Planning precedent report

Alterations to approved plans (Grant of Permission ref PL06S.243151 and PA Reg Ref SD13A/0271 and SD18A/0068) to the previously granted planning permission for the construction of an ESB 110kV Gas Insulated Substation for the use by Crag Digital Limited in support of the development and to incorporate an ESB Network Substation to improve and upgrade power supply to Clondalkin and adjoining areas; the proposed ESB 110kV Gas Insulated Substation is a two storey building of gross floor area of 1,586sq.m and Client Control Room building of an area of 116sq.m; single storey 2MV ESB Substation of 38sq.m floor area is proposed to be constructed to facilitate the construction of the already granted development until completion and commissioning of the proposed ESB 110kV GIS Substation, including for 3 ESB external transformers and 3 Crag Digital Limited external transformers; alterations include for the relocation on site of previously granted client transformers, control building and energy centre ancillary building to facilitate the revised ESB 110kV Substation building layout; ESB Substation and client control building and transformer compound are to be secured with a 2.6m and 3m high palisade fence and access gates; all landscaping and ancillary site works as per previously granted planning permission SD18A/0068.

The development proposed will supersede the permitted ICT Facility 4 under Reg. Ref.: SD20A/0309, as previously amended under Reg. Ref.: SD22A/0093 and Reg. Ref.: SD23A/0158. A five-year planning permission is sought in respect of this proposed development. The proposed development comprises the following: • Construction of an ICT Facility Building (ICT Facility 4), with a Gross Floor Area (GFA) of 15,744 sq.m and a parapet height of c. 21.80m (with flues located at roof level, c. 4.5m over parapet height), over 3 no. levels, located in the southern portion of the wider landholding. This ICT Facility includes an associated external plant area of c. 1,796 sq.m over two levels, accommodating 22 no. emergency generators and associated flues. • The ICT Facility building will accommodate ICT equipment halls, associated electrical and mechanical plant rooms, loading bays, maintenance and storage space, office administration areas and screened plant. • Construction of ancillary structures including a guard hut, fire hydrant water storage tanks, fire hydrant pump plantroom, water mist fire protection pump plantroom and water tanks, and cold water plantroom to the west of the proposed ICT Facility 4. • Construction of a revised internal road network and circulation areas to serve ICT Facility 4, footpaths, provision of 25 no. car parking spaces (including 2 no. disabled parking bays) and 18 no. cycle parking spaces within a bike shelter. • Lighting, boundary treatments and all ancillary and associated development (including the construction of an underground foul and storm water drainage network, and utility cables). • Hard and soft landscaping and planting, lighting, screening, and all associated works, including underground foul and storm water drainage network, boundary treatments and security fencing, attenuation areas, and utility cables. An EPA-Industrial Emissions Directive (IE) licence will be required to facilitate the operation of the proposed development.

Alterations to approved plans (Grant of Permission ref PL06S.243151 and PA Reg Ref SD13A/0271) consisting of the following to be constructed in a minimum of two phases: The construction of a similar 2 storey data centre with a gross floor area of c.44,323sq.m associated single storey combined heat and power plant (Energy Centre) with a gross floor area of c.7,109sq.m with ancillary 2 storey operations building with part basement with a gross floor area of c. 2,998sq.m. The Data Centre shall comprise the following uses: offices, canteen, computer and associated support areas, electrical component rooms, plant and associated equipment. The combined heat and power plant shall comprise the following uses: generator and gas fired engine rooms, boiler rooms, chiller rooms, plant and associated equipment. On the site are previously granted gas pressure reduction station and previously granted 110kV substation solely for the use of Crag Digital Limited in support of this development. Also proposed as revisions are removal of 2 end masts for undergrounding of overhead 38kV Power Lines, revisions to Security Hut, omission of Cooling Towers and all revised associated storage tanks, flues, access roads, services, entrance gates and perimeter fencing at 3m high, landscaping and infrastructure inclusive of 94 car parking spaces, retention pond and revised diversion of existing 1200mm diameter arterial sewer as agreed with Irish Water, and all sundry associated minor works. The development will be consequent on previously granted demolition of the existing logistics centre and associated ancillary buildings, retention of existing mobile phone mast and ancillary plant. An Environmental Impact Assessment Reports (EIAR) has been submitted with this application. An-EPA Industrial Emissions Licence has been applied for on 28th November 2017 Reg: P1066-01.

