Overview of Dioferutei Sayama Nishiyama Dai (ディオフェルティ狭山西山台)
Dioferutei Sayama Nishiyama Dai (ディオフェルティ狭山西山台) is a 32-year-old condominium located at Oosakasayama Shi Nishiyama Dai 6 Choume 14-10 (大阪狭山市西山台6丁目14-10), Osaka, Japan. Built in 1994, it comprises 108 units in a Reinforced Concrete (RC) structure. It was constructed by Hase Kou Kooporeeshon (長谷工コーポレーション).
Pricing & Floor Plans
Based on 112 past listings, prices have ranged from 780〜1,798万円 (approx. $52,000–$119,867 USD at ¥150/$).
Unit sizes range from 61.6–81.2 sqm (663–874 sqft). Note: Japanese measurements refer to exclusive-use area (interior only, no common areas).
Available layouts: 2SSLDK (2-bedroom w/ living-dining-kitchen + service room), 2SLDK (2-bedroom w/ living-dining-kitchen + service room), 3LDK (3-bedroom w/ living-dining-kitchen), 4LDK (4-bedroom w/ living-dining-kitchen), 2LDK (2-bedroom w/ living-dining-kitchen).
Estimated price per sqm: ¥18.7万/sqm (approx. $1,247/sqm or $116/sqft).
Location & Neighborhood
The property is located at Oosakasayama Shi Nishiyama Dai 6 Choume 14-10 (大阪狭山市西山台6丁目14-10), Osaka, Japan. It is a 29-minute walk to the nearest station. In Japan, station proximity significantly affects property values and daily convenience.
Investment Perspective
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 32 years old, much of the building's value has already depreciated — the price largely reflects land value and location premium.
Scale advantage: With 108 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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