Mount Vernon View
  Lakefront Home
  Corner Courtyard Residence
  Hawk's Nest
  Modern Retreat in a Rural Hamlet
  Brookmont Home
  A House with a View
  A Stately Home
  Tulip Hills Residence
  House on the Pond
  High Gate
  Ships Point
  Westmoreland Hills Renovation
  Annapolis Historic Home
  Waterfront Farm Main House
  Bright and Airy Kitchen & Family Room
  Royal Oak Renovation
  Mid-Century Makeover
  Addition to Historic Home
  Grand Dame of Chevy Chase
  Waterfront Kitchen
  Colorful Four Square
  Riverside Retreat
  Greenwich Village Loft
  Penthouse with a Feature Stair
  Penthouse with a View
  Bethesda Penthouse
  The Maisonette, Fifth Avenue, New York City
  Highland Farm
  Waterfront Farm
  Pleasant Prospect Farm
  Hillside Homes
  Noyes Children's Library
  Project Design Models
5714 Bradley Blvd
Bethesda MD 20814

WIEDEMANN ARCHITECTS is a full-service architectural firm with over 30 years of award -winning design experience ranging  from new homes, estates and residential additions to large institutional and commercial projects.

The firm’s portfolio encompasses new work, both traditional and modern in design, and includes seamless residential additions, sympathetic to older structures; "additions so seamless they look as if they have always been there".

In addition to all normal architectural services, the firm offers services in feasibility studies, programming, site planning, master planning, urban design, and interiors. Wiedemann Architects LLC brings a breadth of experience and a standard of excellence in design as demonstrated by the firm's numerous architectural awards.

Gregory Wiedemann, FAIA, Principal of Wiedemann Architects LLC, received a Bachelor of Arts, magna cum laude, in Mathematics and Urban Planning from Tufts University, a Bachelor of Science in Civil Engineering, magna cum laude, from Tufts University College of Engineering, and a Master of Architecture from Harvard University. He was the recipient of the AIA Medal, an award given to the top-ranked architecture student at Harvard, a Frederick Sheldon Traveling Fellowship, and an Architectural Award from the National Society of Arts & Letters. He was Graham Foundation Scholar at Harvard in 1976 and is a member of Tau Beta Pi, the national honorary engineering fraternity. Greg received the high honor of being elevated to The College of Fellows of the American Institute of Architects in 2021. 

Gregory previously practiced as a partner of Muse-Wiedemann Architects, a firm that quickly became recognized as one of the premier design firms in the Washington area. Prior to establishing his own firm in 1984, Gregory practiced in the office of Frank Schlesinger Architects in Washington, D.C., where he was a member of the project design team for National Place, Holy Name Friary, and the US Embassy Marine Guard Quarters in Haiti.

In addition to his practice, he has been a member of the design and technology faculties of the School of Architecture at the University of Maryland, and a member of the faculty of Johns Hopkins University, where he taught a design course in the real estate development program. His academic work has been recognized by numerous regional and national awards, including an award for an ACSA International Design Competition and a national AIA Education Honor Award for excellence in design education at the University of Maryland.

Mr. Wiedemann is NCARB certified and has professional architectural registration in Maryland, District of Columbia, Virginia, West Virginia, Delaware, New York, and North Carolina.


Felix Gonzalez, AIA: Received a Master in Architecture from the University of Maryland and a Bachelor in Science and Environmental Design from the University of Puerto Rico.  Felix joined Wiedemann Architects in 2000.  Prior to joining the firm, he worked for Leo A. Daly and Davis, Carter & Scott both in the Washington DC area.




Gaby Castillo:  Received a Bachelor of Arts Degree in Studio Art from University of Maryland and a Master of Architecture Degree from the University of Maryland.  Gaby has been with the Wiedemann Architects since 1999.  


Andrew Dan:  Received both a Bachelor of Science and Master of Architecture from the University of Maryland.  He joined Wiedemann Architects in 2002.  Prior to joining the firm, he worked for Hickok Warner Fox Architects in Washington, DC.


Lindsay Field:  Received a Bachelor of Architecture Degree from Virginia Tech and has been a member of Wiedemann Architects since 2005. Prior to joining the firm, she worked at Design Associates and Claudia Noury-Ello Architects, both in the Boston metropolitan area.


Kathi Bogue:  Received a Bachelor of Fine Art in Interior Design from Northern Illinois University and a Master of Architecture Degree from Iowa State University and has been a member of Wiedemann Architects since 2001. Prior to joining the firm, she worked for Hatch Partnership Architects LLP,  Austin, TX, Architects Wells Woodburn O’Neill in Des Moines, IA, and  Setter Leach & Lindstrom, Minneapolis, MN.


Christian Bernier:  Recieved both a Bachelor's of Science in Architecture and a Master of Architecture Degree from The Catholic University of America in Washington, DC. He has been a member of Wiedemann Architects since 2018.   


Liz Wiedemann: Office Manager. Received a Bachelor of Science Degree from University of Delaware in Computer and Information Sciences. She joined Wiedemann Architects in 2013. Prior to joining the firm, she worked for several tech companies developing software and managing large system implementations.