Planning precedent report

The development will consist of the development of a Regional Network Gateway (RNG) facility (supporting infrastructure for the MS data centres) comprising the following: Demolition of existing, temporary, single storey showroom. Construction of a single storey main building (RNG Building - c.1,297.7 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. Replacement of existing estate road access with new main access and secondary/emergency access. MV substation (with separate estate road access). Stormwater attenuation pond. Bike parking shelter and bin store. 12 no. car parking spaces (4 of which are EV parking spaces and with 1 accessible parking space). Internal road and footpath layout, perimeter fencing and security gates. Landscaped and planted areas including riparian zones. 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.1,536.9 sq.m

Amendments to a development granted permission under Reg. Ref. SD21A/0167 for a gas fired power plant in Profile Park, Baldonnel. Permission is sought for revisions to the permitted Above Ground Infrastructure (AGI), associated with Gas Network Ireland’s high-pressure gas supply to the power plant which include: • the provision of an E & I kiosk, a regulators & meters kiosk, a gas analyser kiosk, and revisions to the boiler house kiosk with boiler flues. • the provision of a new stormwater attenuation design to serve the AGI compound; • minor revisions to the permitted internal road to serve the AGI; • minor revisions to the permitted fencing surrounding the Gas Pressure Reduction Skid located to the north of the proposed AGI; and • all associated and ancillary works. No changes are proposed to the gas fired power plant or to the site access permitted under Reg. Ref. SD21A/0167. The development permitted under Reg. Ref. SD21A/0167 includes activities which are subject to an Industrial Emissions Licence (Ref Number P1196-01).

Construction of a gas fired power plant with an electrical output of up to 125MW with associated balance of plant, equipment and buildings including; an Engine Hall building with a height of 18.9m, comprising 6 gas engines and ancillary infrastructure; an Electrical Annex Building with a height of 18.7m; a Workshop building with a height of 5. 1m; a Tank Farm building with a height of 5.68m; a Security hut with a height of 3.27m; an Exhaust Stack with a height of 31.8m; a Gas AGI including a kiosk with height of 3.3m; Radiator Coolers with a height of 8.46m; 2 electrical transformers with a height of 4.98m; Tanks including 2 x Diesel Oil Storage Tanks (volume of 2500m3 combined); SCR Urea Tank (26m3); Lube Oil Storage Tank (26m3); Lube Oil Maintenance Tank (26m3); Pilot Oil Tank (26m3); Fire Water Storage Tank (1000m3); Effluent Collecting Tank (26m3); Underground Surface Water Attenuation Tank (490m3); 2 new access onto the existing private road network with Profile Park; 12 parking spaces, footpaths, landscaping; fencing and all other associated site development plant and equipment and other works including surface water and foul wastewater drainage. An EIAR was submitted with this application.

Amendments to planning permission Reg. Ref.: SD21A/0241 as previously amended by Reg. Ref. SD23A/0035. The proposed amendments consist of the following the provision of a temporary, single storey, medium voltage ESB substation building (with a gross floor area of c. 39.5 sq.m), accessed from the estate road to the south east. Associated landscaping and tree planting. All associated and ancillary works.

The application site comprises an area of c. 0.15 hectares. The proposed development comprises an alteration to planning permission Reg. Ref. SD21A/0241, as amended by Reg Ref SD23A/0035. There is a separate application under consideration under Reg Ref SD23A/0203 for the provision of a temporary medium voltage substation on lands to the southeast of the application site. The proposed development (for which a temporary 3-year permission is sought) will comprise the following: Construction of a temporary power generation compound, comprising 24 no. generators (to be powered by hydrogenated vegetable oil), associated flues (c. 6m in height), 8 no. fuel storage tanks, a switchgear room, control room, spares containers, and ancillary structures, all within a fenced compound; The proposed generators will be enclosed within an acoustic panel enclosure c. 11m in height; The proposed temporary power generation compound will be located on an area for permitted car parking under Ref Ref SD21A/0241, as amended by Reg Ref SD23A/0035, which will be constructed following the removal of the temporary compound; The proposed development includes all associated and ancillary works.

Revisions and alterations to the permitted development of a data processing facility under planning reference SD11A/0023 consisting of minor alterations to the four permitted data centre/warehouse structures, additional internal floor areas, alterations to sub-station structures and car park layout to be provided on a phased basis (it is proposed to extend the life of the planning permission to 7 years). The construction of the four data centre/warehouse buildings totals 23278 sq.m. (an increase of 2188sq.m.) and associated site works comprising the following areas: Two Type 'A' buildings each with 1872sq.m. of data halls, 697sq.m. of offices/recption, 1934sq.m. of support space/staff facilities/internal plant giving each a total internal floor area of 4503sq.m. (previously 3582sq.m.) and 1483sq.m. of external plant - total area for both Type 'A' is 11972sq.m. (previously 11094sq.m.); Two Type 'B' buildings each with 1872sq.m. of data halls, 419sq.m. (previously 67sq.m.) of offices/reception; 1879sq.m. support space/staff facilities/internal plant giving a total internal floor area of 4170sq.m. (previously 3005sq.m.) and 1483sq.m. of external plant - total area for both Type 'B' structures is 11306sq.m. (previously 9996sq.m.) The Data Centre part of the building is single storey reaching a maximum of 8.6m in height; the plant area is to a maximum of 10.7m high (increase from 9m) and the tallest building is Type 'A' office building is 12.5m in height (increase from 10m). 4 substations accessed from the estate road to facilitate the development are now proposed; each has an area of 49sq.m. and will be 3.75 metres in height. The development will be constructed in 5 phases initially with the enabling site works and 2 substations; the subsequent phases will contain a single warehouse building starting with the northern-most building. A total of 84 car parking spaces will be provided together with recycling storage and all ancillary services and landscaping. There will be 2 site entrances from vehicular accesses permitted as part of business park infrastructure (SD06A/0568).