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Office Specifications Changing with Time
Examining the office pyramid in depth

In this report, Xymax Real Estate Institute (“Xymax REI”) describes the changes in the specifications of buildings that constitute the office stock explained in Tokyo 23 Wards Office Pyramid 2019,*1 released on January 23, 2019, by size of building and year of completion. It also examines the situation of quakeproof measures (e.g. repairs) in old seismic standard buildings (buildings completed in or before 1981).
Please note that the office pyramid survey is based on the data of 9,206 buildings in the Tokyo 23 Wards but that the results may differ from current figures if there have been changes in building specifications (e.g. an increase in electrical power capacity due to renovation) since the time the data were collected.

  1. *1TOKYO 23 WARDS | Office Stock Pyramid 2019, released on January 23, 2019

1. Data and Completion Year of Buildings Used in This Report

[Building specification data]

As in Tokyo 23 Wards Office Pyramid 2019 (Number of Buildings), the following buildings were the subject of this report (1 tsubo = approx. 3.3 sqm):

  • ● 9,206 buildings in Tokyo 23 Wards with a gross floor area of 300 tsubo or more used mainly for offices
  • ● Buildings completed between 1946 and 2019
  • ● Small & medium-sized buildings refer to buildings with a gross floor area of 300–5,000 tsubo, and large buildings refer to those with a gross floor area of 5,000 tsubo or more

Data of the specifications of the buildings above (as of when the data were collected) that could be confirmed in for-rent documents were used in this report.

[Year of completion]

The buildings were classified into years of “before 1979,” “1980–1999” and “2000 or later” (Figure 1).

Figure 1: Office Pyramid 2019 (Number of Buildings)
Figure 1: Office Pyramid 2019 (Number of Buildings)
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