Building Control in Japan - Part C - Chapter 5 Basic Legal Documents and Technical Documents in Japan

Oct 24, 2026

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Building Control in Japan - Part C explains how basic legal documents and technical documents support Japan’s building regulatory system. It distinguishes groups of technical requirements—Group A (safety and amenity), Group B (city plan), and Group C (infrastructure)—and maps how laws translate into mandatory checks during the building confirmation process. CPL and BSL are identified as core legal documents, with BSL providing a building confirmation system ensuring compliance across groups. It also outlines the roles of central government and local authorities and introduces major related standards and laws.

LanguageEnglish

CategoryResearch & Report

FormatPDF

Pages58

Reading Time2 h 26 min

AccessFree to download

Chapter 5 Basic Legal Documents and Technical Documents in Japan

Basic legal documents in Japan

Technical documents in Japan

Means of determining the system through attached documents

Chapter 6 Building Standard Law (roles and documents)

Chapter 7 Laws related to Building Standard Law

Building Control in Japan ‐ Part C ‐ by HASEGAWA Tomohiro 日本の建築規制長谷川知弘 Ver. 1910 ‐ Table of Contents and Abbreviations ‐ Part A Building Control System in General ‐ Part B Background Information ‐ Part C Building Regulatory System | Chapter 5 | Basic Legal Documents and Technical Documents in Japan | | --- | --- | | Chapter 6 | Building Standard Law | | Chapter 7 | Laws related to Building Standard Law | | Chapter 8 | Building Regulatory System based on Building Standard Law | | Chapter 9 | Sub‐systems | ‐ Part D Technical Requirements for Building Safety and Amenity (Group A) ‐ Part E Technical Requirements from the viewpoint of City Planning (Group B) ‐ Part F Technical Requirements from the viewpoint of Land‐development (Group C) ‐ Annexes (under construction) 1 Chapter 5 Basic Legal Documents and Technical Documents in Japan Means of ‘Basic Legal Document‘and‘Technical Document’are shown in Part A. Basic Legal Documents in Japan CPL (City Planning Law) and BSL (Building Standard Law) are basic legal documents for building control in Japan. CPL and BSL stipulate necessary provisions for each group of technical requirements as shown below. It is the characteristic of Japan that BSL provides building confirmation system and countermeasures, and ensures compliance of both Group A and Group B. In the other words, in the building confirmation process, not only Group B but also Group B are examined through the documents attached to the application. | | Technical Requirements | | | | --- | --- | --- | --- | | | Group A
(safety and amenity) | Group B (city plan) | Group C
(infrastructure) | | How to determine city plan | ‐ | CPL | ‐ | | To require buildings to comply with technical requirements | BSL requires buildings to comply with technical requirements . | | CPL requires land‐development activities to comply with technical requirements . | | Official procedure, such as building permission | BSL provides building confirmation system similar with building permission system in other countries . | | CPL provides land‐development permission system . | | Countermeasures against violation | BSL provides countermeasures . | | CPL provides countermeasures . | * FSL (Fire Service Law) is also Basic Legal Document only for fire extinguishing equipment, etc. 3 Technical Documents in Japan Technical requirements of each group are provided in the documents as shown below. | | Group of Technical Requirements | | | | --- | --- | --- | --- | | | Group A
(safety and amenity) | Group B (city plan) | Group C (infrastructure) | | Documents providing technical requirements | BSL and other related laws (See next page.) | CPL and BSL | CPL and BSL | It is the characteristic of Japan that technical requirements of Group A are provided in not only BSL but also other various Law. Details are as shown below. In the building confirmation process, these all mandatory requirements are examined through the documents attached to the application. | Items of technical requirements of Group A | | Technical Documents providing technical
requirements | | --- | --- | --- | | Fire safety | Fire extinguishing equipment, etc . |
Fire Service Law | | | Fire‐ resistance, evacuation, etc . | | | Structural safety | | Building Standard Law | | Hygienic safety | | | | Accessibility of Handicapped people | |
Barrier‐free Law | | Energy saving | |
Energy Saving Law | Chapter 6 Building Standard Law BSL (Building Standard Law) and its related documents As mentioned above, BSL (Building Standard Law) and documents which are issued under the Law have a dual role of: ‐ Basic Legal Document, and ‐ Technical Documents . Outline of roles of these documents is as shown below. Central Government is responsible for No.1, 2, 3, 4 and 5, while local authorities are responsible for No.6 . | Documents | Person to determine | Contents | | --- | --- | --- | | No.1

(BSL) Buildin

FAQs

What are the basic legal documents for building control in Japan?

CPL (City Planning Law) and BSL (Building Standard Law) are presented as the basic legal documents. They establish provisions needed for technical requirements across groups.

How do technical requirements relate to building confirmation in Japan?

Technical requirements for each group are examined through documents attached to the application. This ensures compliance not only with Group B but also with Group A during the building confirmation process.

What documents issued under BSL have a dual role?

Documents issued under BSL have a dual role as both a basic legal document and technical documents. The text summarizes how central government and local authorities determine different numbered document sets.

Oct 24, 2026

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