FY2025 · FLAT 35 BORROWER SURVEY

Gunma average land and construction cost

Official averages for 218 Flat 35 borrowers in Gunma who financed both land acquisition and custom-home construction. These figures do not represent every homebuyer.

Average required funds
¥46.6M
Average land acquisition¥8.6M
Average construction¥38M
Survey records
218

Home and lot sizes in the survey

Median lot area
307.6 m²
Average floor area
113.2 m²

Lot area is a median, while floor area and costs are averages. Do not read these as the size and cost of one representative property. Construction cost is planned cost; land cost may be a planned purchase amount or acquisition price.

Compare municipalities using one 30-tsubo model

The table below is a planning model using 30 tsubo of land and 30 tsubo of floor area, ordered from the highest modeled total. Published transaction counts use each municipality's latest year, generally 2025. It is separate from the prefecture-level borrower results above.

MunicipalityTotal modelLand and building
Takasaki2025 · 345 transactions · 201 neighborhoods¥41.1MLand ¥4.5MBuilding ¥33.3M
Maebashi2025 · 267 transactions · 164 neighborhoods¥40.5MLand ¥3.9MBuilding ¥33.3M
Yoshioka2025 · 29 transactions · 8 neighborhoods¥39.2MLand ¥2.6MBuilding ¥33.3M
Ota-City2025 · 163 transactions · 122 neighborhoods¥39.2MLand ¥2.5MBuilding ¥33.3M
Showa-Village2025 · 1 transactions · 5 neighborhoods¥39MLand ¥2.4MBuilding ¥33.3M
Isesaki2025 · 199 transactions · 116 neighborhoods¥38.9MLand ¥2.2MBuilding ¥33.3M
Tatebayashi2025 · 81 transactions · 58 neighborhoods¥38.7MLand ¥2MBuilding ¥33.3M
Tamamura2025 · 11 transactions · 19 neighborhoods¥38.5MLand ¥1.9MBuilding ¥33.3M
Kusatsu2025 · 7 transactions · 2 neighborhoods¥38.5MLand ¥1.8MBuilding ¥33.3M
Shibukawa2025 · 62 transactions · 33 neighborhoods¥38.4MLand ¥1.8MBuilding ¥33.3M
Meiwa2025 · 9 transactions · 14 neighborhoods¥38.3MLand ¥1.6MBuilding ¥33.3M
Numata-City2025 · 44 transactions · 46 neighborhoods¥38.1MLand ¥1.5MBuilding ¥33.3M
Fujioka2025 · 52 transactions · 36 neighborhoods¥38MLand ¥1.4MBuilding ¥33.3M
Midori2025 · 39 transactions · 19 neighborhoods¥38MLand ¥1.4MBuilding ¥33.3M
Nakanojo2025 · 13 transactions · 16 neighborhoods¥38MLand ¥1.3MBuilding ¥33.3M
Kiryu2025 · 65 transactions · 45 neighborhoods¥37.9MLand ¥1.3MBuilding ¥33.3M
Chiyoda-Town2025 · 13 transactions · 10 neighborhoods¥37.8MLand ¥1.2MBuilding ¥33.3M
Katashina2025 · 1 transactions · 5 neighborhoods¥37.7MLand ¥1.1MBuilding ¥33.3M
Itakura2025 · 9 transactions · 11 neighborhoods¥37.7MLand ¥1.1MBuilding ¥33.3M
Annaka2025 · 41 transactions · 40 neighborhoods¥37.6MLand ¥1MBuilding ¥33.3M
Shinto2025 · 11 transactions · 4 neighborhoods¥37.5MLand ¥0.9MBuilding ¥33.3M
Kanra2025 · 11 transactions · 9 neighborhoods¥37.5MLand ¥0.8MBuilding ¥33.3M
Kawaba2025 · 2 transactions · 5 neighborhoods¥37.4MLand ¥0.8MBuilding ¥33.3M
Oizumi2025 · 32 transactions · 19 neighborhoods¥37.4MLand ¥0.7MBuilding ¥33.3M
Ora2025 · 20 transactions · 11 neighborhoods¥37.3MLand ¥0.7MBuilding ¥33.3M
Minakami2025 · 18 transactions · 28 neighborhoods¥37.3MLand ¥0.6MBuilding ¥33.3M
Tomioka-City2025 · 43 transactions · 38 neighborhoods¥37.2MLand ¥0.6MBuilding ¥33.3M
