Overview of Kosumo Kawagoe (コスモ川越)
Kosumo Kawagoe (コスモ川越) is a 39-year-old condominium located at Kawagoeshi Kishichou 1 Choume 9-5 (川越市岸町1丁目9-5), Saitama, Japan. Built in 1987, it comprises 35 units in a Reinforced Concrete (RC) structure. It was constructed by Hasegawakoumuten (長谷川工務店).
Pricing & Floor Plans
Based on 20 past listings, prices have ranged from 700〜2,480万円 (approx. $46,667–$165,333 USD at ¥150/$).
Unit sizes range from 58.1–79.5 sqm (625–856 sqft). Note: Japanese measurements refer to exclusive-use area (interior only, no common areas).
Available layouts: 2LDK (2-bedroom w/ living-dining-kitchen), 2SLDK (2-bedroom w/ living-dining-kitchen + service room), 3LDK (3-bedroom w/ living-dining-kitchen).
Estimated price per sqm: ¥26.2万/sqm (approx. $1,745/sqm or $162/sqft).
Location & Neighborhood
The property is located at Kawagoeshi Kishichou 1 Choume 9-5 (川越市岸町1丁目9-5), Saitama, Japan. It is a 15-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 39 years old, much of the building's value has already depreciated — the price largely reflects land value and location premium.
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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