Japan / Site
PDG TY1 · TY1
PDG's two-building hyperscale colocation campus in Saitama City, Greater Tokyo, has a reported ultimate IT capacity of 96 MW. Phase 1 launched on 24 April 2025; contemporary reporting described continuing Phase 1 fit-out and Phase 2 site preparation. DC2 assessment documentation describes a build in progress with estimated live services on 30 June 2028. The campus capacity should not be treated as fully commissioned operational power.
Site / building photo
PDG-published TY1 campus property photo accompanying the April 2025 launch release; capture date not disclosed.
Published date unknown · Captured date unknown · Checked 2026-10-09
Research-selected property image; reviewer must confirm site identity, suitability and rights before publication.
princetondg.com · Source and attribution ↗Published and attributed to Princeton Digital Group through its official release. Photographer and reuse license not disclosed; reviewer must resolve import rights. URL path is not evidence of capture date. Publication and capture dates were not independently established.
Statements retain their dates, definitions and development scope. Do not add these rows together.
| Claim / measurement | Scope and status | As of | Evidence and accounting |
|---|---|---|---|
| 96 MW IT load | Ultimate two-building TY1 campus capacity; includes operational Phase 1 and subsequent build-out Planned · cumulative | 2025-04-24 | Reported claim ↗ Excluded from capacity totals. As-of is announcement date. Release presents campus IT capacity at launch; Phase 1 reporting and DC2 assessment prevent interpreting all 96 MW as commissioned. |
| 48 MW IT load | TY1 DC1 design critical IT capacity Under Construction · incremental | 2025-01-31 | Reported claim ↗ Excluded from capacity totals. As-of is original self-assessment completion date, not document publication or commissioning date. Assessment forecasts live services on 24 April 2025; later reporting confirms launch but continuing fit-out. |
| 48 MW IT load | TY1 DC2 design critical IT capacity Under Construction · incremental | 2025-01-31 | Reported claim ↗ Excluded from capacity totals. As-of is original self-assessment completion date. Document describes build in progress and estimated live services on 30 June 2028. Included within campus capacity, not additive to 96 MW. |
| ≈100 MW IT load | Historical ultimate campus development Planned · cumulative | 2022-06-13 | Conflicting claim ↗ Excluded from capacity totals. As-of is groundbreaking release date. Body says close to 100 MW IT; later announcements specify 96 MW. Retained as historical competing scope, not additional capacity. |
Lendlease and PDG marked commencement of phased campus development.
Supporting source ↗Completion of the building shell was announced; this was not an operational commissioning announcement.
Supporting source ↗March 2024 release forecast readiness for service in Q4 2024; subsequent launch announcement is dated April 2025.
Supporting source ↗Operator announced campus launch; Japanese reporting identifies the operating portion as Phase 1.
Supporting source ↗PDG announced TY1 certification and NVIDIA DGX-Ready liquid-cooling partner certification.
Supporting source ↗April 2025 reporting said all Phase 1 floors were expected to finish fit-out by the end of December 2026.
Supporting source ↗Date appears in DC2 self-assessment; current schedule confirmation remains unavailable.
Supporting source ↗Historical disclosed arrangement; current legal title and ownership vehicle remain unconfirmed. PDG invests in and operates mechanical and electrical infrastructure.
Source ↗Campus-wide developer disclosure; directory figures differ slightly.
Source ↗Planned full development in 2022, not verified completed area.
Source ↗Design self-assessment; not evidence all area is fitted out or occupied.
Source ↗Assessment also gives a hall multiplication that does not exactly match the stated total; retain stated value pending reconciliation.
Source ↗Operator launch capability claim; not average installed rack density or a disclosed rack count.
Source ↗Launch release describes liquid cooling; factsheet specifies N+1 chillers, dual chilled-water loops and thermal energy storage exceeding four minutes.
Source ↗Factsheet design description; voltage and backup duration are not MW grid capacity claims.
Source ↗Operator disclosure; DC1 assessment additionally describes four carriers ready to bring fibre and four onsite entry points.
Source ↗Announced August 2025. Does not establish full-campus operational commissioning.
Source ↗March 2024 developer release describes a target, not an awarded certification.
Source ↗Developer claim applies to construction and landscaping, not proof of zero-carbon operation.
Source ↗Disclosed at 2022 groundbreaking.
Source ↗Source attribution does not imply independent verification or permission to reuse images.
Published 2025-04-24 · Retrieved 2026-10-09
PDG announces launch in Saitama City, Japan, with 96 MW IT capacity, 140 kW rack density, liquid cooling and carrier-neutral connectivity.
Published Date unavailable · Retrieved 2026-10-09
Operator describes TY1 as a two-building campus in Saitama City, Greater Tokyo, with 96 MW capacity; location link is N/A.
Published Date unavailable · Retrieved 2026-10-09
Self-assessment dated 31 January 2025 gives 2-1917 Nissincho address, 48 MW critical IT power, multi-tenant development, white space and utility/cooling details.
