DayOne Kouvola Koria Data Center Campus

Name: DayOne Kouvola Koria Data Center Campus
Address: FI

Under construction

Finland · 1 project · Last reported 2026-09-20

Summary

DayOne's Form F-1, filed October 5, 2026, reports that as of September 20, 2026 all 281 MW of Bookings at its two Greater Helsinki campuses, in Lahti and Kouvola, are Capacity Under Construction: planning, core and shell construction and MEP fit-out are actively underway, and the capacity is not yet ready for service. The Kouvola campus is the Hyperco and DayOne joint-venture data centre in Koria's Hiivuri industrial area, where the city reported construction starting in May 2025 and topping-out in May 2026. September 20 is the filing's stated as-of date, not a site inspection. evidence

DayOne Data Centers Limited via SEC EDGAR · published 2026-10-05

Location

The interactive map needs JavaScript. Display anchor: 60.84449, 26.63056 (Point locator, WGS 84).

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Project locator; building footprints are not mapped.

Projects (1)

DayOne Kouvola Koria Data Center — current build

Under construction last observed as of 2026-09-20 · Authoritative status update

The city reports that the data centre being built at Koria, Kouvola, has reached topping-out and is progressing to plan. A joint venture of Hyperco and DayOne is responsible for building it, and TikTok will be its end user. DayOne's Nordic director and Hyperco's CEO are quoted; YIT and Caverion are named partners. Preparations for the operating phase and related recruitment were expected in the following months. evidence

City of Kouvola · published 2026-05-11

The city reports that construction of the data centre Hyperco is developing in Korian Hiivuri has started. It is built in the Hiivuri area, zoned for industry, where Hyperco bought a 12.5-hectare industrial plot from the city in December 2024. A building permit has been granted for a data-centre building with a total area of 34,000 square metres; the permits are legally valid. The first construction phase was expected to take about 18 months. evidence

City of Kouvola · published 2025-05-07

The city's technical board considered a preliminary sale to Hyperco Fin Holdco 1 Oy of about 11.66 hectares in Korian Hiivuri, adjacent to the data-centre project. Hyperco had already bought a 12.49-hectare area from the city for the data-centre project. evidence

City of Kouvola · published 2025-01-23

DayOne describes a 281 MW renewable-powered Finland platform with two campuses, in Lahti and Kouvola, and a local development partnership with Hyperco. It lists the DayOne Lahti Data Center and the DayOne Kouvola Data Center, stating that DayOne partnered with Hyperco to develop the Kouvola project. evidence

DayOne Data Centers · publication date not stated

The National Land Survey cadastral service returns parcel 286-463-6-4 in ETRS-TM35FIN (EPSG:3067), with a lifespan version dated June 13, 2025. Its polygon measures 12.483 hectares, consistent with the 12.49-hectare area the city sold to Hyperco. evidence

National Land Survey of Finland (NLS) · publication date not stated

The national Permit and Supervision Authority gave public notice of an Environmental Protection Act application by Hyperco Fin Holdco 1 Oy concerning a substantial change to the Hiivuri data centre's activity and starting the activity despite appeal, case LVV-U/106925/2026. The application documents are on public display from September 30 to November 6, 2026. evidence

City of Kouvola / Lupa- ja valvontavirasto · published 2026-09-30

Companies

Owner: DayOne Data Centers Limited (current) evidence
Owner: Hyperco (current) evidence
Tenant: TikTok (intended) evidence

Source and location review

Status source

DayOne Data Centers Limited Form F-1 registration statement, filed October 5, 2026 (Internet Archive copy of the EDGAR document) evidence row
DayOne Data Centers Limited via SEC EDGAR · published 2026-10-05 · Regulatory filing

Locator

Project locator · Official source · official_permit_building_reference_point 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 verification

Status age at review: 37 days before the data update on 2026-10-27

Location details

Coordinates: 60.84449, 26.63056
Geometry licence: CC-BY-4.0
Use scope: Project locator
Scope class: official_permit_building_reference_point
Authority: Official source
Source entity: Campus
Method: ryhti_official_permit_building_point_as_project_locator
Derivation: direct_geometry
Precision scope: Ryhti reference point for permanent building 1042154966, the 34,751 m2 main data-centre building under permit 302380625P (decided August 14, 2024) on property 286-463-6-4. It is a project locator, not a building footprint, parcel, campus boundary, entrance, survey point or work-at-point claim.
Horizontal uncertainty: Not reported
Ryhti publishes a building reference point without a horizontal accuracy statement.
Geometry evidence: 91bdbc7b

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.

