HOUSTON — Groundbreaking has occurred for Washington Centre, an approximately 50,000-square-foot, multi-use development located in the Washington Avenue district of Houston. The three-story project will include ground-floor retail space, with offices on the second and third floors. Approximately 45 percent of the space at Washington Centre has been pre-leased, including a law firm that will be relocating from Houston’s central business district to a full floor of the building. The project is being developed by locally based Senterra Real Estate Group. Locally based Hermes Architects is providing design services, and Gamma Construction is serving as general contractor. Completion is scheduled for early fall 2009.