Overview of Rowaarumanshon Koga (ロワールマンション古賀)
Rowaarumanshon Koga (ロワールマンション古賀) is a 31-year-old condominium located at Koga Shi Tenjin 1 Choume 13-5 (古賀市天神1丁目13-5), Fukuoka, Japan. Built in 1995, it comprises 71 units in a Steel Reinforced Concrete (SRC) structure. It was constructed by Takagi Koumuten (高木工務店).
Pricing & Floor Plans
Based on 24 past listings, prices have ranged from 830〜2,698万円 (approx. $55,333–$179,867 USD at ¥150/$).
Unit sizes range from 61.0–84.0 sqm (657–904 sqft). Note: Japanese measurements refer to exclusive-use area (interior only, no common areas).
Available layouts: 4LDK (4-bedroom w/ living-dining-kitchen), 3SLDK (3-bedroom w/ living-dining-kitchen + service room), 3LDK (3-bedroom w/ living-dining-kitchen).
Estimated price per sqm: ¥29.6万/sqm (approx. $1,974/sqm or $183/sqft).
Location & Neighborhood
The property is located at Koga Shi Tenjin 1 Choume 13-5 (古賀市天神1丁目13-5), Fukuoka, 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 31 years old, much of the building's value has already depreciated — the price largely reflects land value and location premium.
Scale advantage: With 71 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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