International Interface Co., Ltd.Broker Licence: Tokyo Governor (3) No. 96857
Selected images and diagrams are reproduced from the materials supplied for this listing.
Proud Tower Koiwa Front is a thirty-three-storey steel-framed reinforced concrete tower in Minami-Koiwa 6-chome, Edogawa Ward, completed in January 2026. It stands three minutes on foot from Koiwa Station, the last JR stop in Tokyo before the line crosses the Edogawa River into Chiba.
This twenty-seventh floor residence is a corner 3LDK of 73.06 sq m on the wall-centre measurement, facing north-east and south-east, with a balcony of 9.49 sq m. The floor plan shows western-style rooms of approximately 6.0, 4.6 and 5.0 mats, a living-dining room of approximately 12.1 mats, a kitchen of approximately 3.2 mats and a separate washroom, bathroom and WC.
The material lists auto-lock entry, a TV-monitor intercom, a delivery box, internal corridors and a refuse room on each floor available around the clock, together with a party room and guest room on the 31st floor, a kids' space on the 3rd floor and private booths on the 2nd floor. The building is managed under a fully outsourced contract with no caretaker on site. The residence is currently occupied by the owner, and handover is by consultation.
| Property Type | Residential Condominium |
|---|---|
| Address | 6-31 Minami-Koiwa, Edogawa-ku, Tokyo |
| Nearest Station | Koiwa Station (JR Chuo-Sobu Line) |
| Walking Distance | Approx. 3 min |
| Layout | 3LDK |
| Building Area | 73.06 sq m (wall-centre) |
| Balcony Area | 9.49 sq m |
| Floor | 27th Floor |
| Building Height | 33 Storeys |
| Building Structure | Steel-Framed Reinforced Concrete |
| Year Built | January 2026 |
| Tenure | Freehold Ownership |
| Management Fee | JPY 32,170 / month |
| Reserve Fund | JPY 15,070 / month |
| Management | Fully outsourced, no caretaker on site |
| Occupancy | Currently occupied by the owner |
| Handover | By consultation |
Areas are the figures from the listing material and remain subject to verification against the register.
The building stands in Minami-Koiwa 6-chome in Edogawa Ward, on the south side of Koiwa Station. The listing material records Koiwa Station on the JR Chuo-Sobu Line at approximately three minutes on foot.
The Chuo-Sobu Line runs west through Kinshicho, Ryogoku, Akihabara and Ochanomizu to Shinjuku, and east into Chiba. Journey times vary with the service and any changes, so none are stated here.
Koiwa is an established shopping district, with shopping streets around the station; the Edogawa River embankment lies to the east.
The map indicates the location of the building. Walking times above are as stated in the listing material.
Open in Google MapsIn the At Home – Sumitomo Mitsui Trust Research Institute Mansion Rent Index for Q1 2026, the family-type index for Tokyo’s 23 wards — units of 60 to under 100 sq m, the band this 73.06 sq m residence falls into — rose approximately 12.3% year on year.
The Ministry of Land, Infrastructure, Transport and Tourism’s Real Estate Price Index puts condominium prices in Tokyo at 234.8 for December 2025 against a 2010 average of 100 — a rise of approximately 9.6% on the same month a year earlier. No ward-level official land price series is published for this Edogawa-ku location, so it is not cited here.
These figures describe Tokyo’s 23 wards (rent index) and Tokyo as a whole (price index), not this individual property in Edogawa-ku; no ward-level land price series is available for this location. None of them guarantees future rent, value or performance.
Sources:
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