Alterations to the development permitted under Reg. Ref.: SD18A/0068, as previously amended under Reg. Ref.: SD19A/0185 and Reg. Ref.: SD20A/0242, and to the development permitted under Reg. Ref.: SD20A/0309, as previously amended under Reg. Ref.: SD22A/0093. The proposed alterations in summary comprise the provision of an altered energy centre design and all associated development, along with minor alterations to the permitted site layout, provision of a gas AGI, and all ancillary works. The development, for which a 5-year planning permission is sought, will comprise the following: Construction of a revised energy centre in the western part of the subject site, to accommodate alternate generation technology, including 10 no. gas generation turbines (all with associated flues, 8 no. c. 33 metres (m) in height and 2 no. c. 15 m in height), 2 no. steam turbines including 2 no. steam turbine generator enclosure buildings with a gross floor area (GFA) of 219 sq.m each and a height of c. 6.2 m, associated steam turbine generator distribution and control structure with a GFA of 84 sq.m and an overall height of c. 4.2 m, and 2 no. steam turbine / air cooled condenser structures with a height of c. 25.4 m. Construction of 8 no. 33/20kV transformer bays to the southeast of the energy centre, with a further 12 no. gas / steam transformers to serve the proposed turbines to the west of the energy centre. Provision of 3 no. 13.6 m high fuel storage tanks, a fuel oil enclosure building (with a GFA of 50 sq.m and an overall height of c. 3.8m), a fire pump enclosure building (with a GFA of 65 sq.m and an overall height of c. 3.2 m) along with 3 no. c. 14.1 m high sprinkler tanks, a c. 14.5 m high water tank, and a water treatment plant building (with a GFA of 218 sq.m and a maximum height of c. 17 m including rooftop plant). Provision of 6 no. black-start / emergency generators to the south of the energy centre with an overall height of c. 5 m; Provision of a single storey over basement level powertrunk building (with a GFA of 932 sq.m and an overall height of c. 4.1 m) to the southeast of the proposed energy centre. Provision of a 3-storey over basement medium voltage / low voltage building (with a GFA of 3,161 sq.m and an overall height of c. 16.3 m) to the southwest of the proposed energy centre. Provision of 2 no. transformers adjacent to the substation constructed under Reg. Ref.: SD18A/0068, as amended by Reg. Ref.: SD19A/0185 (located to the southwest of the proposed energy centre). Provision of a guard hut with a GFA of 21 sq.m and with a height of c. 3.2m, to the west of the medium voltage / low voltage building. Provision of a Gas AGI (above-ground installation) to the southwest of the subject site within a fenced compound, accommodating a single storey control room building with a GFA of 10 sq.m and overall height of c. 3 m, a plant kiosk with a GFA of 17 sq.m and an overall height of c. 3 m, and a boiler house with a GFA of 13 sq.m and an overall height of c. 3m. Reorientation of permitted ICT Facility Building No. 4 to accommodate the revised energy centre layout (with no other change to this permitted building). Associated and ancillary alterations to the site layout relating to landscaping, parking (including 18 no. car parking spaces, and bicycle parking within a covered bicycle shelter to serve the energy centre) and roads layouts, lighting and services, boundary treatments, drainage, landscaping, and all associated and ancillary works. An Environmental Impact Assessment Report (EIAR) will be submitted to the Planning Authority with the planning application and the EIAR will be available for inspection or purchase at a fee not exceeding the reasonable cost of making a copy at the offices of the Planning Authority. An EPA-Industrial Emissions Directive (IE) licence will be applied for to facilitate the operation of the proposed development.