Kanna2022 · 2 transactions · 2 neighborhoods¥37.1MLand ¥0.4MBuilding ¥33.3M
Nammoku2025 · 2 transactions · 5 neighborhoods¥37MLand ¥0.4MBuilding ¥33.3M
Shimonita2025 · 7 transactions · 9 neighborhoods¥36.9MLand ¥0.3MBuilding ¥33.3M
Naganohara2025 · 18 transactions · 0 neighborhoods¥36.9MLand ¥0.3MBuilding ¥33.3M
Ueno2021 · 1 transactions · 1 neighborhoods¥36.8MLand ¥0.2MBuilding ¥33.3M
Tsumagoi2025 · 37 transactions · 9 neighborhoods¥36.8MLand ¥0.2MBuilding ¥33.3M
Higashiagatsuma2025 · 26 transactions · 17 neighborhoods¥36.6MLand ¥0MBuilding ¥33.3M
Takayama2024 · 1 transactions · 2 neighborhoods¥36.6MLand ¥0MBuilding ¥33.3M
MunicipalityTotal modelLand / build
Takasaki345 transactions · 201 neighborhoods¥41.1MLand¥4.5MBuild¥33.3MMaebashi267 transactions · 164 neighborhoods¥40.5MLand¥3.9MBuild¥33.3MYoshioka29 transactions · 8 neighborhoods¥39.2MLand¥2.6MBuild¥33.3MOta-City163 transactions · 122 neighborhoods¥39.2MLand¥2.5MBuild¥33.3MShowa-Village1 transactions · 5 neighborhoods¥39MLand¥2.4MBuild¥33.3MIsesaki199 transactions · 116 neighborhoods¥38.9MLand¥2.2MBuild¥33.3MTatebayashi81 transactions · 58 neighborhoods¥38.7MLand¥2MBuild¥33.3MTamamura11 transactions · 19 neighborhoods¥38.5MLand¥1.9MBuild¥33.3MKusatsu7 transactions · 2 neighborhoods¥38.5MLand¥1.8MBuild¥33.3MShibukawa62 transactions · 33 neighborhoods¥38.4MLand¥1.8MBuild¥33.3MMeiwa9 transactions · 14 neighborhoods¥38.3MLand¥1.6MBuild¥33.3MNumata-City44 transactions · 46 neighborhoods¥38.1MLand¥1.5MBuild¥33.3MFujioka52 transactions · 36 neighborhoods¥38MLand¥1.4MBuild¥33.3MMidori39 transactions · 19 neighborhoods¥38MLand¥1.4MBuild¥33.3MNakanojo13 transactions · 16 neighborhoods¥38MLand¥1.3MBuild¥33.3MKiryu65 transactions · 45 neighborhoods¥37.9MLand¥1.3MBuild¥33.3MChiyoda-Town13 transactions · 10 neighborhoods¥37.8MLand¥1.2MBuild¥33.3MKatashina1 transactions · 5 neighborhoods¥37.7MLand¥1.1MBuild¥33.3MItakura9 transactions · 11 neighborhoods¥37.7MLand¥1.1MBuild¥33.3MAnnaka41 transactions · 40 neighborhoods¥37.6MLand¥1MBuild¥33.3MShinto11 transactions · 4 neighborhoods¥37.5MLand¥0.9MBuild¥33.3MKanra11 transactions · 9 neighborhoods¥37.5MLand¥0.8MBuild¥33.3MKawaba2 transactions · 5 neighborhoods¥37.4MLand¥0.8MBuild¥33.3MOizumi32 transactions · 19 neighborhoods¥37.4MLand¥0.7MBuild¥33.3MOra20 transactions · 11 neighborhoods¥37.3MLand¥0.7MBuild¥33.3MMinakami18 transactions · 28 neighborhoods¥37.3MLand¥0.6MBuild¥33.3MTomioka-City43 transactions · 38 neighborhoods¥37.2MLand¥0.6MBuild¥33.3MKanna2 transactions · 2 neighborhoods¥37.1MLand¥0.4MBuild¥33.3MNammoku2 transactions · 5 neighborhoods¥37MLand¥0.4MBuild¥33.3MShimonita7 transactions · 9 neighborhoods¥36.9MLand¥0.3MBuild¥33.3MNaganohara18 transactions · 0 neighborhoods¥36.9MLand¥0.3MBuild¥33.3MUeno1 transactions · 1 neighborhoods¥36.8MLand¥0.2MBuild¥33.3MTsumagoi37 transactions · 9 neighborhoods¥36.8MLand¥0.2MBuild¥33.3MHigashiagatsuma26 transactions · 17 neighborhoods¥36.6MLand¥0MBuild¥33.3MTakayama1 transactions · 2 neighborhoods¥36.6MLand¥0MBuild¥33.3M

Land uses each municipality's latest published transaction median. Building cost uses the prefecture benchmark converted to a per-tsubo planning rate; ancillary costs are provisionally 10% of modeled construction cost.