Data Center Atlas
ESR / CloudHQ Cosmosquare Data Centre Campus (Nanko Kita, Osaka)
Announced
Japan · 1 project · Last reported
Summary
MLIT's register of ministerial structural-method certifications under the Building Standard Act records certification MNNNNNN-13010, dated 19 August 2026, for the building 'ESR－CHQ南港データセンターOS2' (applicant エイグ特定目的会社; evaluation by the Building Center of Japan). ESR and CloudHQ describe their Cosmosquare campus in Nanko Kita, Osaka, as three phases OS1, OS2 and OS3 that the two companies jointly build, fit out and operate, so this government record identifies the planned second-phase building on 19 August 2026 and supports announced. It is the first certification listed for OS2. A structural certification precedes building confirmation; it is not a building permit, planning consent or construction observation, and no source records OS2 works, schedule, capacity or IT load. evidence
Ministry of Land, Infrastructure, Transport and Tourism (国土交通省 住宅局 参事官（建築企画担当）) · published 2026-10-13
Location
The interactive map needs JavaScript. Display anchor: 34.63940, 135.42107 (Point locator, WGS 84).
View location: OpenStreetMap · Google Maps · Bing aerial · Copernicus Browser
Campus reference; individual project footprints are not mapped.
Projects (1)
ESR－CHQ南港データセンターOS2 — planned second-phase data-centre building, Cosmosquare campus
Announced last observed as of · Project announcement
ESR's release of 16 January 2025: ESR and CloudHQ entered a joint venture on ESR's US$2 billion Cosmosquare Data Centre campus in Nanko Kita, Osaka, and will jointly build, fit out and operate the entire campus, which will deliver 130 MW of data-centre capacity over three phases (OS1, OS2 and OS3). OS1, ESR's first data centre in Japan, was to be ready for service in June 2025 with 25 MW once fully fitted out. evidence
ESR Group · published 2025-01-16
ESR/CloudHQ release of 7 October 2025: OS1 sits within a multi-phase US$2 billion data-centre campus located in Suminoe-ku, Osaka, jointly developed and operated by ESR and CloudHQ; the campus will deliver 120 MW of IT load over three phases. CloudHQ is quoted: 'As OS1 begins operations'. It says nothing about OS2's timing. evidence
ESR Group · published 2025-10-07
ESR's release of 29 August 2024: ESR completed the core and shell of ESR Cosmosquare OS1 Data Centre in Nanko Kita, Osaka, the first hyperscale asset of its 130 MW campus being developed over three phases (OS1, OS2 and OS3), within 10 km of the Osaka CBD exchanges; OS1 was to be ready for service in May 2025 with 25 MW once fitted out. evidence
ESR Group · published 2024-08-29
Plan summary of the first-phase building (OS1): building name （仮称）ESR南港データセンター新築工事, site 住之江区南港北1丁目, use その他（コンピューター室）, site area 8,068.12 m2, building area 4,967.54 m2, gross floor area 24,495.77 m2, steel frame, five storeys above ground, planned completion August 2024, CASBEE rank B+. It establishes that the campus's first building stands in Nanko-kita 1-chome on a site of about 8,068 m2; it does not concern OS2. evidence
Osaka City (大阪市 計画調整局) · publication date not stated
Source and location review
- Status source
- MLIT Housing Bureau: 構造方法等の認定に係る帳簿【建築物】 (register of structural-method certifications under the Building Standard Act, certifications 1 April 2013 to 30 September 2026) evidence row
Ministry of Land, Infrastructure, Transport and Tourism (国土交通省 住宅局 参事官（建築企画担当）) · published 2026-10-13 · Government record - Locator
- Campus locator · Compiled location reference · operator_published_campus_coordinate evidence
- Source checks
Not reviewed against imagery not_
reviewed
No imagery review is recorded for this project. Its status rests only on the dated authoritative source. · no independent imagery verificationStatus age at review: 69 days before the data update on 2026-10-27
Location details
- Coordinates
- 34.63940, 135.42107
- Geometry licence
- all-rights-reserved
- Use scope
- Campus locator
- Scope class
- operator_published_campus_coordinate
- Authority
- Compiled location reference
- Source entity
- Campus
- Method
- retain_operator_published_kix_campus_coordinates_checked_against_gsi_reverse_geocoder_moj_lots_and_imagery
- Derivation
- direct_geometry
- Precision scope
- CloudHQ's published coordinate for its Cosmosquare (KIX) campus, used unchanged. It lies inside MOJ lot 南港北1丁目5-2 (the OS1 site) at its south-west corner, within 6 m of lots 5-1 and 5-3 and 8.7 m from the centroid of the three-lot street block. It locates the campus, not the OS2 building: OS2's plot, footprint and entrance are not published.
