Chiba University Inohana Memorial Hall completed in 1963 is Fumihiko Maki's 2nd project in Japan, following Nagoya University Toyoda Memorial Hall (1960).
Its trapezoidal framework yields a symbolic silhouette towards the campus square.
Its fifty-year life and structural sensitivity raised by the 3.11 Great East Japan Earthquake led to a renovation plan pursued in 2013. Façade renovation included reinforcement of the main structure, the repair of cedar-board cement concrete walls, and partial reinstallation of glass curtain wall. Asbestos was carefully removed from the ceilings of the old auditorium and foyer, newly designed louvers were installed on the ceiling, and the stage was refinished by wood flooring. The seating area was redesigned to provide more space per seat and accommodated small desks, reducing the total number of seats from 720 to 526 on the first floor.
The soundproofing of the auditorium was also improved to better accommodate lectures and ceremonies, while stage sound equipment was also enhanced. MEP renovation included introduction of an occupied-zone HVAC system and LED lighting fixture with illumination and dimming controls.

Location：

Chiba City, Chiba, Japan

Completion Date：

2014

Building Type：

University, Auditorium

Structural System：

Reinforced Concrete, Prestressed Concrete

Number of Floors：

1 Basement + 3Stories

Site Area：

261,148.79m²

Building Area：

1,350.44m²

Total Floor Area：

2,351.64m²

Structural Engineer：

Hanawa Structural Engineers (Seismic Retrofit Design)

Mechanical / Electrical Engineer：

Sogo Consultants (Renovation Design)