Kohyama Atelier's Hisao Kohyama and Sachio Hasegawa to Guest Star! Theatre Seminar Latest Series "Theatre Architecture Seminar" ~Theatre Architects Talk About Their Own Works~ Vol.01 to be Held

Theatre Workshop Co., Ltd. (Headquarters: Shibuya-ku, Tokyo; Representative Director: Masashi Ito) will hold a new seminar series, "Theatre Architecture Seminar," which considers the future of theaters.

The first volume, Vol.01, will be held on Friday, April 24, 2026, at P.O. Minami Aoyama Hall (Minato-ku, Tokyo), featuring Mr. Hisao Kohyama, Chairman of Kohyama Atelier Co., Ltd. (Bunkyo-ku, Tokyo), and Mr. Sachio Hasegawa, Representative Director and President, who will speak about their theater architecture works designed to date.

Each seminar in this series will invite architects with extensive experience in theater design as guests to talk about their thoughts and design points for theaters. By making it a series, we aim to understand the current state of theater architecture in modern Japan and, at the same time, consider with the participants what roles these facilities should play and what they should achieve.

Vol.01 Guests

Chairman, Kohyama Atelier

Hisao Kohyama

Architect, Professor Emeritus at the University of Tokyo, Honorary Member of the American Institute of Architects, Chairman of Kohyama Atelier. Born in Tokyo in 1937.

Graduated from the Department of Architecture, University of Tokyo, completed graduate studies at the University of Pennsylvania, and served as Professor at the University of Tokyo, Meiji University, and the Open University of Japan.

His works include Seigakuin University Chapel (Japan Art Academy Award), Saitama Arts Theater (Architectural Institute of Japan Award, Murano Togo Award, American Theatre Technology Award), Sekikawa Village Museum, Yayoi Auditorium at the University of Tokyo, Kumano Hongu-kan (Architectural Institute of Japan Award), Ito Center at the University of Tokyo, ROHM Theatre Kyoto, and others.

His books include "Thirteen Chapters for Architecture Lovers" and "Lectures on Architectural Design."

Received the Architectural Institute of Japan Grand Prize in 2021.

Representative Director and President, Kohyama Atelier

Sachio Hasegawa

Representative Director and President of Kohyama Atelier. Assumed current position in 2021.

Graduated from the Department of Architecture, Faculty of Engineering, Tokyo University of Science. Since Saitama Arts Theater, he has been responsible for all theater designs at Kohyama Atelier, including Kanagawa Arts Theatre, Tokyo Metropolitan Theatre (renovation), Honokuni Toyohashi Arts Theatre, Kani City Cultural Creation Center, Hita Citizen's Culture Hall, Taketa City General Culture Hall, Naha Cultural Arts Theater, Laporte Gosen, Kawaguchi General Culture Hall (renovation), and others. Currently, Theatre Mado (Marugame), Naruto City Culture Hall renovation, and National Theatre redevelopment are underway.

Member of the Architectural Institute of Japan Cultural Facilities Subcommittee, JATET Director, Advisor to the Japan Association of Theatre Engineers, ITEAC2023 Committee Member, recipient of numerous awards including the Wooden Architecture Award, BCS Award, and Good Design Award.

＜Event Overview＞

"Theatre Architecture Seminar" ~Theatre Architects Talk About Their Own Works~ Vol.01

■ Date and Time: Friday, April 24, 2026, Doors open 18:00 / Start 18:30 (approx. 90 minutes without break) + Social gathering

■ Venue: P.O. Minami Aoyama Hall

■ Fee (tax included): General 5,000 yen

　　　　　　　　 U-30 2,000 yen (limited quantity, for those under 30 on the day of the event, ID required)

　　　　　　　　 Online participation 2,000 yen

■ Official HP / Ticket Purchase: https://theatre-workshop.co.jp/seminar/kenchiku/

■ Venue

P.O. Minami Aoyama Hall

B1F Pola Aoyama Building, 2-5-17 Minami Aoyama, Minato-ku, Tokyo 107-0062

Official HP https://po-hall.jp/

【Access】

■ 2-minute walk from Aoyama-itchome Station (Tokyo Metro Ginza Line / Hanzomon Line / Toei Oedo Line)

■ 5-minute walk from Gaienmae Station (Tokyo Metro Ginza Line)

＜Caution＞

・Please check the official website and ticket purchase page for ticket purchases, online viewing methods, and archive distribution.

・Personal information registered will only be used for the operation and management of this seminar and for providing information on our seminars, events, and services. Please refer to Theatre Workshop's Privacy Policy here (https://theatre-workshop.co.jp/privacy).

・Photos and videos will be taken by the organizer and media. Participants may be captured in images.

・Captured footage may be exposed/published in advertisements after the event, and by media outlets such as TV/newspapers/magazines/WEB, so please be aware in advance.

About "Theatre Architecture Seminar" ~Theatre Architects Talk About Their Own Works~

Theatre Workshop has previously conducted seminars from various perspectives under the theme of "Considering the Future of Theaters."

This time, we are holding a new series, "Theatre Architecture Seminar." Each time, we will invite architects with extensive experience in theater design as guests to talk about their thoughts and design points for theaters. By making it a series, we aim to understand the current state of theater architecture in modern Japan and, at the same time, consider with the participants what roles these facilities should play and what they should achieve.

Click here to view this press release in PDF format

Click here to view the flyer in PDF format

＜Theatre Workshop Co., Ltd.＞

Theatre Workshop is a total theater production company that handles everything related to theaters and halls.

Our wish is to create an environment where everyone can enjoy life with theaters.

We bring together 40 years of know-how from building over 300 theaters and long years of experience in hall management to provide all services related to theaters and halls, from conceptualization and planning, design, construction, and operation consulting, to post-opening theater management and event planning and production.

We connect those who build theaters and those who use them, producing a life with theaters.

Official HP:https://theatre-workshop.co.jp/