Kosa Town: property prices and land values

甲佐町

Data last updated: November 2026 (Land Price Publication 2026, Prefectural Survey 2026, transactions through Q2 2026)

Avg. residential land price
¥13K/m²
≈ $8/sq ft · 3 sites
#1283 of 1795 municipalities in Japan
Avg. commercial land price
¥22K/m²
≈ $13/sq ft · 1 sites
1-year change
−2.1%
Residential −1.8% · commercial −3.1%
5 years / 10 years
−11.0% / −18.1%
Same sites, chained
Pre-owned condos per m²
No data
Pre-owned houses (median)
¥3.0M
≈ $19K · 3 sales
Real Estate Zukan Index
22/100
#1466 in Japan
Total real estate value Estimate
¥49.4 billion
≈ $314.39M · land ¥29.5 billion + buildings ¥19.9 billion
#1205 of 1719 municipalities

Map official land price survey sites

Tap anywhere on the map to get an estimate for that spot. Map: GSI Tiles.

Price trend and forecast average chained from the same survey sites

¥0/m²¥10K/m²¥20K/m²¥30K/m²¥40K/m²¥50K/m²2006201020142018202220262036
ResidentialCommercialResidential forecast
Avg. residential land priceNow1 year3 years5 years10 years
Forecast Forecast
−1.6% a year
¥13K/m²¥13K/m²¥12K/m²¥12K/m²¥11K/m²

Forecasts are projections, not guarantees. 10-year range: ¥8,874/m²–¥13K/m²

Total real estate value of Kosa Town land and buildings · estimated from FY2025 assessed values for fixed-asset tax

Total value (market estimate)
¥49.4 billion
≈ $314.39M · 0.00% of Japan
Land (market estimate)
¥29.5 billion
residential land ¥25.5 billion
Buildings (assessed)
¥19.9 billion
8,848 buildings · 91.9 ha floor area
Assessed value (fixed-asset tax)
¥41.8 billion
land ¥21.9 billion · buildings ¥19.9 billion
ItemAssessed valueMarket estimateAreaPer m² (market estimate)
Residential land¥17.8 billion¥25.5 billion3.1 km²¥8,153/m²
Other land
farmland, forest, other
¥4.0 billion¥4.0 billion43.3 km²—
Buildings
wooden ¥11.8 billion · non-wooden ¥8.1 billion
¥19.9 billion¥19.9 billion91.9 ha floor—
Total¥41.8 billion¥49.4 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.

Kosa Town compared with larger areas

AreaAvg. residential≈ USD/sq ftKosa Town is1 year5 yearsCondos per m²Index
Kosa Town ¥13K/m²$8/sq ft −2.1%−11.0% —22
Kumamoto ¥43K/m²$25/sq ft 0.30x+1.7%+8.4% ¥252K/m²66
Japan ¥120K/m²$71/sq ft 0.11x+2.1%+8.0% ¥494K/m²—

Neighborhoods 14 · click a heading to sort

AreaAvg. residentialAvg. commercial1 year5 yearsCondos per m²Sales
Oaza Nitago
仁田子
¥20K/m² — −1.0% −7.5% — —
Oaza Shimoyokota
下横田
¥11K/m² — −1.8% −8.4% — 2
Oaza Nishisamano
西寒野
¥7,800/m² — −2.5% −13.3% — 1
Oaza Toyouchi
豊内
— — — — — 33
Oaza Funatsu
船津
— — — — — 6
Oaza Itoda
糸田
— — — — — 4
Oaza Sogawa
早川
— — — — — 1
Oaza Nishiharu
西原
— — — — — 1
Oaza Midorimachi
緑町
— — — — — 1
Oaza Iwashita
岩下
— ¥22K/m² −3.1% −14.6% — 1
Oaza Minamisanga
南三箇
— — — — — 1
Oaza Ariyasu
有安
— — — — — 1
Oaza Kamisogawa
上早川
— — — — — 1
Oaza Sakadani
坂谷
— — — — — 1

