Overview of Kyassurumanshon Ryougoku (キャッスルマンション両国)
Kyassurumanshon Ryougoku (キャッスルマンション両国) is a 45-year-old condominium located at Sumidaku Midori 1 Choume 21-13 (墨田区緑1丁目21-13), Tokyo, Japan. Built in 1981, it comprises 31 units in a Steel Reinforced Concrete (SRC) structure. It was constructed by Kirikoshi Kensetsu (桐越建設).
Pricing & Floor Plans
Based on 46 past listings, prices have ranged from 1,099〜3,780万円 (approx. $73,267–$252,000 USD at ¥150/$).
Unit sizes range from 33.4–53.7 sqm (360–578 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), 1SDK (1-bedroom w/ dining-kitchen + service room), 2SLDK (2-bedroom w/ living-dining-kitchen + service room), 1LDK (1-bedroom w/ living-dining-kitchen), 2DK (2-bedroom w/ dining-kitchen).
Estimated price per sqm: ¥66.7万/sqm (approx. $4,446/sqm or $413/sqft).
Location & Neighborhood
The property is located at Sumidaku Midori 1 Choume 21-13 (墨田区緑1丁目21-13), Tokyo, Japan. It is a 4-minute walk to the nearest station. This is considered excellent station access in Japan, where most daily errands are done on foot or by train.
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 45 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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