Founded in 1992 by Greg Hackworth as Hackworth Architecture and Planning, the firm has provided design services for various clients for over twenty years. Originally located in downtown Seattle near Pike Place Market, we have worked with developers, builders, and owners to create significant single-family developments, multi-family buildings, and custom single-family homes.

In 2010 Philip McCullough, an employee since 1996, purchased the company. Since then, the firm has expanded the range of projects to include mixed-use and commercial, focusing on custom homes and multi-family projects. In August of 2013, the company became McCullough Architects. Now located in the Georgetown neighborhood, McCullough Architects looks ahead to continued service to our valued clients.