Greater Taipei managed apartment buildings - research file (built 2026-10-31)
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17,403 rows: every apartment building in Taipei City (9,702) and New Taipei City
(7,701) with a management organisation registered with the city
(公寓大廈管理組織報備). 14,889 have a management committee (管理委員會) and 2,514
a single building manager (管理負責人). Re-filings of the same organisation are
merged, and withdrawn or cancelled registrations (撤銷, 註銷) are left out.

Taiwan's version of a strata or condo is a building that has registered one of
these organisations. Buildings that never registered are not in the file. Taipei
says about 73% of its eligible buildings had registered by March 2025.

Sources and credits
-------------------
All city datasets are under the Open Government Data License, version 1.0
(政府資料開放授權條款-第1版), which is compatible with CC BY 4.0. Credit the
agencies below when you reuse the file.

- Taipei City Construction Management Office, 臺北市公寓大廈組織報備查詢
  (data.taipei): committees, names, addresses, permit numbers, registration dates
- Taipei City Construction Management Office, 臺北市歷年使用執照摘要
  (occupancy permit summaries 2001-2026): units (戶數), floors, buildings, completion date
- New Taipei City Public Works Department, 公寓大廈管理組織報備清冊 (data.ntpc.gov.tw):
  committees, names, addresses, permit numbers, registration dates
- New Taipei City Public Works Department, 新北市建築執照存查 (occupancy permits 2002-2026):
  units (households), floors, completion date
- Taipei City and New Taipei City Civil Affairs departments, 門牌位置數值資料
  (doorplate registers, 3.1 million door and floor entries): locations, unit estimates,
  highest floor
- OpenStreetMap, (c) OpenStreetMap contributors, ODbL 1.0: building outlines used for
  unit estimates, a few floor counts and English names, and the city and district
  boundaries, roads and water on the map. If you share a database made from this
  file, keep the OSM-derived parts under ODbL and credit OpenStreetMap.

Coverage
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on the map 96% · units 95% · floors 93% · year 99% · English name 1%

Units come from:
  occupancy permit                                       8,786 rows (exact)
  estimate: doors and floors inside the building outline 3,852 rows
  estimate: doors and floors at the listed address       3,832 rows
  none                                                     933 rows

Known limits
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- Unit estimates are counts of registered doors and floors in the doorplate
  register (each "No. 5, 3rd floor" is one unit). Checked against about 3,900
  buildings that also have a permit count, the median ratio for the outline method was 1.00
  for buildings under 100 units and 0.78-0.96 for 100-299. Large complexes
  (300+ units) are undercounted, often by half, because they span several outlines.
  Shops and offices with their own door number are counted too, so mixed-use
  buildings come out high.
- Permit records only go back to 2001 (Taipei) and 2002 (New Taipei), so older
  buildings mostly have estimates.
- A permit shared by several committees (separate towers on one permit) is not
  split: those rows use estimates instead.
- Year: the completion date on the permit where there is one, otherwise the year of
  the occupancy permit (年 + 1911), which is normally the completion year.
- Floors: from the permit, or the highest floor in the doorplate register. Values
  over 70 were dropped as errors.
- 718 rows (273 Taipei, 445 New Taipei) are not on the map: their address is missing,
  is only a street, or is not in the doorplate register. They are in the CSV with
  blank coordinates.
- Building names come from the organisation name with the committee/manager suffix
  removed. 26 names contain "?" where the source lost a rare character.
- English names exist for very few buildings. District and city names are in
  English and Chinese.