1001 Smart Cities
🇯🇵 Kashiwa

Kashiwa-no-ha Smart City

🤖 AI-generated summary · ◆ 10 sourced claims · 🔎 Last verified

This overview was generated with AI from the public sources listed below and checked against them before publication. It has not had a complete human fact-check — treat it as a starting point and follow the sources.

10 sourced claims on this page, none individually verified yet — turn on “Sources in the text” to see each one.

How this atlas is made · What “last verified” means · What “source-checked” means · The full record behind this page

✎ Updated 26 Aug 2026 Evidence grade changed: independent → media. What changed →

Kashiwa-no-ha's energy-sharing grid and health programmes are steered by an urban design centre co-run by Mitsui Fudosan — the developer that built the 273-hectare district around it.

Outcome🔄 Ongoing
Evidence📰 Media
what does this mean?The strongest source is press reporting; no primary evaluation was located. It grades who did the looking — not how well the project went. All four grades →
Run byUrban Design Center Kashiwa-no-ha (UDCK)
Scale🏘️ District

Part of 1001 Smart Cities — 1,167 documented projects · 🏙️ Kashiwa city profile · 🔌 Smart grid & energy guide · ⚡ Energy projects

Urban Design Center Kashiwa-no-ha (UDCK) — a public, academic and private partnership of the University of Tokyo, Chiba University, Chiba Prefecture, Kashiwa City and developer Mitsui Fudosan — runs a 273-hectare development around three goals: new industry, health and longevity, and environmental harmony. An area energy management system visualises and redistributes power across the district's buildings, and a town health station and a community-run health lab sit above the shopping mall at its gate.

Live 📅 since 2014

📊 Impact

The Centre for Liveable Cities reports the area energy management system cutting the district's peak electricity consumption by 26%, and car ownership falling 10% over the development's first decade. Both figures reach the reader through a third party describing a developer-led partnership's own account; neither has been independently evaluated. The one outside judgement on the district is a certification: Mitsui Fudosan says Kashiwa-no-ha received the top LEED-ND Platinum rating in November 2016, the first development in Japan to do so.

🎓 Lesson

A certification grades a plan; it does not measure a place. Kashiwa-no-ha's most-cited credential rates the neighbourhood's design against a checklist, while the two numbers that would say whether the design works — peak demand down 26%, car ownership down 10% — come from the partnership that built it, relayed by a visiting institution. A district run jointly by a developer, two universities, a prefecture and a city has no shortage of bodies willing to describe it, and so far none that has audited it.

⚡ EnergySmart grid & energySmart districtsHealth & care

Sources

↗ Kashiwa-no-ha Smart City (operator) archived copyOfficial site of the organisation running the project.
↗ Hitachi Social Innovation (partner)Page of a partner involved in delivering the project.
↗ Mitsui Fudosan — Kashiwa-no-ha Smart City (developer)Developer's own project page: the three categories (new industry, health and longevity, environmental harmony), the AEMS area energy management system, and the November 2016 LEED-ND Platinum rating. No publication date shown.
↗ Centre for Liveable Cities, Singapore — More than a Smart City: Kashiwa-no-haUpdated 1 March 2025Singapore public-sector knowledge hub summarising the district: a 273ha development initiated by the Chiba Prefecture Government, the AEMS cutting peak consumption by 26%, the Town Health Station and Community Health Lab ASHITA, and a 10% fall in car ownership over the past decade. Shown as last updated 1 March 2025, with no original publication date.
Show your work What this page rests on and what it can’t tell you · all 10 claims with their sources · the forensic record

Evidence Passport · public beta 10 addressable claims, 4 source dossiers, one permanent baseline. The passport is unreviewed — an AI-assisted structural migration, not a human or expert endorsement. Every revision keeps a permanent copy under revision history.

Inspect the claims, one by one — verbatim text, sources and caveats for all 10

The text below is copied verbatim from the published record. Each claim names the source dossiers that carry it; caveats stay attached to the claim they qualify.

