey vacant house (with a gross floor area of 235 sq.m.) to provide for the AGI, PRMS compound, and foul pumping station. The relocated Gas AGI and the PRMS will be located within fenced compounds and will comprise of the following buildings and gas-related infrastructure: - 2 no. AGI buildings comprising AGI Building 1 with a total area of c.18 sq.m and overall height of c. 3.4m and AGI Building 2 with a total area of c. 8 sqm and overall height of c. 3.1m; - A Boiler House Kiosk with a total area of c. 12 sq.m and overall height c. 3.5m and boiler flues with a total height c. 5.4m; - A new E&I Kiosk with a total area of c. 12 sq.m and overall height of c. 2.7m; - A new Control Room with a total area of c. 12 sq.m and overall height of c. 3m; - A new Skid House with a total area of c. 123 sq.m and overall height of c. 3.3m; - The compounds will also accommodate associated valves and pipework. A new foul water pumping station with associated chambers, meters and a 24-hour storage tank will be provided to the east of the AGI and PRMS compounds. The proposed developmbent includes all associated and ancillary works including site lighting, boundary treatments, landscaping, drainage and infrastructure. The proposed development is located within a site subject to an application for an EPA Industrial Emissions (IE) Directive license.

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