Japan Cultural Heritage Consultancy

Office Location

Iwanami-shoten Hitotsubashi Building 13F
2-5-5 Hitotsubashi, Chiyada-ku, Tokyo
Postal code: 101-0003
Phone : +81 (0)3 5276-8200
Fax : +81 (0)3 5276-8201
E-mail contact[at]b-hozon.co.jp

Company registrations
  • First Class Architectural Office
  • Construction Business Consultancy, Construction division
  • Organization for providing technical guidance for formulating proposals regarding improvement of aseismic capacity of Important Cultural Properties (buildings) (Accredited by Agency for Cultural Affairs)
  • Organization for providing technical guidance on design and supervision of conservation of Registered Cultural Properties (buildings) under nationally subsidized project (Accredited by the Agency for Cultural Affairs)
・Specialists with national qualifications:

Conservation architects accredited by Agency for Cultural Affairs(文化財建造物修理主任技術者), Qualified architects(一級および二級建築士), Qualified construction consultant(技術士), Qualified construction managers (一級土木施工管理技士), Assistant Registered Surveyors(測量士補), Registered Civil Engineering Consulting Manager(RCCM)

・Other specialists:

Architectural technicians, landscape architects, archaeologists, historians, heritage consultants

Total number: 49


April 1970


Founded as Hafu Zokei Research Institute in April 1970

Re-organized into Tokyo Office of Conservation Science Research Organization in April 1975

Re-organized into Japan Cultural Heritage Consultancy in June 1979

Business operation division was separated into a stock company in July 1987



In recent years, the concept and values of cultural properties have expanded and become more diversified. In addition to scientific and educational perspectives, there has been an ongoing discussion as to how cultural properties should be more functional within our living environment, and how to better position them as integral elements of our cultural environment. Given such change, it has become necessary to not only preserve individual cultural properties as they are, but to consider conserving them in groups or in non-static manners.

We believe that cultural properties can be an anchor for communities. By recognizing their potential value, elucidating the historical background, cultural context and local characteristics, as well as incorporating them into urban planning and regional planning, the cultural heritage left by our forebears contributes to strengthening local identity and serves as an attraction for cultural tourism.

The conservation and restoration techniques for cultural properties that we have today are at a high level globally, thanks to the tireless efforts of our predecessors. We consider it important to build upon these techniques, and take a more integrated approach to cultural property conservation: a comprehensive process - from restoration and environmental improvement, to planning and management ? carried out in accordance with the natural and social sciences and in collaboration with engineers and designers.

Since the founding of our company 50 years ago, we have remained committed to improving people’s cultural environment. We consider it our mission to collaborate with the owners and administrators of cultural properties and local people, while researching methods for conservation planning, and fully drawing upon the techniques backed by accumulated experiences.

Profile of Company Representative

Kazuyuki Yano, CEO

代表取締役 矢野 和之


Born in Kumamoto Prefecture


Co-founded Hafu Zokei Research Institute


Obtained Master’s degree in Architecture from Graduate Institute of Engineering, Musashi Institute of Technology (Currently called Tokyo City University)


Completed Doctor program in Architecture at the Graduate Institute of Engineering, Musashi Institute of Technology


Became CEO of the Japan Cultural Heritage Consultancy in 1987

Positions outside of the company:

Board member and Secretary General, ICOMOS National Committee of Japan
Vice president, The Japanese Society for the Study of Archaeological Sites
Executive secretary, Association for conservation technology of stonewalls as cultural properties
Representative, Organization for archiving works of architect Kenji Hirose

Main publications:

Yomigaeru Kofun Bunka (Resurrected Kofun Culture)
Kukan Ryuri (Wandering Spaces) as cultural properties
Rekishi wo mirai ni tsunagu machizukuri michizukuri
(Passing on the history to the future) (co-authored)

Company Awards

Award Work/project awarded Location Year
The 5th Competition of excellent architecture using copper, First Prize Ancient Life Interactive Center, Saitobaru Archaeological Museum Saito City, Miyazaki Prefecture 1997
The 6th Shimane Landscape Award, Award of Excellence (Category of structures and others) Yamashiro-futagozuka Kofun Matsue City, Shimane Prefecture 1999
The 22nd Tohoku Architecture Prize, Encouragement Prize Kosaka Town Community Center (Awardee and main designer: Seki Kukan Sekkei, Co. Ltd.) Kosaka Town, Akita Prefecture 2002
The 1oth Sendai City Townscape Award, Special Award Project on the vista from the Sendai Castle remains and for restoration of its stonewalls? Sendai City, Miyagi Prefecture 2008
The 22nd Nagano City Landscape Award Chokkura Oirai kan, an old merchant house, annex to the Nagano City Museum Nagano City, Nagano Prefecture 2009
Civil Engineering Design Grand Prize Horikawa Canal in Aburatsu Nichinan City, Miyazaki Prefecture 2010
Good Design Award 2010,
Civil Engineering Design Encouragement Prize
The Site of Kitazawa dressing and flotation plants for ore dressing and the The Site of Kitazawa dressing and flotation plants for ore dressing and the Oma Port, former Sado Mine Sado City, Niigata Prefecture 2010
The 18th Ishikawa Landscape Award Yamashiro Onsen, Public bath, Old Public Bath, Yunogawa Kaga City, Ishikawa Prefecture 2011
2012 Good Design Award of the Japan Chamber of Commerce and Industry Yamashiro Onsen, Yunogawa Kaga City, Ishikawa Prefecture 2012
Hokkaido Red Brick Architectural Award
Public Architecture Association, Best Prize
Hakodate Magistrate’s Office Hakodate City, Hokkaido Prefecture 2012
Japan Institute of Landscape Architecture Prize Scenic Beauty Rakuzan-en Environment Improvement Project Kanra Town, Gunma Prefecture 2013
Japan Shikkui Association, Best Work Prize Bank of Iwate Red Brick Building Morioka City, Iwate Prefecture 2017
Prize of Excellence, Civil Engineering Design Prize Mimikawa revetment Hyuga City, Miyazaki Prefecture 2018
The 28th AACA Special Prize, by Japan Association of Artist Craftsmen and Architects Jikido hall, Yakushiji Temple Nara City, Nara Prefecture 2018
Townscape Grand Award, Special Award Yuino hiroba Hirari district, Hirano, Yamanakako Village Yamanakako Town, Yamanashi Prefecture 2019
Japan Society of Civil Engineers, Tanaka Prize Tottori Castle Historic Site, Giboshi Bridge Tottori City, Tottori Prefecture 2019
Japan Society of Civil Engineers, Tanaka Prize Tokiwabashi Bridge restoration project Chiyoda Ward, Tokyo 2020
Commendation as excellent work of construction, Bureau of Construction in Tokyo Metropolitan Government Architectural planning and construction supervision on reconstruction project for the Karamon gate in Koishikawa-Korakuen Gardens Bunkyo Ward, Tokyo 2021
Special Award of Civil Engineering, Japan Federation of Construction Contractors Tokiwabashi Bridge restoration project Chiyoda Ward, Tokyo 2021
The 23rd Award of the Japan Society of Seismic Isolation Practical Achievement Award Keio University Library Minato Ward, Tokyo 2022
Japan Society of Civil Engineers, Tanaka Prize Restoration works for Minobashi Bridge, Important Cultural Property Mino City, Gifu Prefecture 2022
2021 Japan Construction Engineers’ Association, ZENKEN Prize Restoration works for Minobashi Bridge, Important Cultural Property Mino City, Gifu Prefecture 2022