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

Client History

2024: National Air and Space Museum Revitalization; Quinn Evans
2022: Molina Family Latino Gallery, National Museum of American History; Quinn Evans
2020: National Native American Veterans Memorial; Quinn Evans
2019: National Air and Space Museum Dulles Collections Center; Ayers Saint Gross
2018: Conservation Pavilion, National Zoo & Conservation Biology Institute: Quinn Evans
2016: Hirshhorn Conservation Laboratory; Quinn Evans
2014: National Air and Space Museum Exterior Envelope and HVAC Replacement Study; Quinn Evans
2014: Freer Gallery of Art Auditorium Renovation; Quinn Evans
2013: National Postal Museum William H. Gross Stamp Gallery; Quinn Evans
2011: National Museum of Natural History East Wing HVAC Renovation; Quinn Evans
2010: National Air and Space Museum Electrical Systems Replacement; Quinn Evans
2008: National Museum of Natural History Sant Ocean Hall; Quinn Evans
2004: Osteoprep Lab Building Ventilation Study & Repairs; Quinn Evans
2002: Sackler Gallery Mezzanine; GWWO Architects
1987: National Air and Space Museum Third-Floor Renovation; JMT Architecture
1987: Castle Building North Tower Expansion; JMT Architecture
1987: Renwick Gallery - HVAC Analysis; JMT Architecture
1986: Paul E. Garber Facility Preservation, Restoration & Storage Facility; JMT Architecture
1986: National Museum of American History Engines of Change Exhibit; JMT Architecture
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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