JR West Real Estate Development Acquires Office Building in Jimbocho

JR West Real Estate Development acquired the office building “CONVEX Jimbocho,” located in Kanda-Jimbocho 1-chome, Chiyoda Ward, Tokyo, on February 27, 2026. The company had also acquired “CIRCLES Jimbocho II” in the same Jimbocho area in December 2025, meaning it concentrated investment into two properties in Jimbocho within roughly three months.

The property is a 10-story SRC office building completed in March 1990, with a Gross Floor Area of approximately 705 tsubo (approx. 25,085 sq. ft.). Although the building is 36 years old, it has introduced setup floors and is operated as an office asset designed to accommodate increasingly diverse work styles. It is located about a one-minute walk from Jimbocho Station on the Toei Mita Line, Toei Shinjuku Line, and Tokyo Metro Hanzomon Line.

While JR West Real Estate Development is a developer backed by the JR West Group, whose core market is Kansai, it has been actively expanding its office leasing business in Tokyo since 2014. This acquisition brings its Tokyo office holdings to nine properties. In particular, since 2024, the company has accelerated acquisitions to a pace of two to three buildings per year. The concentrated investment in Jimbocho also appears to reflect a strategy aimed at improving cost efficiency through integrated management of nearby assets and strengthening area branding. In Tokyo’s central office market, demand has increasingly concentrated on large, high-grade buildings while polarization among existing buildings continues to widen, driving growing demand for value-add opportunities in older office stock.

Key Facts

• Property Name: CONVEX Jimbocho

• Buyer: JR West Real Estate Development Co., Ltd.

• Seller: Undisclosed

• Acquisition Price: Undisclosed

• Acquisition Date: February 27, 2026

• Location: 13 Kanda-Jimbocho 1-chome, Chiyoda-ku, Tokyo

• Nearest Station: Jimbocho Station (Toei Mita Line, Toei Shinjuku Line, and Tokyo Metro Hanzomon Line), approx. 1 minute on foot

• Completion: March 1990 (36 years old)

• Number of Floors: 10F / B0 (SRC structure)

• Use: Retail / Office

• Site Area: approximately 103 tsubo (approx. 3,665 sq. ft.)

• Gross Floor Area: approximately 705 tsubo (approx. 25,085 sq. ft.)

JR West Real Estate Development’s Office Acquisition History in Tokyo