National Museum of Natural History Sant Ocean Hall

Smithsonian Institution • Washington, DC

Restoring a Historic Grand Hall

Designed in the Beaux Arts style, the National Museum of Natural History opened in 1910 and continues to be one of the world’s most popular museums today. The renovation of the 23,000-square-foot Sant Ocean Hall restored the Central Hall space to its early 20th-century appearance, including opening up second-story balconies, dismantling a 1960s-era mezzanine, and reopening the main entrance. Mueller Associates designed new building systems for the project, which was the largest renovation in the museum’s 100-year history.


Quinn Evans Architects

Client History

2018: National Air and Space Museum Revitalization; Quinn Evans Architects
2018: National Air and Space Museum Udvar-Hazy Center Hangar Swing Space; Ayers Saint Gross
2016: Hirshhorn Conservation Laboratory; Cho Benn Holback + Associates
2014: National Air and Space Museum Exterior Envelope and HVAC Replacement Study; Quinn Evans Architects
2014: Freer Gallery of Art Auditorium Renovation; Cho Benn Holback + Associates
2013: National Postal Museum William H. Gross Stamp Gallery; Cho Benn Holback + Associates
2011: National Museum of Natural History East Wing HVAC Renovation; Quinn Evans Architects
2010: National Air and Space Museum Electrical Systems Replacement; Cho Benn Holback + Associates
2008: National Museum of Natural History Sant Ocean Hall; Quinn Evans Architects
2004: Osteoprep Lab Building Ventilation Study & Repairs; Cho Benn Holback + Associates
2002: Sackler Gallery Mezzanine; GWWO Architects
1987: National Air and Space Museum Third-Floor Renovation; RCG Architects
1987: Castle Building North Tower Expansion; RCG Architects
1987: Renwick Gallery - HVAC Analysis; RCG Architects
1986: Paul E. Garber Facility Preservation, Restoration & Storage Facility; RCG Architects
1986: National Museum of American History Engines of Change Exhibit; RCG Architects
1985: Arts & Industries Building Master Plan
1984: American Art Museum Lincoln Gallery
1980: Cooper-Hewitt Museum Environmental Controls & Electrical Systems Upgrades
1978: National Portrait Gallery HVAC Renovations

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