Claim 1 clm-e0cb00ba8b04a2ac descriptive
a public, academic and private partnership of the University of Tokyo, Chiba University, Chiba Prefecture, Kashiwa City and developer Mitsui Fudosan
Published field
snippet · verbatim
Mapping
mapped · no interpretation or interpolation added by this passport
What the mapping says
The Centre for Liveable Cities describes the governance as a public-private-academic partnership of Kashiwa City, Chiba Prefecture, Mitsui Fudosan, the University of Tokyo and Chiba University, coordinated through UDCK; the developer's page describes the same 'partnerships between the public, private and academic' basis.
Caveat
No claim-specific caveat recorded

Sources carrying this claim

  1. Centre for Liveable Cities, Singapore — More than a Smart City: Kashiwa-no-ha
  2. Mitsui Fudosan — Kashiwa-no-ha Smart City (developer)
Claim 2 clm-e3be7fc94674bea7 quantitative
runs a 273-hectare development around three goals: new industry, health and longevity, and environmental harmony
Published field
snippet · verbatim
Mapping
mapped · no interpretation or interpolation added by this passport
What the mapping says
The Centre for Liveable Cities: 'the Chiba Prefecture Government initiated this 273ha development at the northern part of Kashiwa City'. The developer's page organises the project under the three headings.
Caveat
No claim-specific caveat recorded

Sources carrying this claim

  1. Centre for Liveable Cities, Singapore — More than a Smart City: Kashiwa-no-ha
  2. Mitsui Fudosan — Kashiwa-no-ha Smart City (developer)
Claim 3 clm-9b0682a73c015332 descriptive
An area energy management system visualises and redistributes power across the district's buildings
Published field
snippet · verbatim
Mapping
mapped · no interpretation or interpolation added by this passport
What the mapping says
The Centre for Liveable Cities: 'The Area Energy Management System (AEMS) contains a system of independently-operated smart power grids that can visualise energy consumption. It can also efficiently optimise the distribution of energy from various sources of localised renewable energy producers.'
Caveat
No claim-specific caveat recorded

Sources carrying this claim

  1. Centre for Liveable Cities, Singapore — More than a Smart City: Kashiwa-no-ha
  2. Mitsui Fudosan — Kashiwa-no-ha Smart City (developer)
Claim 4 clm-cd4ba8b5adb6335a descriptive
a town health station and a community-run health lab sit above the shopping mall at its gate
Published field
snippet · verbatim
Mapping
mapped · no interpretation or interpolation added by this passport
What the mapping says
The Centre for Liveable Cities: 'Located on the third floor of the LaLaport Kashiwanoha is the Town Health Station, a one-stop healthcare support hub' and 'The Community Health Lab ASHITA is a community-run health information centre'.
Caveat
No claim-specific caveat recorded

Sources carrying this claim

  1. Centre for Liveable Cities, Singapore — More than a Smart City: Kashiwa-no-ha
Claim 5 clm-caefeb79be782dc1 quantitative
the area energy management system cutting the district's peak electricity consumption by 26%
Published field
impact · verbatim
Mapping
mapped · no interpretation or interpolation added by this passport
What the mapping says
The Centre for Liveable Cities: 'This system has successfully reduced the district's peak consumption by 26%.'
Caveat
No claim-specific caveat recorded

Sources carrying this claim

  1. Centre for Liveable Cities, Singapore — More than a Smart City: Kashiwa-no-ha
Claim 6 clm-0ffaf0439aaf34a3 quantitative
car ownership falling 10% over the development's first decade
Published field
impact · verbatim
Mapping
mapped · no interpretation or interpolation added by this passport
What the mapping says
The Centre for Liveable Cities: 'Over the past decade, Kashiwa-no-ha has seen a 10% reduction in automobile ownership, which in turn reduces carbon emissions and promotes a healthier lifestyle.'
Caveat
No claim-specific caveat recorded

Sources carrying this claim

  1. Centre for Liveable Cities, Singapore — More than a Smart City: Kashiwa-no-ha
Claim 7 clm-6f19a46985ef3217 descriptive
neither has been independently evaluated
Published field
impact · verbatim
Mapping
mapped · no interpretation or interpolation added by this passport
What the mapping says
Neither the developer, the operator's site nor the Centre for Liveable Cities cites an evaluation by a party outside the partnership; the CLC article is a descriptive case study, not an assessment.
Caveat
No claim-specific caveat recorded

