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Koto, Tokyo income buildings market report

Record counts, unit-price trends and a comparison against the Tokyo average, aggregated monthly by Urbalytics for income buildings listed in Koto, Tokyo. Latest month: September 2026.

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Tomioka Hachiman-gu 201·Tak1701d/CC BY-SA 3.0 (cropped)·Wikimedia Commons

Koto, Tokyo income buildings|overview

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Counts are income buildings listings in Koto, Tokyo for which a price could be obtained (on the market and closed). The commentary is derived mechanically from the figures on this page.

What the data says

  • At 272.7 ¥10k/tsubo, Price per tsubo of floor area for income buildings in Koto, Tokyo is the 18th highest of the 39 municipalities Tokyo publishes (ranked 18 of 39). The highest is 659.8 ¥10k/tsubo, the lowest 67.8 ¥10k/tsubo.
  • As of September 2026, Gross yield for income buildings in Koto, Tokyo is 5.11% — 11bps above the Tokyo average of 5.00% (61 records).
  • As of September 2026, Price per tsubo of floor area for income buildings in Koto, Tokyo is 258.2 ¥10k/tsubo — 2.0% below the Tokyo average of 263.5 ¥10k/tsubo (61 records).
Income building (listed)
61
September 2026・2.5% of Tokyo
See these 61 listingsFree sign-in required
office / retail unit (on offer)
228
September 2026・2.3% of Tokyo
Price per tsubo of floor area (median)
258.2 ¥10k/tsubo
vs Tokyo average −2.0%
September 2026・78.1 ¥10k/㎡
Price WatchIn August 2026, 21 income buildings listings in Koto (江東区) cut their asking price (median cut −4.8%).

income buildings: gross yield over time

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Gross yield = annual income ÷ asking price, before operating costs and vacancy. With rent held constant, a falling yield means a rising price.

Income building — Gross yield over time

Unit: %

Gross yield = annual income ÷ asking price, before operating costs and vacancy. With rent held constant, a falling yield means a rising price.

Koto, latest
5.11%
2026年9月
Whole period
+13.6%
vs May 2023
vs Tokyo
+11bps
baseline 5.00%
20th–80th percentile
4.10〜6.60%
the middle 60% · September 2026

April 2026 is a collection gap: One of our sources (Rakumachi) could not be collected for April 2026 alone, so the record count reads about 35% below the real figure. This is not a move in the market. That month is excluded from the trend and is not interpolated.

Source: monthly aggregates of listing and rental-offer data collected by Urbalytics

Conditions

  • Source: listings Urbalytics collects (on the market and closed)
  • Publication threshold: figures shown only for months with 10 or more records
  • Statistic: median (P20–P80 is the 20th to 80th percentile). Outliers removed by the IQR method
  • In a thin month (10–30 records) both the median and the P20–P80 band move on a single listing. Read them alongside the record count shown next to each figure.
  • Period: from 12 2022 — the window over which each property type is aggregated independently

What the data says

  • As of September 2026, Gross yield for income buildings in Koto, Tokyo is 5.11% — 11bps above the Tokyo average of 5.00% (61 records).
  • From May 2023 to September 2026, Gross yield for income buildings in Koto, Tokyo went from 4.50% to 5.11% — up (+61bps).

asking price and area for income buildings

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Income building — Asking price and Price per tsubo of floor area over time

Asking price = the median of prices published to the market. Read as a series, the level of the total shows where the market is moving.

Price per tsubo of floor area = asking price ÷ floor area. What the property is asking per unit of space (1 tsubo ≈ 3.31㎡).

Koto, latest
21,800 ¥10k
2026年9月
Whole period
+9.1%
vs May 2023
vs Tokyo
+28.2%
baseline 17,000 ¥10k
20th–80th percentile
9,800〜38,600 ¥10k
the middle 60% · September 2026

Asking price

Unit: ¥10k

Price per tsubo of floor area

Unit: ¥10k/tsubo

April 2026 is a collection gap: One of our sources (Rakumachi) could not be collected for April 2026 alone, so the record count reads about 35% below the real figure. This is not a move in the market. That month is excluded from the trend and is not interpolated.

