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Aggregate is a full-service architecture and design firm based in Washington, D.C. Aggregate has more than 30 years’ combined experience in delivering exceptional results. Specializing in modernization and restoration of the region’s abundance of historic homes, Aggregate uses a collaborative approach to pull together architecture, interior design, construction management, and engineering knowledge to shape the perfect-fit transformation for our residential clients. We cultivate partnerships with those who commission, construct, and inhabit the spaces we design, keeping in mind that our work is a collective effort. We believe architecture is capable of transforming experiences and defining feelings. We are driven to create both transformational spaces, but to also steward the creation process responsibly, adding value to our communities, our city, and our clients properties.