Overview of Kyassurumanshon Kumagaya (キャッスルマンション熊谷)
Kyassurumanshon Kumagaya (キャッスルマンション熊谷) is a 35-year-old condominium located at Kumagaya Shi Motoishi 2 Choume 18 (熊谷市本石2丁目18), Saitama, Japan. Built in 1991, it comprises 42 units in a Steel Reinforced Concrete (SRC) structure. It was constructed by Toyoda Koumuten (豊田工務店).
Pricing & Floor Plans
Based on 51 past listings, prices have ranged from 170〜1,380万円 (approx. $11,333–$92,000 USD at ¥150/$).
Unit sizes range from 18.5–47.8 sqm (199–515 sqft). Note: Japanese measurements refer to exclusive-use area (interior only, no common areas).
Available layouts: 1LDK (1-bedroom w/ living-dining-kitchen), 1K (1-bedroom w/ kitchen), 1R (Studio), 1DK (1-bedroom w/ dining-kitchen), 2LDK (2-bedroom w/ living-dining-kitchen).
Estimated price per sqm: ¥14.8万/sqm (approx. $987/sqm or $92/sqft).
Location & Neighborhood
The property is located at Kumagaya Shi Motoishi 2 Choume 18 (熊谷市本石2丁目18), Saitama, Japan. It is a 6-minute walk to the nearest station. This is considered good station access by Japanese standards.
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 35 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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