Aoyama Zaisan Networks Acquires Hillcrest Ochanomizu Building in Tokyo

In April 2025, Aoyama Zaisan Networks Co., Ltd. acquired the “Hillcrest Ochanomizu Building,” located in Kanda-Surugadai, Chiyoda-ku, Tokyo, from Miura Shoji K.K.

The property boasts excellent transportation accessibility, situated just a one-minute walk from JR Chuo and Sobu Line’s Ochanomizu Station and four minutes on foot from Shin-Ochanomizu Station on the Tokyo Metro Chiyoda Line. Completed in 2008, the mixed-use building consists of nine stories above ground and one basement level, with a gross floor area of approximately 1,025 tsubo (approx. 33,880 sq. ft.). The asset holds strong potential for enhanced profitability through partial renovations or other value-add initiatives.

Aoyama Zaisan Networks announced in November 2024 a strategic business alliance and corporate integration with the Chester Group, a leading professional firm with over 3,000 inheritance tax filings. Specifically, Aoyama acquired 100% ownership of four Chester Group companies and entered into partnership agreements with professional firms such as Tax Corporation Chester. As of January 2025, equity acquisition and a simplified share exchange were completed, expanding the group to over 800 personnel. By integrating highly specialized professionals in inheritance and business succession along with a nationwide network, Aoyama has established a one-stop wealth consulting platform capable of delivering advanced asset succession solutions directly to clients.　　

Key Facts

• Property Name: Hillcrest Ochanomizu Building

• Buyer: Aoyama Zaisan Networks Co., Ltd.　　

• Seller: Miura Shoji K.K.

• Transaction Price: Undisclosed

• Location: 2-1-4 Kanda-Surugadai, Chiyoda-ku, Tokyo

• Nearest Stations:

  • JR Chuo & Sobu Line – Ochanomizu Station (1-minute walk)

  • Tokyo Metro Chiyoda Line – Shin-Ochanomizu Station (4-minute walk)

• Completion: March 2008

• Number of Floors: 9F / B1

• Gross Floor Area: approx. 1,025 tsubo (approx. 33,880 sq. ft.)