Enforcement record

Directive against 西武建設株式会社

西武建設株式会社 (Construction Business Act)

This page is one enforcement record linked to a confirmed legal entity. Company-level Official Gazette notices, registry data, related-company signals, and other public records are collected on the company profile.

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Construction Business ActKantō Regional Development BureauConfirmed entity match21 July 2023

Action type

Directive

Law

Construction Business Act

Authority

Kantō Regional Development Bureau

Action date

21 July 2023

Current page: Enforcement record

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Source verification

Public-source and preservation status

Publishing authority
Kantō Regional Development Bureau
Official source URL
Recorded by RegBase
Entity match
Confirmed against the current entity-resolution policy
Kiroku preservation
Archive not completed

“Confirmed” means that RegBase matched this record to the cited public disclosure or entity under the stated checks. It does not verify the truth of the disclosure or guarantee the entity’s current status, creditworthiness, or any legal conclusion.

Open the official source links in the section below to review the original disclosure.

For developers: JSON integration details

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/api/v1/enforcements?corporate_number=3013301006249&limit=10
Open JSONSpecs

Action summary

Company
西武建設株式会社Japanese original
Original: 西武建設株式会社
Corporate Number: 3013301006249
Entity match
Confirmed entity match100/100Machine checked
source_corporate_number_nta_current_name
国税庁法人番号データとの独立照合で対象法人を確認しました（source_corporate_number_nta_current_name）。
Governing law
Construction Business Act
建設業法
Action type
Directive
指示
Action date
21 July 2023
Issuing authority
Kantō Regional Development Bureau
関東地方整備局
Industry context
建設業者

Violation

Machine-translated summary — verify against original

Seibu Kensetsu Co., Ltd. violated Article 15, Item 2 of the Construction Business Act by assigning personnel who did not meet qualification requirements as the sole technical officer at its office. This violation is recognized as falling under Article 28, Paragraph 1 of the Act. The company is located at 1-11-1 Kusunoki-dai, Tokorozawa City, Saitama Prefecture, with permit number Kokkyo Kotsu Daijin (Toku-4) No. 002389. The order, issued by the Kanto Regional Development Bureau on July 21, 2023, includes measures to prevent recurrence, such as promptly informing staff of the violation and sanctions, conducting training to ensure compliance with relevant laws, and reviewing internal operations and management systems. The company’s representative is Sato Makoto. The violation involved placing personnel who did not meet qualification requirements as the technical officer, which is a breach of the Construction Business Act. The order emphasizes the need for the company to implement necessary corrective actions and report in writing.

Show original Japanese text

西武建設株式会社は、建設業法第１５条第２号の規定に違反して、資格要件を満たさない者を営業所の専任技術者として配置していた。 このことが、建設業法第２８条第１項本文に該当すると認められる。

Business location and permit details

Business location address
埼玉県所沢市くすのき台１－１１－１
Representative
佐藤 誠
Permit / registration number
国土交通大臣（特－４）第002389号
Permitted business types
Civil engineering works, Building works, Carpentry works, Scaffolding, earthwork, and concrete works, Stone works, Roof works, Electrical works, Pipe works, 夕, Steel structure works, Paving works, Dredging works, Glass works, Painting works, Waterproofing works, Interior finishing works, Machinery and equipment installation works, Landscaping works, Fittings works, Water facilities works, Demolition works
Legal articles
建設業法第28条第1項本文
Cause of action
西武建設株式会社は、建設業法第１５条第２号の規定に違反して、資格要件を満たさない者を営業所の専任技術者として配置していた。 このことが、建設業法第２８条第１項本文に該当すると認められる。
Overview page
https://www.mlit.go.jp/nega-inf/cgi-bin/search.cgi?jigyoubunya=kensetugyousya&EID=search&no=1220

These fields are extracted from the original Japanese disclosure or linked overview pages when available.

Compliance context

Medium

A regulator issued a directive requiring specified action.

Construction business law covering licensing, contractor obligations, and public-interest rules for construction work.

Verify the required action and whether the company has disclosed remediation or completion.

This context is an operational aid for review workflows, not a credit opinion or legal conclusion.

Open original sources and verification detailsOfficial URL, direct PDF, and Kiroku archive
Original Kantō Regional Development Bureau source (Japanese)
Extracted at
2026-07-17T11:56:25.97+00:00
Evidence checked
2026-07-17T08:51:00.821+00:00
Archive captured
Not archived
Show audit JSON
{
  "record": {
    "id": "d7d3299b-1895-4326-a5fb-28f5c776db57",
    "url": "https://regbase.jp/en/enforcement/kensetsu-gyoho-xi-wu-jian-she-20230721-2",
    "company_name_original": "西武建設株式会社",
    "company_name_registry": "西武建設株式会社",
    "corporate_number": "3013301006249",
    "law": {
      "ja": "建設業法",
      "en": "Construction Business Act"
    },
    "action_type": {
      "ja": "指示",
      "en": "Directive"
    },
    "authority": {
      "ja": "関東地方整備局",
      "en": "Kantō Regional Development Bureau"
    }
  },
  "entity_match": {
    "status": "confirmed",
    "confidence": 100,
    "method": "source_corporate_number_nta_current_name",
    "method_label": "source_corporate_number_nta_current_name",
    "notes": "国税庁法人番号データとの独立照合で対象法人を確認しました（source_corporate_number_nta_current_name）。"
  },
  "review": {
    "status": "machine_reviewed",
    "label": "Machine checked"
  },
  "compliance_context": {
    "severity": "Medium",
    "actionMeaning": "A regulator issued a directive requiring specified action.",
    "practicalNote": "Verify the required action and whether the company has disclosed remediation or completion.",
    "lawContext": "Construction business law covering licensing, contractor obligations, and public-interest rules for construction work."
  },
  "evidence": {
    "recordUrl": "https://regbase.jp/en/enforcement/kensetsu-gyoho-xi-wu-jian-she-20230721-2",
    "officialSourceUrl": "https://www.mlit.go.jp/nega-inf/cgi-bin/search.cgi?jigyoubunya=kensetugyousya&EID=search&no=1220",
    "officialDocumentUrl": null,
    "archiveUrl": null,
    "archivedSourceUrl": null,
    "archiveCapturedAt": null,
    "extractedAt": "2026-07-17T11:56:25.97+00:00",
    "translatedAt": "2026-07-18T15:20:14.817+00:00",
    "evidenceCheckedAt": "2026-07-17T08:51:00.821+00:00",
    "generatedAt": "2026-09-11T19:31:53.458Z"
  },
  "limitations": [
    "RegBase aggregates public Japanese government disclosures and does not provide a credit opinion.",
    "English summaries are provided for reference. The original Japanese source is authoritative.",
    "Possible or unresolved entity matches should be manually verified before use in a decision."
  ]
}

The original Japanese disclosure is the authoritative record. Use possible or unresolved matches only as leads for manual review.

Language

日本語版を見る (Japanese)

Company info

English name
西武建設株式会社 Japanese original
Japanese name
西武建設株式会社
Corporate Number
3013301006249
Registered address
東京都豊島区長崎５丁目１番３４号
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About this recordAggregated and translated from public Japanese government disclosures. The English text is for reference only — authoritative content is the linked Japanese source.