開成町
Data last updated: November 2026 (Land Price Publication 2026, Prefectural Survey 2026, transactions through Q2 2026)
Tap anywhere on the map to get an estimate for that spot. Map: GSI Tiles.
| Avg. residential land price | Now | 1 year | 3 years | 5 years | 10 years |
|---|---|---|---|---|---|
| Forecast Forecast +0.1% a year | ¥101K/m² | ¥101K/m² | ¥101K/m² | ¥101K/m² | ¥102K/m² |
Forecasts are projections, not guarantees. 10-year range: ¥84K/m²–¥120K/m²
| Item | Assessed value | Market estimate | Area | Per m² (market estimate) |
|---|---|---|---|---|
| Residential land | ¥104.1 billion | ¥148.7 billion | 2.2 km² | ¥69K/m² |
| Other land farmland, forest, other | ¥17.0 billion | ¥17.0 billion | 2.1 km² | — |
| Buildings wooden ¥21.6 billion · non-wooden ¥27.8 billion | ¥49.3 billion | ¥49.3 billion | 1.2 km² floor | — |
| Total | ¥170.4 billion | ¥215.0 billion |
Market estimate: residential land is assessed at about 70% of official land prices, so its assessed value is divided by 0.7; other land and buildings are shown at assessed value. Tax-exempt land and buildings (roads, parks, etc.) are not included. Source: Ministry of Internal Affairs and Communications, survey of fixed-asset values (FY2025, by municipality), compiled by Fudosan Zukan.
| Area | Avg. residential | Avg. commercial | 1 year | 5 years | Condos per m² | Sales |
|---|---|---|---|---|---|---|
| Yoshidajima 吉田島 |
¥127K/m² | ¥185K/m² | +1.1% | +0.8% | ¥335K/m² | 26 |
| Minami みなみ |
¥123K/m² | — | +0.8% | +2.5% | — | 7 |
| Nobusawa 延沢 |
¥86K/m² | — | +0.1% | −1.1% | — | 7 |
| 岡野 岡野 |
¥29K/m² | — | ±0.0% | −2.4% | — | — |
| Nakanomyo 中之名 |
— | — | — | — | — | 11 |
| Entsuuji 円通寺 |
— | — | — | — | — | 2 |
| Kanaishima 金井島 |
— | — | — | — | — | 2 |
| Location | Use | Price per m² | ≈ USD/sq ft | 1 year | Station |
|---|---|---|---|---|---|
| 神奈川県 足柄上郡開成町吉田島４３５１番９ Prefectural Survey 2026 |
Commercial | ¥185K/m² | $109/sq ft | +2.2% | 店舗、事務所兼共同住宅等が存する駅前商業地域 |
| 神奈川県 足柄上郡開成町吉田島字下島屋敷下３８０６番４ Land Price Publication 2026 |
Residential | ¥146K/m² | $86/sq ft | +1.4% | 開成 350 m |
| 神奈川県 足柄上郡開成町吉田島４３２６番５ Prefectural Survey 2026 |
Residential | ¥146K/m² | $86/sq ft | +0.7% | 中規模一般住宅が多い区画整然とした住宅地域 |
| 神奈川県 足柄上郡開成町みなみ３丁目３番１０ Land Price Publication 2026 |
Residential | ¥123K/m² | $73/sq ft | +0.8% | 開成 1.0 km |
| 神奈川県 足柄上郡開成町延沢字中川原７８３番２ Land Price Publication 2026 |
Residential | ¥92K/m² | $54/sq ft | ±0.0% | 開成 1.7 km |
| 神奈川県 足柄上郡開成町吉田島字東河原２６３２番４ Land Price Publication 2026 |
Residential | ¥88K/m² | $52/sq ft | ±0.0% | 新松田 1.4 km |
| 神奈川県 足柄上郡開成町延沢字西河原１４０６番３ Prefectural Survey 2026 |
Residential | ¥80K/m² | $47/sq ft | +0.3% | 一般住宅の中にアパートが見られる住宅地域 |
| 神奈川県 足柄上郡開成町岡野字三ツ家８１番 Prefectural Survey 2026 |
Residential | ¥29K/m² | $17/sq ft | ±0.0% | 一般住宅、農家住宅、農地が混在する住宅地域 |
Sales in the loaded period: Land & building 76 · Land 53 · Pre-owned condo 34 · Farmland 4
| District | Period | Type | Price | Area | Built | Per m² |
|---|---|---|---|---|---|---|
| Minami | Q2 2026 | Land & building (contract) | ¥66.0M | 195 m² | 2023 | — |
