When considering purchasing or building a house or real estate, tsubo unit price is an indispensable indicator. By correctly understanding tsubo unit price, budget estimates become easier and price comparison accuracy improves. This article organizes calculation methods, regional market rates, and important notes.
What Is Tsubo Unit Price? Understanding the Formula
Tsubo unit price is an indicator showing construction cost per tsubo.
[Tsubo Unit Price = Building Base Price ÷ Total Floor Area (in tsubo)]
By reversing this formula, multiplying tsubo unit price by number of tsubo gives an approximate construction cost. However, since the definition of tsubo (total floor area vs. construction floor area) varies by company, caution is needed in comparisons.
Know the Market Rates for Tsubo Unit Price
House Maker Tsubo Unit Price Market Rates
- Low-cost housing: 250,000–500,000 yen/tsubo
- High-performance/high-grade housing: 700,000 yen/tsubo or more (some over 900,000 yen)
Local Builder Tsubo Unit Price Market Rates
- 500,000 yen/tsubo or more is common, tending to be lower than house makers
- Costs reduced due to no model houses and reduced advertising costs
National Average Tsubo Unit Price
The national average is approximately 500,000 yen/tsubo. However, regional differences are large, with many cases in Tokyo exceeding 1,000,000 yen, while the lowest prices in Akita Prefecture can be around 100,000 yen. This difference can amount to total cost differences of over 20 million yen.
Key Points When Checking Tsubo Unit Price
Check the Difference Between Total Floor Area and Construction Floor Area
The "construction floor area" including balconies, entrance porches, and attic storage differs significantly in tsubo unit price from the "total floor area" excluding these. Even with estimates from the same company, always confirm which calculation is used.
Fees and Exterior Construction Are Billed Separately
Costs calculable from tsubo unit price represent approximately 70% of the total house-building cost. The remaining 30% consists of exterior construction (20%) and miscellaneous expenses (10%). Estimates based on total amounts are essential for budget planning.
Don't Compare Contractors by Tsubo Unit Price Alone
The definition of base price differs by company, and the treatment of equipment costs varies. Tsubo unit price is a reference value, and judgment based on comprehensive cost analysis is important.
Frequently Asked Questions (FAQ)
- Q. Does a low tsubo unit price mean lower quality?
- A. Not necessarily. Regional builders set lower tsubo unit prices by reducing advertising costs. However, checking construction track records and reviews is essential.
- Q. What are the cautions when calculating total construction costs from tsubo unit price?
- A. Tsubo unit price × number of tsubo is just a guide for building base costs. Manage budgets using the "total amount" with exterior construction, taxes, loan fees, and ground improvement costs added.
- Q. How much difference is there in tsubo unit price between urban and rural areas?
- A. There are cases with nearly 10x differences in tsubo unit price between Tokyo and Akita. Even the same floor area house can create differences of tens of millions of yen depending on location.
- Q. How is tsubo unit price calculated for used properties?
- A. For used properties, it's calculated as sale price ÷ total floor area (in tsubo). Checking market rates considering deterioration, renovation status, and location is important.