Sources carrying this claim

  1. Centre for Liveable Cities, Singapore — More than a Smart City: Kashiwa-no-ha
  2. Mitsui Fudosan — Kashiwa-no-ha Smart City (developer)
  3. Kashiwa-no-ha Smart City (operator)
Claim 8 clm-a0cd156ef9b2f126 quantitative
Mitsui Fudosan says Kashiwa-no-ha received the top LEED-ND Platinum rating in November 2016, the first development in Japan to do so
Published field
impact · verbatim
Mapping
mapped · no interpretation or interpolation added by this passport
What the mapping says
Mitsui Fudosan: 'in November 2016 Kashiwa-no-ha Smart City received a Platinum rating, the highest granted, from the LEED-ND (neighborhood development) rating system, an international environmental certification, becoming the first development in Japan to receive the top rating.'
Caveat
No claim-specific caveat recorded

Sources carrying this claim

  1. Mitsui Fudosan — Kashiwa-no-ha Smart City (developer)
Claim 9 clm-f5c0dc08a7257559 descriptive
credential rates the neighbourhood's design against a checklist
Published field
lesson · verbatim
Mapping
mapped · no interpretation or interpolation added by this passport
What the mapping says
The developer describes the award as recognition 'for progressive urban development through public-private-academia partnership and setting environmental performance standards at a certain level for new construction' — a rating of the development plan, not a measurement of operation.
Caveat
No claim-specific caveat recorded

Sources carrying this claim

  1. Mitsui Fudosan — Kashiwa-no-ha Smart City (developer)
Claim 10 clm-cd228938fa992732 descriptive
come from the partnership that built it, relayed by a visiting institution
Published field
lesson · verbatim
Mapping
mapped · no interpretation or interpolation added by this passport
What the mapping says
Both figures appear in the Centre for Liveable Cities' descriptive case study, which names no measurement of its own and no source outside the partnership.
Caveat
No claim-specific caveat recorded

Sources carrying this claim

  1. Centre for Liveable Cities, Singapore — More than a Smart City: Kashiwa-no-ha
Forensic record — source dossiers, gaps, hashes and the exact revision this page renders

This layer records what is known about each source, what is still missing, and the exact snapshot this page is rendering. A missing date, archive or hash stays visible as missing.

unreviewed Revision 2026-08-27-p1-quality-uplift effective 2026-08-02 · created 2026-08-26

Awaiting operator and domain-expert review; publication of this revision implies neither.

Erratum on this revision's envelope. The snapshot, its hash and its permanent link are untouched.

  • createdAt previously read 2026-08-27T17:00:00Z. The batching script that produced this revision advanced createdAt into the future to satisfy the strictly-increasing order the validator requires per entity. The value never recorded a real event; the corrected value is the moment the revision provably existed in the repository. Corrected to 2026-08-26T23:41:56Z on 2026-08-27; evidence: first appears in commit ddeb6bde77, committed 2026-08-26T23:41:56Z.
sha256:c045d854d84f22a9a5e337b4004ffaf52f9af6e0c56790bf8d633166cdb42e30
Revision history → Permanent version link → Machine-readable record → Evidence Constitution →
10
of 10 claims mapped
4
source dossiers
0
publication dates recorded
1
archives linked
0
exact locators
0
content captures hashed

Governance facts carried by the record

Operator
Urban Design Center Kashiwa-no-ha (UDCK)
Actor types
city-government, research, private
Funding model
mixed
Funding description
Not recorded
Cost
Not recorded
Ownership
Not recorded
Decision rights
Not recorded
Exit conditions
Not recorded

4 source dossiers

Kashiwa-no-ha Smart City (operator) kashiwanoha-smartcity.com · 1 linked claim

Open original source ↗

Stable source ID
src-e6a139c42db923f0
Publisher
Name not classified · kashiwanoha-smartcity.com
Type / language
web-page · language not classified
Published
Not recorded
Updated
Not recorded
Source last checked
No source-level check date
Record last verified
2026-08-02
Dossier created
2026-08-27
Retrieved copy
No local capture recorded
Archive
Open archived copy ↗ · 2026-08-04
Content hash
No captured content hash
Locator
Open the recorded source note

Official site of the organisation running the project.