| Yoshidajima | Q2 2026 | Pre-owned condo (contract) | ¥31.0M | 75 m² | 2017 | ¥413K/m² |
| Yoshidajima | Q2 2026 | Pre-owned condo (contract) | ¥27.0M | 75 m² | 2012 | ¥360K/m² |
| Yoshidajima | Q2 2026 | Pre-owned condo (contract) | ¥50.0M | 100 m² | 2012 | ¥500K/m² |
| Nobusawa | Q2 2026 | Land & building (contract) | ¥29.0M | 150 m² | 2015 | — |
| Yoshidajima | Q2 2026 | Land | ¥14.0M | 155 m² | — | ¥90K/m² |
| Yoshidajima | Q2 2026 | Pre-owned condo | ¥27.0M | 70 m² | 2012 | ¥386K/m² |
| Minami | Q2 2026 | Land & building | ¥67.0M | 175 m² | 2026 | — |
| Minami | Q2 2026 | Land & building | ¥34.0M | 160 m² | 2015 | — |
| Nobusawa | Q2 2026 | Land | ¥1.1M | 35 m² | — | ¥32K/m² |
| Nobusawa | Q2 2026 | Land & building | ¥30.0M | 150 m² | 2015 | — |
| Nakanomyo | Q2 2026 | Land | ¥12.0M | 550 m² | — | ¥21K/m² |
| Yoshidajima | Q1 2026 | Land & building (contract) | ¥35.0M | 145 m² | 2026 | — |
| Yoshidajima | Q1 2026 | Pre-owned condo (contract) | ¥20.0M | 65 m² | 1995 | ¥308K/m² |
| Yoshidajima | Q1 2026 | Land & building (contract) | ¥40.0M | 160 m² | — | — |
| Yoshidajima | Q1 2026 | Land & building (contract) | ¥20.0M | 140 m² | 2010 | — |
| Yoshidajima | Q1 2026 | Land & building (contract) | ¥32.0M | 150 m² | 1994 | — |
| Yoshidajima | Q1 2026 | Pre-owned condo (contract) | ¥29.0M | 85 m² | 2003 | ¥341K/m² |
| Yoshidajima | Q1 2026 | Land & building (contract) | ¥49.0M | 150 m² | 2026 | — |
| Yoshidajima | Q1 2026 | Pre-owned condo (contract) | ¥32.0M | 105 m² | 2003 | ¥305K/m² |
Population, income, rent, yield, transport and disaster risk will be added once sourced data is available. Methodology
The average price of residential land in Kaisei Town is ¥100,543 per m² (about ¥332,374 per tsubo), based on 7 sites in the official land price surveys (2026).
Land prices in Kaisei Town have risen by +0.7% on average over the past year. Over five years the change is +0.6%.
The median price of pre-owned condo transactions in the last two years is ¥334,874 per m², with a median price of ¥27.0 million (12 transactions, MLIT Real Estate Information Library).
The Fudosan Zukan model projects residential land prices to change by +0.1% a year, reaching about ¥101,934 per m² in 10 years (range ¥83,586–¥120,282). Forecasts are projections, not guarantees.
About ¥215.0 billion: land ¥165.7 billion and buildings ¥49.3 billion (estimated from assessed values for fixed-asset tax, FY2025; assessed total ¥170.4 billion).
Land prices are official survey prices (Land Price Publication as of January 1, Prefectural Land Price Survey as of July 1); transactions are MLIT transaction and contract prices. Averages, changes, forecasts and the index are calculated by Fudosan Zukan. All prices in Japanese yen; dollar figures (≈) at ¥157.25 = $1 are for reference. Estimated prices and forecasts on this site are for reference only and do not guarantee actual sale prices or appraisal values. The estimate is not a licensed real estate appraisal; it is an "AI-estimated price" calculated from public land price and transaction statistics. Forecasts are projections, not guarantees.