International Interface Co., Ltd.Broker Licence: Tokyo Governor (3) No. 96857
Selected images and diagrams are reproduced from the materials supplied for this listing.
CS Tower Annex stands at 5-20-6 Asakusabashi in Taito-ku. It was completed in August 1991 in steel-reinforced and reinforced concrete with 55 residences, and is managed by Residence Building Management under a fully outsourced contract with a weekday caretaker. The listing material describes the building as 18 storeys, noting that the Annex building has 14 storeys above ground. This residence is a 2DK of 50.45 sq m on the tenth floor, facing south-west. The floor plan shows a dining kitchen, a Western-style room, a Japanese-style room with a cupboard, a unit bathroom, a washroom and a separate toilet. The listing material gives the balcony area as unknown.
The residence is currently let on an ordinary lease from 1 July 2025 to 30 June 2027 at a monthly rent of JPY 137,000 plus a common-service charge of JPY 10,000, with a deposit of JPY 274,000 and no rent guarantee company. On the asking price of JPY 60,800,000 that is a gross yield of 2.9% before costs. Large-scale repair works were carried out in 2024. Because the residence is occupied, the interior cannot be viewed and no interior photographs were supplied.
| Property Type | Residential Condominium |
|---|---|
| Address | 5-20-6 Asakusabashi, Taito-ku, Tokyo |
| Nearest Station | Asakusabashi Station (JR Chuo-Sobu Line) |
| Walking Distance | Approx. 8 min |
| Access | Asakusabashi Station (Toei Asakusa Line) approx. 9 min; Akihabara Station (Hibiya Line) approx. 10 min; Shin-Okachimachi Station (Toei Oedo Line) approx. 10 min; Akihabara Station (JR Yamanote, Keihin-Tohoku and Chuo-Sobu lines and others) approx. 11 min on foot |
| Layout | 2DK |
| Building Area | 50.45 sq m |
| Floor | 10th Floor |
| Building Height | 18 Storeys (the Annex building has 14 storeys above ground, per the listing material) |
| Building Structure | SRC / RC |
| Year Built | August 1991 |
| Number of Units | 55 Units |
| Tenure | Freehold Ownership |
| Management Fee | JPY 15,300 / month |
| Reserve Fund | JPY 9,200 / month |
| Management | Fully outsourced, caretaker on weekday day shifts |
| Pets | Not permitted |
| Occupancy | Tenanted (ordinary lease) |
| Handover | Immediate |
Areas are the figures from the listing material and remain subject to verification against the register.
The building stands at 5-20-6 Asakusabashi in Taito-ku, between Asakusabashi and Akihabara. Asakusabashi Station is approximately 8 minutes on foot on the JR Chuo-Sobu Line and 9 minutes on the Toei Asakusa Line; Akihabara Station is approximately 10 minutes on the Hibiya Line and 11 minutes for the JR Yamanote, Keihin-Tohoku and Chuo-Sobu lines; and Shin-Okachimachi Station on the Toei Oedo Line is approximately 10 minutes.
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 compact-type index for Tokyo’s 23 wards — units of 30 to under 60 sq m, the band this 50.45 sq m residence falls into — rose approximately 5.6% year on year.
In the Reiwa 8 (2026) Official Land Price Survey, residential land in Taito-ku rose 14.2% on the previous 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.
These figures describe the named ward and Tokyo as a whole, not this individual property. The rent index covers quality-adjusted contracted rents for condominium-type buildings generally, not this address; the land figure is an average across all official reference points in the ward, not an appraisal of this address; the price index is a nationwide statistical series for Tokyo. None of them guarantees future rent, value or performance.
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