A building's useful life is an important checkpoint when buying a home or investing in an apartment property. In this article,we explain the types of steel structures, useful life, depreciation, and the impact on loan screeningin a practical way.
What types of steel structures are there?
Steel structures are classified by the thickness of the steel into light-gauge steel structures (less than 6 mm) and heavy steel structures (6 mm or more).
Light-gauge steel structure
This type is widely used for custom-built homes and also includes prefabricated construction methods.
Heavy steel structure
It uses a rigid-frame construction method and has a highly durable structure.It is commonly used for buildings with three or more stories.
What does useful life mean?
The consumption period of an asset
There are two types: physical useful life, meaning the period during which the asset can actually be used, and statutory useful life, meaning the period defined for tax purposes.
Necessary for calculating depreciation
This is the mechanism for allocating a building's purchase cost over its statutory useful life and recording it as an expense.The longer the statutory useful life, the greater the room for tax planning.
Impact on mortgage screening
If the property has exceeded its useful life, it may not pass mortgage screening.When purchasing a used property, check the remaining useful life.
What is the actual useful life of a steel structure?
Physical lifespan
With proper maintenance, it can be used for 50〜60 years, and the frame itself is sometimes said to last 100 years.However, in coastal areas this period may be shorter because of rust caused by salty sea air.
Statutory useful life
The statutory useful life is 19〜27 years for light-gauge steel structures and 34 years for heavy steel structuresunder Japanese tax rules.
What happens to a building after it exceeds its useful life?
Once the statutory useful life has been exceeded, the asset value is considered to be zero for accounting purposes, but in physical terms the building can continue to be used depending on how well it is maintained.Regular consultation with exterior-painting and renovation professionals is important.
Summary
The useful life of a steel structure is an important indicator directly tied to investment decisions, mortgage screening, and tax planning. Understanding the difference between physical lifespan and statutory useful life, and maintaining the building properly, will help preserve its value.
Frequently Asked Questions (FAQ)
- Q. Which is better for investment: a light-gauge steel structure or a heavy steel structure?
- A. Heavy steel structures have a longer statutory useful life of 34 years and a longer depreciation period, which makes them more advantageous for investment. However, construction costs are higher.
- Q. Should you avoid buying a used property that has exceeded its useful life?
- A. If the property is still physically usable, there can be advantages to buying it. However, because loan screening becomes stricter, the decision should be based on a careful assessment of asset value and, in some cases, a cash purchase.
- Q. How much does it cost to repair a steel-structure building?
- A. As a rough guide, exterior painting costs about 10,000 to 20,000 yen per tsubo, while roof waterproofing work starts from several hundred thousand yen. Regular maintenance every 10 to 15 years is recommended.