Source: monthly aggregates of listing and rental-offer data collected by Urbalytics

Conditions

  • Source: listings Urbalytics collects (on the market and closed)
  • Publication threshold: figures shown only for months with 10 or more records
  • Statistic: median (P20–P80 is the 20th to 80th percentile). Outliers removed by the IQR method
  • In a thin month (10–30 records) both the median and the P20–P80 band move on a single listing. Read them alongside the record count shown next to each figure.
  • Period: from 12 2022 — the window over which each property type is aggregated independently

What the data says

  • As of September 2026, Price per tsubo of floor area for income buildings in Koto, Tokyo is 258.2 ¥10k/tsubo — 2.0% below the Tokyo average of 263.5 ¥10k/tsubo (61 records).
  • From May 2023 to September 2026, Price per tsubo of floor area for income buildings in Koto, Tokyo went from 210.2 ¥10k/tsubo to 258.2 ¥10k/tsubo — up (+22.8%).
  • From May 2023 to September 2026, Asking price for income buildings in Koto, Tokyo went from 19,990 ¥10k to 21,800 ¥10k — up (+9.1%).

Income building — Floor area and Land area over time

Floor area = the median Floor area among listed properties. At the same Price per tsubo of floor area, more space still means a higher total — which is why this is read alongside the price series. (1 tsubo ≈ 3.31㎡)

Land area = the median land area among listed properties. It is the denominator under the per-tsubo buildable price, and Within one area, a change in plot size moves the total. (1 tsubo ≈ 3.31㎡)

Koto, latest
70.8tsubo
2026年9月
Whole period
−12.0%
vs May 2023
vs Tokyo
+4.7%
baseline 67.7tsubo
20th–80th percentile
37.7〜121.0tsubo
the middle 60% · September 2026

Floor area

Unit: tsubo

Land area

Unit: tsubo

April 2026 is a collection gap: One of our sources (Rakumachi) could not be collected for April 2026 alone, so the record count reads about 35% below the real figure. This is not a move in the market. That month is excluded from the trend and is not interpolated.

Source: monthly aggregates of listing and rental-offer data collected by Urbalytics

Conditions

  • Source: listings Urbalytics collects (on the market and closed)
  • Area: building area is gross floor area (exclusive area for condominium units); land area is the registered figure
  • Publication threshold: figures shown only for months with 10 or more records
  • Statistic: median (P20–P80 is the 20th to 80th percentile)
  • Unit: tsubo (1 tsubo ≈ 3.31㎡), matched to the unit the per-tsubo price multiplies against

What the data says

  • As of September 2026, Floor area for income buildings in Koto, Tokyo is 70.8tsubo — 4.7% above the Tokyo average of 67.7tsubo (61 records).
  • As of September 2026, land area for income buildings in Koto, Tokyo is 32.7tsubo — 14.1% below the Tokyo average of 38.1tsubo (61 records).

Asking rent and area over time

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Total rent = monthly rent + common charges; rent per unit area is that divided by area. Area is the variable between the two — a month where only the total moved is a month where the space on offer changed, not the price.

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income buildings: listings over time

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Detailed distributions and trends are available on a free account.

Monthly report (PDF)

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Monthly aggregate reports for income buildings in Koto, Tokyo(through August 2026). Free to download, no account needed. Later months can be exported in the same format from “Save as PDF” at the top of this page.

Figures on this page are derived statistics: monthly aggregates of listing and rental-offer data collected by Urbalytics. They are not individual transaction records.

Income building prices by station in Koto, Tokyo

Stations in Koto, Tokyo, most data first. Each is aggregated over listings within walking distance of the station.

Station photographs from Wikimedia Commons (author and licence are given on each station’s own report page).

Income building prices in areas near Koto, Tokyo

Municipalities with a Income building report, nearest to Koto, Tokyo first. Distance is measured between municipality centres.

Area photographs from Wikimedia Commons (author and licence for each are given on that area’s own report page).

Prices by postal code in Koto, Tokyo

Postal codes in Koto, Tokyo, most data first. Counts are sale and rental records across the period.

Articles on Koto, Tokyo

Urbalytics analysis written about Koto, Tokyo.

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