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Market report

神奈川県足柄上郡開成町 houses market report

Record counts, unit-price trends and a comparison against the 神奈川県 average, aggregated monthly by Urbalytics for houses listed in 神奈川県足柄上郡開成町. Latest month: August 2026.

OER 3100-3·Snow rabbit at Japanese Wikipedia/CC BY-SA 3.0 (cropped)·Wikimedia Commons

神奈川県足柄上郡開成町 houses|overview

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Counts are houses listings in 神奈川県足柄上郡開成町 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

  • From March 2025 to January 2026, Price per tsubo of floor area for houses in 神奈川県足柄上郡開成町 went from 90.9M JPY/tsubo to 97.9M JPY/tsubo — up (+7.6%).
House (listed)
5
August 2026・0.1% of 神奈川県
house (on offer)
3
August 2026・0.2% of 神奈川県

asking price and area for houses

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House — 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㎡).

開成町, latest
2,880M JPY
2026年1月
Whole period
−3.5%
vs March 2025
vs 神奈川県
−32.7%
baseline 4,280M JPY
20th–80th percentile
1,990〜3,480M JPY
the middle 60% · January 2026

Asking price

Unit: M JPY

Price per tsubo of floor area

Unit: M JPY/tsubo

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

  • From March 2025 to January 2026, Price per tsubo of floor area for houses in 神奈川県足柄上郡開成町 went from 90.9M JPY/tsubo to 97.9M JPY/tsubo — up (+7.6%).
  • From March 2025 to January 2026, Asking price for houses in 神奈川県足柄上郡開成町 went from 2,985M JPY to 2,880M JPY — down (−3.5%).

House — 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㎡)

開成町, latest
30.6tsubo
2026年1月
Whole period
−3.3%
vs March 2025
vs 神奈川県
+3.1%
baseline 29.7tsubo
20th–80th percentile
28.9〜37.4tsubo
the middle 60% · January 2026

Floor area

Unit: tsubo

Land area

Unit: tsubo

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

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.

house — Asking rent (total) and Asking rent per ㎡ over time

Asking rent (total) = the median of monthly rent + common charges. This is the payment per unit itself, so floor area feeds straight into it.

Asking rent per ㎡ = (monthly rent + common charges) ÷ area. The monthly rent per square metre, derived from properties currently on offer.

開成町, latest
11.0M JPY
2026年5月
Whole period
+19.6%
vs September 2025
vs 神奈川県
−12.0%
baseline 12.5M JPY
20th–80th percentile
9.0〜20.0M JPY
the middle 60% · May 2026

Asking rent (total)

Unit: M JPY

Asking rent per ㎡

Unit: JPY/㎡

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

Conditions

  • Source: rental listings currently on offer
  • Total rent = monthly rent + common charges. Rent per unit area = that divided by exclusive or gross floor area
  • Publication threshold: figures shown only for months with 10 or more records
  • Statistic: total rent is a median (P20–P80 is the 20th to 80th percentile). Rent per unit area is mean rent ÷ mean area

house — Offered area over time

Unit: ㎡

Offered area = the median exclusive or gross floor area among properties on offer. It is the variable between the total and the per-㎡ figure: at the same rate, more space means a higher total.

開成町, latest
88.0
2026年5月
Whole period
+10.6%
vs September 2025
vs 神奈川県
+14.1%
baseline 77.1㎡
20th–80th percentile
65.2〜147.7
the middle 60% · May 2026

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

Conditions

  • Source: rental listings currently on offer
  • Area = exclusive or gross floor area
  • Publication threshold: figures shown only for months with 10 or more records
  • Statistic: median (P20–P80 is the 20th to 80th percentile)

houses: listings over time

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House — Listings over time

Unit: (chart indexed to December 2022 = 100)

Listings = the count published to the market. Stock building up or drawing down is a leading indicator of supply and demand, and it is what makes price and yield movements readable. The chart is an index with the base month at 100, so areas of different size can be compared on the pace of the change rather than its size. The raw counts are in the cards and the table below.

開成町, latest
5
2026年8月
開成町, whole period
+400.0%
vs December 2022
神奈川県, same period
+1285.2%
345 → 4,779

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

  • From December 2022 to August 2026, listings for houses in 神奈川県足柄上郡開成町 went from 1 to 5 — up (+400.0%).
  • From December 2022 to August 2026, listings for houses across 神奈川県 moved +1285.2%, and 神奈川県足柄上郡開成町 ran 885.2 points slower.
  • In August 2026, 神奈川県足柄上郡開成町 had 5 listings for houses, against 9 a year earlier (−44.4%).

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

Main stations in 神奈川県足柄上郡開成町

Stations within 神奈川県足柄上郡開成町, ordered by record count. The station reports publish the same measures gathered by walking distance from the nearest station.

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

The same report for nearby areas

Areas around 神奈川県足柄上郡開成町 that publish the same aggregation. Distance is between municipality centroids.

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

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