Work

Dai-ichi Life Hibiya First

Dai-ichi Life Hibiya First, known from 1995 to 2022 as DN Tower 21 (for Dai-ichi and Norinchukin), is an office high-rise in Tokyo, Japan. It was erected in 1988–1995 on the site of the respective former head office buildings of Dai-ichi Life and Norinchukin Bank, both designed by architect Jin Watanabe and completed in 1938 and 1933 respectively. The site is historically significant for having hosted Douglas MacArt…

building

built

1993

Yūrakuchō, Yūrakuchō, Japan

Office building

tower office Office building

Compare this work More works here Map nearby works View city page View region page View country page Open source record

Gallery

Hero image, caption, credit, source, and license are attached to the work record.

Dai-ichi Life Hibiya First in Yūrakuchō, Japan

Gallery

Dai-ichi Life Hibiya First gallery

Dai-ichi Life Hibiya First image

Image associated with Dai-ichi Life Hibiya First.

Credit:

Rights: Unknown · unknown

View related work Wikipedia Unknown

Architects

Bureaus

Books

Phase 1 site intelligence

Runtime context from mapping, climate, transit, and access providers

Gathering site context

Pulling place, climate, and nearby mobility signals for this work.

Project source graph

Primary, verified, captured, and archive traces attached to this work

Assembling project-source coverage

Pulling canonical links, verified sources, captured candidates, archive traces, and Phase 2 environmental context.

Phase 3 materials and carbon

Material palette, carbon research, and classification scaffolding around the work

Building the material and carbon layer

Normalizing the palette, checking public classification systems, and preparing product-level research handoffs.

Architects

People attached to this work in the current corpus

Architect

Kevin Roche

1922-2019 · Dublin, Leinster, Ireland

Role: lead architect

Primary contributor

Kevin Roche was an Irish-born American architect and Pritzker laureate whose work linked modern corporate and civic architecture with refined spatial order.

Bureaus

Practices attached to this work in the current corpus

Bureau