Published Date unavailable · Retrieved 2026-10-09
Self-assessment dated 31 January 2025 identifies TY1-DC2 at the same address, 48 MW critical IT power, build in progress and estimated live services 30 June 2028; internal location-name cell says PDG TY2.
Published 2024-03-27 · Retrieved 2026-10-09
Phase 1 core and shell completed; six-storey 48 MW facility on approximately 33,000 square metres of campus land. Built to suit for PDG under Lendlease Data Centre Partners; Q4 2024 service was a forecast.
Published 2025-04-28 · Retrieved 2026-10-09
Reports Phase 1 launch on 24 April, two 48 MW phases, Phase 1 floor fit-out planned through December 2026 and adjacent Phase 2 land preparation at the time of reporting.
Published Date unavailable · Retrieved 2026-10-09
Operator identifies a 96 MW hyperscale campus in Saitama Prefecture, Japan, with carrier-neutral connectivity, PUE below 1.34, redundant chilled-water infrastructure and diverse 66 kV power feeds; publication date not established.
Published 2025-08-06 · Retrieved 2026-10-09
PDG announces TY1 OCP Ready v2 certification and NVIDIA DGX-Ready liquid-cooling partner certification.
Published 2022-06-13 · Retrieved 2026-10-09
Groundbreaking release describes long-term lease to PDG, Lendlease core/shell development, PDG mechanical/electrical investment and operation, more than 60,000 square metres ultimate gross floor area and close to 100 MW IT capacity.
Published Date unavailable · Retrieved 2026-10-09
Directory corroborates 2-1917 Nissincho and two constituent buildings, but its descriptive text says 98 MW while its listing title says 96 MW; undated conflicting claim.
Published Date unavailable · Retrieved 2026-10-09
PDG-published TY1 campus property photo accompanying the April 2025 launch release; capture date not disclosed. Original image: https://princetondg.com/wp-content/uploads/2025/04/TY1-offcial-photo-2.1-scaled.jpg
Name: Princeton Digital Group Launches One of Japan’s Largest AI-Ready Data Centers with USD 1 Billion TY1 Campus in Greater Tokyo; Where We Operate — Japan TY1
Aliases: Where We Operate — Japan TY1; OCP Ready v2 for Hyperscale Data Center Site Assessment — PDG TY1-DC1
Kind: Where We Operate — Japan TY1
Country: Princeton Digital Group Launches One of Japan’s Largest AI-Ready Data Centers with USD 1 Billion TY1 Campus in Greater Tokyo; OCP Ready v2 for Hyperscale Data Center Site Assessment — PDG TY1-DC1
Region: OCP Ready v2 for Hyperscale Data Center Site Assessment — PDG TY1-DC1; TY1 Tokyo Factsheet
City: Princeton Digital Group Launches One of Japan’s Largest AI-Ready Data Centers with USD 1 Billion TY1 Campus in Greater Tokyo; OCP Ready v2 for Hyperscale Data Center Site Assessment — PDG TY1-DC1
Metro: Princeton Digital Group Launches One of Japan’s Largest AI-Ready Data Centers with USD 1 Billion TY1 Campus in Greater Tokyo; Where We Operate — Japan TY1
Address: OCP Ready v2 for Hyperscale Data Center Site Assessment — PDG TY1-DC1; OCP Ready v2 for Hyperscale Data Center Site Assessment — PDG TY1-DC2; Princeton Digital TY1 Campus
Operator: Princeton Digital Group Launches One of Japan’s Largest AI-Ready Data Centers with USD 1 Billion TY1 Campus in Greater Tokyo; Lendlease commences construction on 100 MW data centre campus in Japan for Princeton Digital Group
Business Model: OCP Ready v2 for Hyperscale Data Center Site Assessment — PDG TY1-DC1; Princeton Digital Group Becomes First Operator in Asia Pacific to Earn OCP Ready v2 for Hyperscale certification
Scale: TY1 Tokyo Factsheet
Statuses: プリンストン・デジタル・グループ、国内初設置のデータセンター「TY1キャンパス」1期棟を稼働開始; OCP Ready v2 for Hyperscale Data Center Site Assessment — PDG TY1-DC2
Summary: Princeton Digital Group Launches One of Japan’s Largest AI-Ready Data Centers with USD 1 Billion TY1 Campus in Greater Tokyo; Where We Operate — Japan TY1; OCP Ready v2 for Hyperscale Data Center Site Assessment — PDG TY1-DC2; プリンストン・デジタル・グループ、国内初設置のデータセンター「TY1キャンパス」1期棟を稼働開始
Location: OCP Ready v2 for Hyperscale Data Center Site Assessment — PDG TY1-DC1; OCP Ready v2 for Hyperscale Data Center Site Assessment — PDG TY1-DC2
Stable identifier: 896f4f6e-276e-4988-8137-d0ce5bb219d3