{"id": "AU-NSW:datacentre:2da79863ffe41c706b1046cd", "slug": "nextdc-s4", "kind": "data-centres", "name": "NEXTDC S4 Sydney", "url": "https://eloragrid.ai/land-grid/data-centres/australia/new-south-wales/nextdc-s4", "map_url": "https://eloragrid.ai/land-grid?region=AU-NSW&record=datacentre%3A2da79863ffe41c706b1046cd", "country": "AU", "country_name": "Australia", "region": "NSW", "region_name": "New South Wales", "locality": "Horsley Park", "address": "16 Johnston Crescent, Horsley Park NSW 2175", "operator": "", "status": "Under construction", "geometry": {"type": "Point", "coordinates": [150.82691745, -33.829174921]}, "location_uncertainty": {"precision": "", "radius_m": null}, "summary": "NEXTDC S4 is a data centre project at 16 Johnston Crescent, Horsley Park. The approved development includes a 294 MW power-consumption scope and two 330 kV underground circuits to Sydney West. Multiplex reports construction in progress.", "paragraphs": [{"heading": "About NEXTDC S4 Sydney", "text": "NEXTDC Limited is developing NEXTDC S4 Sydney at 16 Johnston Crescent, Horsley Park, NSW. Multiplex identifies the project as under construction and lists 2027 as its target completion year. The published timetable refers to construction completion."}, {"heading": "About NEXTDC S4 Sydney", "text": "The NSW development consent for SSD-63741210, issued on 24 December 2025, covers a data centre with 294 MW of approved power consumption, electrical substations and associated infrastructure. The consent also covers the supporting electrical infrastructure."}, {"heading": "How S4 is proposed to connect to the grid", "text": "The planning assessment describes a proposed connection to Sydney West Bulk Supply Point (BSP) using 2 underground 330 kV circuits. The planning documents describe an approximately 2.6 km cable route between the two sites."}, {"heading": "How S4 is proposed to connect to the grid", "text": "Sydney West is identified as a bulk supply point for Endeavour Energy. The assessment includes two additional switching bays at the existing substation. "}], "facts": [{"label": "Developer", "value": "NEXTDC Limited"}, {"label": "Planning reference", "value": "SSD-63741210"}, {"label": "Proposed network connection", "value": "Sydney West Transmission Substation"}, {"label": "Network route", "value": "Approximately 2.6 km, as documented"}], "metrics": [{"label": "Approved power consumption", "value": "294 MW", "note": "SSD-63741210 \u00b7 24 Dec 2025"}, {"label": "Connection voltage", "value": "330 kV", "note": "Two underground circuits"}, {"label": "Target completion", "value": "2027", "note": "Reported by Multiplex"}], "sources": [{"title": "NSW development consent", "url": "https://www.nextdc.com/hubfs/S4%20-%20Lot%20305%20Conditions%20of%20Consent/1.%20Applications%20and%20Approvals/Signed%20-%20SSD%20Instrument%20of%20Consent.pdf", "note": "24 December 2025 \u00b7 Schedule 1 \u00b7 approval, address and 294 MW scope."}, {"title": "HV route supplementary assessment", "url": "https://majorprojects.planningportal.nsw.gov.au/prweb/PRRestService/mp/01/getContent?AttachRef=SSD-63741210%2120250903T041746.047+GMT", "note": "Aurecon revision D \u00b7 20 August 2025 \u00b7 sections 2.1, 5.1 and 5.5."}, {"title": "Multiplex project page", "url": "https://www.multiplex.global/projects/nextdc-s4-sydney/", "note": "Undated participant page \u00b7 construction status and target completion."}, {"title": "Official application contact details", "url": "https://majorprojects.planningportal.nsw.gov.au/prweb/PRRestService/mp/01/getContent?AttachRef=SSD-63741210%2120250903T043141.039+GMT", "note": "3 September 2025 \u00b7 Applicant Details. Contacts may have changed."}, {"title": "Original source", "url": "https://app.eloragrid.ai/land-grid-assets/data/datacentres.json", "note": "2026-10-21"}, {"title": "NSW Planning Portal open data: CFT-1037279 post-consent certificate, 16 Johnston Crescent, Horsley Park", "url": "https://www.planningportal.nsw.gov.au/opendata/dataset/online-pcc-data-api", "note": "2026-10-21"}, {"title": "Original source", "url": "https://www.planningportal.nsw.gov.au/major-projects/projects/nextdc-s4-data-centre-horsley-park", "note": ""}, {"title": "Infrastructure Report - External HV Works", "url": "https://majorprojects.planningportal.nsw.gov.au/prweb/PRRestService/mp/01/getContent?AttachRef=SSD-63741210%2120250903T041746.047+GMT", "note": ""}, {"title": "Signed - SSD-MOD Assessment Report", "url": "https://majorprojects.planningportal.nsw.gov.au/prweb/PRRestService/mp/01/getContent?AttachRef=SSD-63741210-MOD-2%2120260923T023932.155+GMT", "note": ""}, {"title": "Request for SEARs_20231022225252", "url": "https://majorprojects.planningportal.nsw.gov.au/prweb/PRRestService/mp/01/getContent?AttachRef=PDA-63433217%2120231022T225331.748+GMT", "note": ""}, {"title": "NEXTDC S4 Data Centre Horsley Park \u2014 retained reference", "url": "https://www.planningportal.nsw.gov.au/major-projects/projects/nextdc-s4-data-centre-horsley-park", "note": ""}, {"title": "NEXTDC S4 Data Centre Horsley Park \u2014 retained reference", "url": "https://www.planningportal.nsw.gov.au/major-projects/projects/nextdc-s4-horsley-park-mod-2-acoustic-barrier-amendments", "note": ""}, {"title": "NEXTDC S4 Data Centre Horsley Park \u2014 retained reference", "url": "https://www.planningportal.nsw.gov.au/major-projects/projects/nextdc-s4-modification-1-design-modifications", "note": ""}, {"title": "Data centre, 16 Johnston Crescent, Horsley Park \u2014 retained reference", "url": "https://www.planningportal.nsw.gov.au/opendata/dataset/online-pcc-data-api", "note": ""}, {"title": "Original source", "url": "https://www.nextdc.com/data-centres/sydney-data-centres-colocation", "note": ""}, {"title": "NEXTDC S4 \u2014 retained reference", "url": "https://www.nextdc.com/data-centres/sydney-data-centres-colocation", "note": ""}, {"title": "Multiplex \u2014 NEXTDC S4 Sydney", "url": "https://www.multiplex.global/projects/nextdc-s4-sydney/", "note": "Primary source reviewed 2026-11-05"}], "opportunity": null, "reviewed_on": "2026-11-05", "updated_at": "2026-11-06T20:50:37.244066+00:00", "rights": "Elora editorial summaries; linked sources and geographic data retain their respective rights. No blanket third-party licence is granted."}