Sanno Park Tower

A 44-story office tower completed in 2000 in Nagatacho, Chiyoda City, standing 183 meters tall. Adjacent to Hie Shrine, it occupies one of Tokyo's most politically charged addresses and remains one of the tallest towers in the Nagatacho district. Designed by Mitsubishi Jisho Sekkei.

Use

Office tower

Area

Chiyoda City

Completed

2000

Floors

44 above ground, 4 below

Height

183 m

Total floor area

approx. 219,216 m²

Developer

Mitsubishi Estate

Architect

Mitsubishi Jisho Sekkei

A High-Rise at the Foot of the Sanno Hill

At 2-11-1 Nagatacho, Chiyoda City, the Sanno Park Tower stands as a defining landmark of the Sanno hill district. Completed in 2000, it rises 44 floors above ground and four below, reaching a height of 183 meters. The building was designed by Mitsubishi Jisho Sekkei and built by a joint venture of Shimizu Corporation, Kajima Corporation, Obayashi Corporation, and Tokyu Construction. The developer was Mitsubishi Estate, and the gross floor area extends to approximately 219,216 square meters.

The tower’s neighbor to the south is Hie Shrine — historically known as Sanno Shrine — whose red torii gates mark the approach to a forest sanctuary that has stood at this address for centuries. The coexistence of a 183-meter office block with one of the city’s oldest Shinto shrines captures something essential about Tokyo’s urban landscape: the layering of different orders of time within a single address.

Politics, Finance, and the Name “Sanno”

Nagatacho is home to the National Diet Building, the Prime Minister’s Official Residence, and the headquarters of Japan’s major political parties — making it perhaps the most politically concentrated neighborhood in the country. Into this context, a private 44-story office tower arrived at the turn of the millennium, a signal that even the political quarter of Tokyo was open to high-rise commercial development.

The name “Sanno” derives from Hie Shrine, which was revered by the Tokugawa shogunate as the tutelary shrine of Edo Castle and remains an important presence in the neighborhood. The tower’s name acknowledges that relationship, grounding an otherwise conventional high-rise within the longer history of the hill it occupies. Among neighboring redevelopments — the Akasaka Biz Tower, the complexes in Toranomon — the Sanno Park Tower was an early marker, completing in 2000 before that wave of construction fully arrived.

Summary

Sanno Park Tower was completed in 2000 — 44 floors above ground, standing 183 meters tall. Designed by Mitsubishi Jisho Sekkei, it occupies a rare position adjacent to Hie Shrine in Tokyo’s political heartland. The National Diet Building and the Imperial Palace Outer Garden are both within walking distance, and the Sanno hill itself rewards a slow, attentive walk. The Akasaka and Nagatacho area has a range of accommodation options, offering a quieter alternative to the busier districts for visitors who want to explore this part of central Tokyo.

Related: Toranomon Hills Business Tower / Akasaka Intercity AIR / Tokyo Garden Terrace Kioicho