About us

Commitment to Quality

ISO9001 (quality management system) certification acquired by Tokyo head office.
We have introduced a quality management system in the Yamashita Sekkei Tokyo Head Office applicable to our building design operations and construction supervision operations. Our aim is to raise customer satisfaction by providing quality services matched to customer needs.


Applicable standards
JISQ9001:2008 / ISO9001:2008
Certification date
September 2, 1998
Certification body
The Building Center of Japan(BCJ)
Certificate number
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