Descriptive only — not page/paragraph exact
Claims linked
Hitachi Social Innovation (partner) social-innovation.hitachi · background

Open original source ↗

Stable source ID
src-d24defef73aec538
Publisher
Name not classified · social-innovation.hitachi
Type / language
web-page · language not classified
Published
Not recorded
Updated
Not recorded
Source last checked
No source-level check date
Record last verified
2026-08-02
Dossier created
2026-08-27
Retrieved copy
No local capture recorded
Archive
No archived copy linked
Content hash
No captured content hash
Locator
Open the recorded source note

Page of a partner involved in delivering the project.

Descriptive only — not page/paragraph exact
Claims linked
Background source; no baseline claim points here
Mitsui Fudosan — Kashiwa-no-ha Smart City (developer) mitsuifudosan.co.jp · 6 linked claims

Open original source ↗

Stable source ID
src-a6d686c220fdcfe4
Publisher
Name not classified · mitsuifudosan.co.jp
Type / language
web-page · language not classified
Published
Not recorded
Updated
Not recorded
Source last checked
No source-level check date
Record last verified
2026-08-02
Dossier created
2026-08-27
Retrieved copy
No local capture recorded
Archive
No archived copy linked
Content hash
No captured content hash
Locator
Open the recorded source note

Developer's own project page: the three categories (new industry, health and longevity, environmental harmony), the AEMS area energy management system, and the November 2016 LEED-ND Platinum rating. No publication date shown.

Descriptive only — not page/paragraph exact
Claims linked
Centre for Liveable Cities, Singapore — More than a Smart City: Kashiwa-no-ha knowledgehub.clc.gov.sg · 8 linked claims

Open original source ↗

Stable source ID
src-1cd6f1ba3239408e
Publisher
Name not classified · knowledgehub.clc.gov.sg
Type / language
web-page · language not classified
Published
Not recorded
Updated
2025-03-01
Source last checked
No source-level check date
Record last verified
2026-08-02
Dossier created
2026-08-27
Retrieved copy
No local capture recorded
Archive
No archived copy linked
Content hash
No captured content hash
Locator
Open the recorded source note

Singapore public-sector knowledge hub summarising the district: a 273ha development initiated by the Chiba Prefecture Government, the AEMS cutting peak consumption by 26%, the Town Health Station and Community Health Lab ASHITA, and a 10% fall in car ownership over the past decade. Shown as last updated 1 March 2025, with no original publication date.

Descriptive only — not page/paragraph exact
Claims linked
Known limits of this passport
  • Publisher names and source languages have not yet been classified; domains are recorded without guessing.
  • Existing source notes are descriptive locators, not page- or paragraph-exact citations.
  • A missing archive, publication date or content hash is shown as null rather than inferred.
  • The project-level evidence grade ranks the strongest source in the entry; it is not a truth score for every claim.

Continue exploring

Compare this project

🇫🇷 Confluence Smarter Together Energy Grid · Lyon Two district energy programs a world apart: Lyon balances renewable supply across a converted dockland; Kashiwa shares power citywide. 🇳🇴 +CityxChange · Trondheim Different district energy models: Trondheim's blocks generate more than they use; Kashiwa's system instead shares power across buildings.

Explore the wider context

🪦 Why smart cities fail📖 Lighthouse project📖 Air quality index (AQI)📖 Building performance standard (BPS)
📎 Cite this project

1001 Smart Cities (2026). “Kashiwa-no-ha Smart City” — Kashiwa, Japan. The Smart City Atlas. https://1001smartcities.org/projects/kashiwanoha-smart-city/ (last verified 2026-08-02). Data: CC BY 4.0.

The underlying data is free to reuse with attribution — see the open data page.

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