Overview of Diohaitsu Kongou (ディオハイツ金剛)
Diohaitsu Kongou (ディオハイツ金剛) is a 53-year-old condominium located at Tondabayashi Shi Teraike Dai 5 Choume 1-79 (富田林市寺池台5丁目1-79), Osaka, Japan. Built in 1973, it comprises 52 units in a Reinforced Concrete (RC) structure. It was constructed by Kozakai Kumi (小坂井組).
Pricing & Floor Plans
Based on 54 past listings, prices have ranged from 98〜750万円 (approx. $6,533–$50,000 USD at ¥150/$).
Unit sizes range from 55.9–68.2 sqm (602–734 sqft). Note: Japanese measurements refer to exclusive-use area (interior only, no common areas).
Available layouts: 1SLDK (1-bedroom w/ living-dining-kitchen + service room), 2SLDK (2-bedroom w/ living-dining-kitchen + service room), 1LDK (1-bedroom w/ living-dining-kitchen), 1R (Studio), 3LDK (3-bedroom w/ living-dining-kitchen).
Estimated price per sqm: ¥9.6万/sqm (approx. $640/sqm or $59/sqft).
Location & Neighborhood
The property is located at Tondabayashi Shi Teraike Dai 5 Choume 1-79 (富田林市寺池台5丁目1-79), Osaka, Japan. It is a 10-minute walk to the nearest station. This is considered good station access by Japanese standards.
Investment Perspective
Seismic standards: Built in 1973, this property predates Japan's 1981 New Seismic Design Standards (新耐震基準). Buildings constructed before June 1981 were built to older earthquake resistance codes. Buyers should consider seismic retrofit status.
Building depreciation: In Japan, buildings depreciate significantly over time. Wood-frame houses depreciate to near-zero value at around 22 years, while RC structures depreciate more slowly but still lose value. At 53 years old, much of the building's value has already depreciated — the price largely reflects land value and location premium.
Scale advantage: With 52 units, this is a relatively large condominium. Larger buildings typically benefit from lower per-unit maintenance and repair reserve costs.
Key cultural note: Unlike the US where properties typically appreciate over time, Japanese buildings depreciate while the underlying land tends to hold or gain value. This means buyers should evaluate the land-to-building value ratio carefully.
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