2025 FLAT 35 DATA
Nagano 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 cost¥38.3M
Average floor area110.1 m²
Calculated cost / tsubo¥1.2M / tsubo
Survey sample164
Estimated cost by floor area
| Floor area | Estimated building cost | Calculation basis |
|---|---|---|
| 25 tsubo82.6㎡ | ¥28.8M¥1.2M / tsubo × 25 tsubo | ¥1.2M / tsubo × 25 tsubo |
| 30 tsubo99.2㎡ | ¥34.5M¥1.2M / tsubo × 30 tsubo | ¥1.2M / tsubo × 30 tsubo |
| 35 tsubo115.7㎡ | ¥40.3M¥1.2M / tsubo × 35 tsubo | ¥1.2M / tsubo × 35 tsubo |
| 40 tsubo132.2㎡ | ¥46M¥1.2M / tsubo × 40 tsubo | ¥1.2M / tsubo × 40 tsubo |
Simple multiplication using the survey-derived unit cost. Site work, design, permits and ground improvement may be additional.
How this differs from neighborhood land prices
Construction cost
Shown at Nagano 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.