Official land price survey sites highest first · 4 sites

LocationUsePrice per m²≈ USD/sq ft1 yearStation
熊本県 上益城郡甲佐町大字岩下字東園106番3
Prefectural Survey 2026
Commercial¥22K/m²$13/sq ft −3.1%店舗兼住宅等が見られる近隣商業地域
熊本県 上益城郡甲佐町大字仁田子字立野168番29
Prefectural Survey 2026
Residential¥20K/m²$12/sq ft −1.0%一般住宅が建ち並ぶ既成の住宅地域
熊本県 上益城郡甲佐町大字下横田字日焼1141番1外
Prefectural Survey 2026
Residential¥11K/m²$6/sq ft −1.8%農家住宅、一般住宅の中に事業所等が混在する住宅地域
熊本県 上益城郡甲佐町大字西寒野字大ギ100番
Prefectural Survey 2026
Residential¥7,800/m²$5/sq ft −2.5%一般住宅のほか農家住宅が見られる住宅地域

Transaction prices MLIT Real Estate Information Library · last 2 years · 54 sales

Condos per m² (median)
—
Condo price (median)
—
Land & building (median)
¥3.0M
Land per m² (median)
¥7,700/m²

Sales in the loaded period: Farmland 93 · Forest 33 · Land 30 · Land & building 16

DistrictPeriodTypePriceAreaBuiltPer m²
Oaza FunatsuQ2 2026Farmland ¥25.0M3,700 m²——
Oaza MidorimachiQ2 2026Land & building ¥500K125 m²1952—
Oaza NishiharuQ2 2026Forest ¥10K700 m²——
Oaza SogawaQ2 2026Farmland ¥300K460 m²——
Oaza ShimoyokotaQ2 2026Farmland ¥1.3M1,800 m²——
Oaza ItodaQ1 2026Farmland ¥1.5M420 m²——
Oaza ItodaQ1 2026Farmland ¥2.0M570 m²——
Oaza ItodaQ1 2026Farmland ¥3.2M910 m²——
Oaza ItodaQ1 2026Land ¥3.4M980 m²—¥3,500/m²
Oaza NishisamanoQ1 2026Land & building ¥67.0M9,999 m²2020—
Oaza ToyouchiQ1 2026Farmland ¥930K520 m²——
Oaza ToyouchiQ1 2026Farmland ¥1.5M830 m²——
Oaza ToyouchiQ1 2026Farmland ¥2.5M1,300 m²——
Oaza ToyouchiQ1 2026Forest ¥430K950 m²——
Oaza ToyouchiQ1 2026Farmland ¥2.1M1,200 m²——
Oaza ToyouchiQ1 2026Farmland ¥6.4M2,000 m²——
Oaza ToyouchiQ1 2026Forest ¥210K470 m²——
Oaza ToyouchiQ1 2026Farmland ¥570K320 m²——
Oaza SakadaniQ1 2026Forest ¥200K2,800 m²——
Oaza KamisogawaQ1 2026Farmland ¥150K670 m²——

Real Estate Zukan Index breakdown percentile within Japan (100 = highest)

Market activity
44
1-year growth
10
5-year growth
10
10-year growth
18
Price level
29

Population, income, rent, yield, transport and disaster risk will be added once sourced data is available. Methodology

Nearby areas

FAQ

What is the average land price in Kosa Town?

The average price of residential land in Kosa Town is ¥12,767 per m² (about ¥42,205 per tsubo), based on 3 sites in the official land price surveys (2026).

Are land prices in Kosa Town going up?

Land prices in Kosa Town have fallen by -2.1% on average over the past year. Over five years the change is -11.0%.

What is the land price forecast for Kosa Town?

The Fudosan Zukan model projects residential land prices to change by -1.6% a year, reaching about ¥10,822 per m² in 10 years (range ¥8,874–¥12,770). Forecasts are projections, not guarantees.

What is the total value of real estate in Kosa Town?

About ¥49.4 billion: land ¥29.5 billion and buildings ¥19.9 billion (estimated from assessed values for fixed-asset tax, FY2025; assessed total ¥41.8 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.