Evidence for DayOne Kouvola Koria Data Center Campus
Title	Publisher	Roles	Published	Retrieved	Licence	Attribution	Content hash (SHA-256)
City of Kouvola relays Permit and Supervision Authority notice: Hiivuri data-centre operation change and start despite appeal (LVV-U/106925/2026) Archived copy	City of Kouvola / Lupa- ja valvontavirasto Government record	Site and project identity	2026-09-30	2026-10-16	no-open-license-asserted	City of Kouvola; Lupa- ja valvontavirasto	`ceef8dc70cddd4690b15020bbf4fc5198609a41ba970b106f9afe1e8866636d9` Retained source material; see source provenance
City of Kouvola: additional land presale to Hyperco Fin Holdco 1 Oy for the Hiivuri data-centre project Archived copy	City of Kouvola Government record	Site and project identity	2025-01-23	2026-10-16	no-open-license-asserted	City of Kouvola	`ce3efea7e43fd2b195c4d2f769a01843570eb0faebac341e924bcd5640007415` Retained source material; see source provenance
City of Kouvola: construction of Hyperco's Korian Hiivuri data centre has started (TikTok main user) Archived copy	City of Kouvola Government record	Site and project identity	2025-05-07	2026-10-16	no-open-license-asserted	City of Kouvola	`9d36324954097b2ba6701569600dfd924be305e2123e6a665acec496b0e0ac82` Retained source material; see source provenance
City of Kouvola: Koria data-centre project celebrates topping-out (Hyperco and DayOne joint venture) Archived copy	City of Kouvola Government record	Site and project identity, Owner claim, Tenant claim	2026-05-11	2026-10-16	no-open-license-asserted	City of Kouvola	`a9a3b2d3ddd3a4c9d421320b5933bfd29e4c45467139cfb7bb1d5555fe2930e9` Retained source material; see source provenance
DayOne Data Centers Limited Form F-1 registration statement, filed October 5, 2026 (Internet Archive copy of the EDGAR document) Archived copy	DayOne Data Centers Limited via SEC EDGAR Regulatory filing	Physical status, Operator claim, Owner claim	2026-10-05	2026-10-16	source-terms-not-recorded	DayOne Data Centers Limited; U.S. Securities and Exchange Commission EDGAR; archived by the Internet Archive Wayback Machine	`ef2d8312d6f912c7480d5e7a5e54b11c47918e85c16c4ae5a436871445aab2f0` Retained source material; see source provenance
DayOne: Finland data center market page (Lahti and Kouvola campuses) Archived copy	DayOne Data Centers Company disclosure	Site and project identity	not stated	2026-10-16	all-rights-reserved	DayOne Data Centers	`4c1a2c0475eaa2c4697cfe272b3f41412b6f0cc3c12a09f59700352f36bd567c` Retained source material; see source provenance
NLS INSPIRE cadastral parcel 286-463-6-4 (Kouvola, Hiivuri) Archived copy	National Land Survey of Finland (NLS) Government record	Site and project identity	not stated	2026-10-16	CC-BY-4.0	Contains data from the National Land Survey of Finland INSPIRE Cadastral Parcels WFS, licensed under CC BY 4.0; retrieved 2026-10-16.	`d73ed71d5701835871e4bf46b26e93e7ef6d2ee7b173a70e51f0d65177681e1f` Retained source material; see source provenance
Ryhti open permit buildings: permit 302380625P, Kouvola property 286-463-6-4 Archived copy	Finnish Environment Institute Ryhti Government record	Geometry	not stated	2026-10-16	CC-BY-4.0	Finnish Environment Institute Ryhti; CC BY 4.0	`6eb7d21a834ea6ba6156799c26c02615d518e150a28ba74d7ef1751e61ff9b9d` Retained source material; see source provenance

Cite this site

Kyars, K. (2026). DayOne Kouvola Koria Data Center Campus [site vcc-site-4c87177eb4819af9906b]. In Data Center Atlas (2026-10-27) [Data set]. https://kiankyars.github.io/datacenter-atlas/sites/vcc-site-4c87177eb4819af9906b/

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