Cosmos Initia Acquires Rental Apartment Building in Kameido

Cosmos Initia has acquired “M’s East Kameido II,” a rental apartment building in Kameido 2-chome, Koto Ward, Tokyo. The seller was M’s East, a local developer based in Sumida Ward, and Cosmos Initia acquired the property from the seller, which had owned it since completion.

The property is located a six-minute walk from Kameido Station on the JR Sobu Line. Completed in February 2019, the 13-story reinforced concrete building has a Gross Floor Area of approximately 299 tsubo (approx. 10,639 sq. ft.) and 36 residential units. The building is geared primarily toward single tenants, with a unit mix centered on 1K layouts, and offers amenities such as an auto-lock entry system, parcel lockers, and free Wi-Fi.

Average asking rents for newer rental apartment buildings (completed in 2015 or later, with unit sizes of 30 sq. m. or less) within a 10-minute walk of Kameido Station were around JPY 13,000 per tsubo in 2019, but have continued to trend upward, reaching around JPY 16,000 per tsubo as of February 2026. This represents roughly a 20% increase compared with rents at the time this property was completed, underscoring steady demand for single-tenant rental apartments in the area (researched and compiled by the editorial team based on “estie Residential Research”).

Key Facts

• Property Name: M’s East Kameido II

• Buyer: Cosmos Initia Co., Ltd.

• Seller: M’s East Co., Ltd.

• Location: 2-45-7 Kameido, Koto-ku, Tokyo

• Nearest Station: Kameido Station (JR Sobu Line), 6-minute walk

• Completion: February 2019

• Number of Floors: 13F / B0 (Structure: RC)

• Gross Floor Area: Approx. 299 tsubo (approx. 10,639 sq. ft.)

• Total Units: 36