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Transforming Office Spaces in Washington D.C.

Sankei Building, a prominent real estate company based in Tokyo, Japan, has embarked on an exciting new initiative in Washington D.C. on July 15, 2026. In partnership with local developer Duball, LLC, the company has successfully acquired an existing office building to convert it into approximately 150 rental residences. This is the second project of its kind in the city, following the announcement of their first conversion development in 2024.

Located just a few blocks from the White House, the building boasts a prime location in the heart of Washington D.C., surrounded by key administrative and commercial functions. The area offers excellent transit connectivity with access to multiple metro lines, making it an ideal location for urban dwellers seeking convenience and accessibility. The property is strategically set to provide great views and natural light due to its exposure towards Vermont Avenue and the White House.

The planned conversion project aims to develop luxurious rental residences targeted at high-quality living for urban residents. Among the standout features will be balconies for certain units that capitalize on the views towards the White House, along with shared spaces including a rooftop terrace, clubhouse, co-working spaces, and a pool deck.

As Washington D.C. faces ongoing changes in work patterns, the need to repurpose existing office spaces has become paramount. Despite the rise in office vacancy rates, there is a growing demand for housing in urban areas. Sankei Building plans to leverage the expertise gained from its first project and build upon the collaborative experiences with local partners to transform existing stock into apartments, ultimately creating new residential value within the city.

Property Details (Provisional)

1. Location: 1090 Vermont Avenue, NW Washington, D.C. 20005
- Strategically situated near two metro stations and serviced by four metro lines.

2. Site Area: 1,375.93 square meters (approx. 0.34 acres)

3. Total Floor Area: 14,435.03 square meters (approx. 155,000 square feet)

4. Building Completion Year: 1979

5. Structure & Size: Reinforced concrete construction, 12 floors (with 3 basement levels)

6. Total Units: Approximately 150 units, in addition to retail and parking spaces.

7. Unit Types: Studio (30 units), 1-bedroom (54 units), 2-bedroom (63 units), 3-bedroom (3 units)

8. Start of Construction: Scheduled for November 2027

9. Completion Timeline: Expected in early 2028

About Washington D.C.

Washington D.C. serves as the seat of the United States federal government, exerting significant political influence on an international scale. It hosts embassies from approximately 186 countries, as well as headquarters for international organizations like the International Monetary Fund (IMF) and the World Bank. The city is also home to 84 museums, including the renowned Smithsonian Institution, and is rich in historical architecture. With many neighborhoods designated as historic preservation areas, the city prioritizes the adaptive reuse of office spaces, supported by expanding governmental assistance to encourage residential development.

Company Profile: Duball, LLC

• - Headquarters: Rockville, Maryland
• - Founders: Marc Dubick (President) and Steven B. Alloy
• - Founded: 2004
• - Business Scope: Real estate development company focusing on conversion projects, with a specialization in developing rental and sale residences, commercial, and hotel spaces.
• - Track Record: Over 3,000,000 square feet of development in prime areas of the Washington-Baltimore metropolitan area, with total assets valued at $1.25 billion (approx. ¥180 billion). Duball Website

Through this transformative project, Sankei Building not only addresses the rising demand for urban housing but also exemplifies a forward-thinking approach to real estate development, showcasing how adaptive reuse can reshape the future landscape of Washington D.C.