HIBIYA CROSSPARK chosen as name for Tokyo Uchisaiwaicho mega project
- Adam German

- Apr 15
- 2 min read
Developers behind the large-scale redevelopment of the Uchisaiwaicho 1-chome district in Tokyo’s Chiyoda Ward announced on April 14 that the project will be named HIBIYA CROSSPARK.

Exterior CG rendering courtesy of R.E. Port News.
The project is a major mixed-use development spanning roughly 1.1 million square meters and divided into three zones: North, Central, and South.
The North District will include the new main building of The Imperial Hotel, Tokyo, along with a mixed-use tower featuring offices, retail, serviced apartments, and rental residences. The site covers about 2.4 hectares.
The hotel will provide roughly 150,000 square meters of floor space across 29 above-ground floors and four basement levels, while the adjacent tower will offer about 270,000 square meters across 46 above-ground floors and four basement levels.
The Central District will feature NTT Hibiya Tower, a mixed-use building housing office, retail space, a hotel, and facilities supporting industrial innovation. The site spans about 2.2 hectares, with a total floor area of roughly 360,000 square meters, rising 48 stories above ground with six basement levels.
The South District will include another mixed-use tower incorporating offices, retail space, a hotel, and wellness-focused facilities. The building will occupy a site of about 1.9 hectares and provide roughly 290,000 square meters of floor area across 46 above-ground floors and three basement levels.
The newly unveiled logo incorporates a bold design inspired by the character “hi” (日)—the first character in Hibiya. Developers also introduced the district’s guiding concept, “A place where new currents begin,” intended to express the role and spirit the new urban district aims to embody.
Construction will proceed in phases, with the South District tower scheduled for completion in fiscal 2028, followed by the Central District’s NTT Hibiya Tower in fiscal 2031.
The development consortium includes NTT Corporation, NTT Urban Solutions, NTT Urban Development, NTT East, Dai-ichi Life Insurance, Chuo-Nittochi Co., Imperial Hotel Co., Tokyo Century Corp., Tokyo Electric Power Company Holdings (TEPCO), and Mitsui Fudosan.
Source:
R.E. Port News (Japanese only)



