2025 FLAT 35 DATA

Ibaraki house construction costs

A prefecture-level benchmark for land-attached custom homes. It is not an estimate specific to a city or neighborhood.

Average construction costJPY 36.92M
Average floor area110.8 m²
Calculated cost / m²JPY 332,750 / m²JPY 332.75K / m²
Survey sample292

Estimated cost by floor area

Floor areaEstimated building costCalculation basis
80.0 m²24.2 tsuboJPY 26.62MJPY 332,750 / m² × 80.0 m²JPY 332.75K / m² × 80.0 m²JPY 332,750 / m² × 80.0 m²JPY 332.75K / m² × 80.0 m²
100.0 m²30.3 tsuboJPY 33.28MJPY 332,750 / m² × 100.0 m²JPY 332.75K / m² × 100.0 m²JPY 332,750 / m² × 100.0 m²JPY 332.75K / m² × 100.0 m²
120.0 m²36.3 tsuboJPY 39.93MJPY 332,750 / m² × 120.0 m²JPY 332.75K / m² × 120.0 m²JPY 332,750 / m² × 120.0 m²JPY 332.75K / m² × 120.0 m²
140.0 m²42.4 tsuboJPY 46.59MJPY 332,750 / m² × 140.0 m²JPY 332.75K / m² × 140.0 m²JPY 332,750 / m² × 140.0 m²JPY 332.75K / m² × 140.0 m²

Simple multiplication using the survey-derived unit cost and unrounded areas. Displayed m² areas and unit prices are rounded; English models use 80, 100, 120 and 140 m². Site work, design, permits and ground improvement may be additional.

How this differs from neighborhood land prices

Construction cost

Shown at Ibaraki level because that is the finest reliable geography in this source.

Land price

Calculated from neighborhood-level MLIT transactions and varies substantially by location.

Source and limitations

This survey covers Flat 35 borrowers and is not a census of every custom home.

Japan Housing Finance Agency Flat 35 Survey