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Great Seal LLC


About Us

2x Best of Houzz winner
Locally owned
24 years in business
Arlington County's Top Rated Architecture Firm - 2x Best of Houzz!
ABOUT GREAT SEAL Great Seal, LLC (Great Seal) is an award-winning architectural design firm founded by regionally recognized and nationally decorated designer, Lyndl T. Joseph. Great Seal is a Woman-Owned Small Business (WOSB) that provides customized solutions and architectural expertise uniquely tailored to client needs. Great Seal offers state-of-the-art design tools, industry-best technical, management, and quality control practices, and services of some of the best people in the business to capture the unique requirements and client needs of complex projects, design innovative, uniquely tailored solutions, and achieve our clients objectives. Headquartered in Alexandria, Virginia, and located minutes away from our nations capital, Great Seal has successfully managed the design solutions for complex projects since 1997.

Services Provided

Architectural Design, Architectural Drawings, Building Design, Custom Home, Historic Building Conservation, Home Additions, Home Extensions, Home Restoration, New Home Construction, Project Management, Custom Homes

Areas Served

Alexandria, Arlington, DC (Washington), Fairfax, Fort Hunt, Mount Vernon, Tysons Corner


AIA 2007 Award of Merit

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Contact Great Seal LLC
Great Seal LLC
Average rating: 5 out of 5 stars
Alexandria, VA 22320
Typical Job Cost $50,000 - 5,000,000
License Number 015071