LAND + HOUSE BUDGET

Cost to build a home in Toguchimachi

The land estimate uses published transactions with lot sizes comparable to your selection. Prefecture-level building data is shown separately before combining the two.

100 m² lot + 100 m² floor-area model
Estimated total
JPY 39.11M
LandJPY 1.51M
BuildingJPY 34.18M
Ancillary costsJPY 3.42M

Adjust land and building assumptions

Kumamoto public survey used for the initial building-cost setting
FY2025, 173 land-attached custom homes; derived from an average construction cost of JPY 36.27M and average floor area of 106.1 m².

The initial land and floor areas are each 100 m², adjustable in 1 m² steps. This is a comparison model, not the Japanese average or a guarantee of buildability. Displayed values are rounded; area calculations use unrounded conversions.

LAND PRICE EVIDENCE
Selected land area
100.0 m²
Comparable median
JPY 15,125 / m²JPY 15.125K / m²
Published samples
9 records
Estimate confidence
Medium

9 published transactions from Municipality, approximately 70.0 m²–130.0 m². Zoning: mixed usable records. Confidence: Medium.

Overall neighborhood reference: JPY 3,328 / m². It remains visible for comparison and is not automatically treated as the selected-lot estimate.Overall neighborhood reference: JPY 3.328K / m². It remains visible for comparison and is not automatically treated as the selected-lot estimate.

Land price
JPY 1.51M
Building cost
JPY 34.18M
Ancillary allowance
JPY 3.42M
Total estimate
JPY 39.11M
Planning model: 100.0 m² building
The simple floor-area-ratio ceiling for a 100.0 m² lot is about 0.0 m². The selected model exceeds this simple ceiling; the total is a comparison scenario, not a buildable-plan estimate.

Ancillary costs are provisionally set at 10% of construction cost. Public transaction records are retained; selection only changes which records are used for this estimate.

Source: Japan Housing Finance Agency Flat 35 Survey

Data used in the estimate

LAND / NEIGHBORHOOD DATA

Toguchimachi

JPY 3,328 / m²JPY 3.328K / m²

Overall reference median for the neighborhood. The interactive estimate separately selects transactions close to the chosen lot size.

View land-price analysis →
BUILDING / PREFECTURE DATA

Kumamoto

JPY 341,825 / m²JPY 341.825K / m²

FY2025 · 173 survey records.

View construction-cost analysis →

Important limitations

This is an area-level planning estimate, not a quote or confirmation that the selected building can be built on a specific lot.