What is the Building Standard Law of Japan and why is it important?
The Building Standard Law of Japan (BSL) is a law that regulates the design, construction, use and maintenance of buildings in Japan. It aims to ensure the safety, health and welfare of the people who live or work in buildings, as well as to promote the quality and efficiency of buildings. The BSL was enacted in 1950 and has been revised several times since then to reflect the changes in society, technology and environment.
The BSL covers various aspects of buildings, such as structural strength, fire prevention, earthquake resistance, sanitation, ventilation, lighting, noise control, energy conservation and barrier-free design. The BSL also sets standards for building sites, such as land use, setback, height limit and parking space. The BSL applies to all types of buildings, including residential, commercial, industrial and public buildings.
Building Standard Law Of Japan.pdf
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The BSL requires that anyone who intends to construct a new building or alter an existing building must submit a plan to the local government and obtain confirmation that the plan conforms to the BSL before starting the construction work. The local government also conducts inspections during and after the construction work to verify that the building complies with the BSL. The BSL also imposes obligations on the owners of buildings to maintain their buildings properly and to take corrective measures if their buildings are found to be in violation of the BSL or pose a threat to public safety.
The BSL is an important law that protects the lives and properties of the people from various hazards and disasters that may occur in buildings. The BSL also contributes to the improvement of the living environment and the urban landscape in Japan. The BSL is enforced by the Ministry of Land, Infrastructure, Transport and Tourism (MLIT) at the national level and by the designated administrative agencies (DAA) at the local level. The MLIT and the DAA also provide guidance and assistance to the public on how to comply with the BSL.
If you want to learn more about the BSL, you can download a PDF file of the English translation of the BSL from this website[^1^]. You can also find more information about the notifications and guidelines issued by the MLIT related to the BSL from this website[^3^].
How does the BSL affect building design and construction in Japan?
The BSL sets various technical standards for building design and construction in Japan, such as minimum floor area, ceiling height, window size, fire resistance, earthquake resistance, sound insulation and ventilation. These standards vary depending on the use district, the type and purpose of the building, and the number of stories. The BSL also requires that certain buildings must be designed and supervised by qualified architects or engineers who have passed the national examination and obtained a license from the MLIT.
The BSL also regulates the process of building construction in Japan, such as application for confirmation, inspection, notification and reporting. The application for confirmation is a procedure where the applicant submits a plan of the building to the DAA and obtains confirmation that the plan conforms to the BSL before starting the construction work. The inspection is a procedure where the DAA or a person designated by the MLIT inspects the building during and after the construction work to verify that the building complies with the BSL. The notification and reporting are procedures where the applicant or the owner of the building notifies or reports to the DAA or the MLIT about certain matters related to the building, such as commencement of construction work, completion of construction work, change of use or ownership, or occurrence of damage.
What are some examples of buildings that comply with the BSL in Japan?
There are many examples of buildings that comply with the BSL in Japan, ranging from traditional wooden houses to modern skyscrapers. Some of them are listed below:
The Tokyo Skytree is a broadcasting tower and a landmark of Tokyo. It is 634 meters high and has two observation decks at 350 meters and 450 meters. It is designed to withstand strong earthquakes and winds by using a triangular cross-section, a central concrete core, and a steel frame structure. It also has advanced fire prevention measures, such as sprinklers, fire doors, smoke vents, and emergency stairs. It was completed in 2012 and confirmed by the Tokyo Metropolitan Government.
The Kyoto Station Building is a complex that includes a railway station, a hotel, a shopping mall, a museum, and an event hall. It is located in Kyoto, an ancient capital of Japan that has many cultural heritage sites. It is designed to harmonize with the historical landscape of Kyoto by using a grid-like structure, a large glass roof, and natural materials. It also has high energy efficiency and environmental performance by using solar panels, natural ventilation, rainwater harvesting, and waste heat recovery. It was completed in 1997 and confirmed by the Kyoto Prefectural Government.
The Takayama Jinya is a historical building that was used as a government office and a residence by feudal lords during the Edo period (1603-1868). It is located in Takayama, a city in Gifu Prefecture that has preserved its traditional streetscape. It is designed to adapt to the climate and culture of Takayama by using local timber, clay walls, thatched roofs, sliding doors, tatami mats, and earthen floors. It also has features that reflect its function as a government office, such as an interrogation room, a rice storehouse, and a torture chamber. It was built in 1692 and designated as a national historic site by the MLIT.
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