- Horizontal uncertainty
Not reported
CloudHQ publishes the point to five decimals with no datum or accuracy statement, so the decimals are not survey precision; the campus block extends about 150 m from the point and OS2's position within the campus (or on an adjoining lot) is not published.
- Geometry evidence
- 5704cffd
A locator places the site on the map. It is not a building footprint, a construction extent or a surveyed boundary unless the use scope is an official boundary, and even then it is a parcel or permit boundary.
Evidence
Sources are linked, not redistributed; each keeps its own terms. An archived copy is a lookup for the Wayback Machine capture nearest the retrieval date and may be unavailable or differ from what was reviewed. Each hash states what it covers; imported factual records are not publisher-page captures.
| Title | Publisher | Roles | Published | Retrieved | Licence | Attribution | Content hash (SHA-256) |
|---|---|---|---|---|---|---|---|
| CloudHQ and ESR achieve LEED Gold certification for Cosmosquare OS1 data centre in Japan Archived copy | ESR Group Company disclosure | Site and project identity | all-rights-reserved | ESR Group Limited | 18f8cf3e060cd75137eed5d291d553f0d2fbef08bb805dd7915213f05739e694Retained source material; see source provenance | ||
| CloudHQ and ESR announce joint venture to co-develop and operate US$2 billion, 130 MW Cosmosquare Data Centre campus in Japan Archived copy | ESR Group Company disclosure | Site and project identity, Operator claim | all-rights-reserved | ESR Group Limited | 9da5b3004651f64d2417d0fd92f9e7a3a97435741d9ac98e13e885cf39bc1508Retained source material; see source provenance | ||
| CloudHQ: KIX Campus (Cosmosquare, Nanko Kita, Osaka City) campus page Archived copy | CloudHQ Company disclosure | Geometry | not stated | all-rights-reserved | CloudHQ | 5e9957945eb555b010e0a0fe53b6a362c9448862fbc709636c6c8acf4383041cRetained source material; see source provenance | |
| ESR completes phase 1 of its US$2 billion, 130 MW Cosmosquare Data Centre campus in Central Osaka, Japan Archived copy | ESR Group Company disclosure | Site and project identity | all-rights-reserved | ESR Group Limited | be8ac98c0dfa6c0ab2e0c2e6892f958059ac2320a6d6392d0e3a295f19a9cfd7Retained source material; see source provenance | ||
| GSI reverse geocoder: 34.63940, 135.42107 → 大阪市住之江区 (27125) 南港北一丁目 Archived copy | Geospatial Information Authority of Japan Map feature | Site and project identity | not stated | GSI content terms (attribution required) | Geospatial Information Authority of Japan | e6771a8c477a45fd93ed70121336d5912063d0f214beec4a225acb1b0671e1afRetained source material; see source provenance | |
| MLIT Housing Bureau: 構造方法等の認定に係る帳簿【建築物】 (register of structural-method certifications under the Building Standard Act, certifications 1 April 2013 to 30 September 2026) Archived copy | Ministry of Land, Infrastructure, Transport and Tourism (国土交通省 住宅局 参事官（建築企画担当）) Government record | Project announcement | Government of Japan Standard Terms of Use (PDL1.0-compatible; attribution required) | Ministry of Land, Infrastructure, Transport and Tourism (MLIT) | b6180152b2be0ac806848a6d7f683392344518ab56dc10754e64113844ed7558Retained source material; see source provenance | ||
| MOJ / AIGID 2026 registry-map geometry, Suminoe-ku (27125): 南港北1丁目5-1, 5-2, 5-3 and 14-1 Archived copy | AIGID; source registry map data by Japan Ministry of Justice Map feature | Site and project identity | not stated | CC-BY | Japan Ministry of Justice registry map data; AIGID GeoJSON conversion. Catalog license: Creative Commons Attribution. | 53c70a231e772e6ede3ae8e373dda51837004c04d2fa5bbd31f82ad6c16dea0dRetained source material; see source provenance | |
| Osaka City: 建築物環境計画書 plan summary R04-035h, （仮称）ESR南港データセンター新築工事 (CASBEE Osaka Mirai, FY2022 filings) Archived copy | Osaka City (大阪市 計画調整局) Government record | Site and project identity | not stated | all-rights-reserved | Osaka City | 8db76f01fa0b694118b9527ab288df0c4d19bb9f0b8b4a34196c0cfc08283e1bRetained source material; see source provenance |
Cite this site
Kyars, K. (2026). ESR / CloudHQ Cosmosquare Data Centre Campus (Nanko Kita, Osaka) [site vcc-site-1a523bfc9fdf63fb20e5]. In Data Center Atlas (2026-10-27) [Data set]. https://kiankyars.github.io/datacenter-atlas/sites/vcc-site-1a523bfc9fdf63fb20e5/
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