Chapter 4 Expansion

1989

→

2003

Section 1. Creating New Urban Spaces

2. The Hibiya Daibiru Rebuilding Project

The Hibiya Daibiru Buildings started operating on December 1, 1958, when the requisitioning of the buildings was lifted. The buildings evolved over time together with their most prominent tenants, but with the company’s medium- and long-term management plan established in 1982, the decision was made to rebuild them. At the time, there was extremely strong demand for office space in central Tokyo, and supply was unable to keep up. Building construction standards had changed significantly from when the original Hibiya Daibiru Buildings were constructed. A new requirement to include a parking lot had been added, and it was also possible to construct buildings with 37% more floor area. This meant it was now possible to create roughly 3,636 m2 of new office space in downtown Tokyo, where land was scarce and valuable. At the time, the office rental market in downtown Tokyo was strongly a landlord’s market, with a large gap between the rental rates for existing space and new space, so if the entire floor area after rebuilding could be converted to the new rental rates, Daibiru would be able to count on a significant increase in income. Buildings No. 1 and No. 2 had been completed in 1927 and 1931, respectively, so they were both nearly 60 years old. Aging was an additional factor in the decision to rebuild.

  • The Mita-Nitto Daibiru Building, which served as a temporary home for Hibiya Daibiru tenants

And so Daibiru hatched its plans to rebuild the Hibiya Daibiru Buildings. For this plan, the company considered from an operational perspective whether the two buildings should be rebuilt together or separately in stages and made assumptions for both possibilities. A joint redevelopment project involving the adjacent Nittochi Building was also considered, but no agreement was reached on this matter, so the plan was to construct the new buildings independently.

The biggest concern regarding the rebuild was finding a temporarily location for the tenants. Since Greater Tokyo was strongly a landlord’s market at the time, it was impossible to find a property with equivalent location, floor area, grade, and so on. In the end, the company decided to use the Mita-Nitto Daibiru Building, which was then under construction, as a temporary home for the tenants. Once the agreement of the most prominent tenants was obtained, the rebuilding plan went into full swing.

The basic plan decided upon in 1985 was to proceed in the following order:

  1. Demolish Building No. 1 and construct a high-rise building (phase I) on its site.
  2. Operate Building No. 2 normally while the demolition and construction of Building No. 1 are underway.
  3. Afterward, demolish Building No. 2 and construct a low-rise building (phase II).

It included as its basic policy the following: that the buildings should positively impact the neighborhood environment even after many years, should not become obsolete in their functions, and should symbolize Daibiru’s presence in Tokyo in their appearance; that the buildings should emphasize cost-effectiveness, functionality, and safety; that the buildings should emphasize savings in labor and energy; and that the buildings should be intelligent buildings with computerized functions.