Amendments to the development permitted under Reg. Ref. SD20A/0309 comprising: alterations to permitted ICT Facility buildings 2 and 3, to include internal reconfiguration of the ICT equipment halls, associated electrical and mechanical plant rooms, loading bays, maintenance and storage space, office administration areas, and reconfiguration of screened plant; alterations to the external facades of permitted ICT Facility buildings 2 and 3 to include modification and reconfiguration of fenestration, louvers, loading bays, and access doors, along with an increase in height of 1.2 metres to main parapet level and reduction in the height of rooftop plant to not exceed the parapet height of the buildings, along with the omission of previously permitted flues and exhaust ducts at roof level; omission of emergency generators and associated flues from permitted ICT Facility buildings 2 and 3; The proposed amendments to ICT Facility buildings 2 and 3 result in an increase in their gross floor area (GFA) of 2,511sq.m for each building, resulting in an overall increase in the GFA of the two buildings of 5,022sq.m; Alterations to the water storage tanks serving the permitted ICT Facility buildings, including total increase of 268 sq.m GFA to the permitted pumprooms and a reduction in the scale of the associated water storage tanks. All associated and ancillary works; The application site is subject to an EPA Industrial Emissions Licence relating to the Energy Centre permitted on site (under Reg. Ref.: SD18A/0068 as amended by Reg. Ref.: SD19A/0185).

Provision of 4 new information and communications technology (ICT) Facility buildings and associated development at the subject site, superseding elements of the extant planning permissions on site (Reg. Ref.: SD18A/0068 and Reg, Ref.: SD19A/0185). The application site is subject to an EPA Industrial Emissions Licence (Ref. No,: P1113-01) relating to the Energy Centre permitted on site, The single storey Energy Centre, gas pressure reduction station, and 110kV Gas Insulated Switchgear (GIS) substation permitted under Reg, Ref.: SD18AI0068 and Reg. Ref.: SD19AI0185 will be constructed as previously approved and are not affected by the current application. The proposed development will comprise the following: The construction of 4 ICT Facility buildings (ICT Facilities 1, 2, 3, and 4) with a combined total gross floor area {GFA) of c. 47,564.5 sq.m, Each ICT Facility building includes associated external plant areas, totalling c, 20,649.5 sq,m, ICT Facilities 1, 2, and 3 will be located in the eastern portion of the site, and each comprise a GFA of c. 15,196 sq.m (including ancillary office and administration space) over part two and part three levels with a maximum height of c, 25 metres and a parapet height of c, 19.5 metres, Each of the ICT Facilities will include an associated external plant area of c, 6,624 sq,m, ICT Facility 4 will be located in the southern portion of the site and comprises a GFA of c, 1,976.5 sq,m (including ancillary office and administration space) over two levels with a maximum height of c, 15 metres and a parapet height of c. 10.5 metres, This ICT Facility includes an associated external plant area of c. 777.5sq.m, Each ICT Facility building will accommodate ICT equipment halls, associated electrical and mechanical plant rooms, loading bays, maintenance and storage space, office administration areas, and screened plant. Construction of internal road network and circulation areas, footpaths, provision of 153 no. car parking spaces and 54 no, cycle parking spaces. Connections to vehicular access routes, roads, services and permitted infrastructure relating to the Energy Centre and 110kV GIS substation permitted under Reg, Ref.: SD18A/0068 and Reg, Ref.: SD19A/0185. Provision of emergency generators with associated flues, water storage tanks and associated pump rooms (comprising 150 sq,m in total) to serve each of the proposed ICT Facility Buildings. Hard and soft landscaping and planting, lighting, and all associated works, including underground foul and storm water drainage network, boundary treatments and security fencing, attenuation areas, and utility cables.