Isaac Meason House

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Isaac Meason House
Isaac Meason House.jpg
Front of the house
Isaac Meason House is located in Pennsylvania
Isaac Meason House
Isaac Meason House is located in the US
Isaac Meason House
Location U.S. Route 119 North in Mount Braddock, Dunbar Township, Pennsylvania
Coordinates 39°56′31″N 79°38′55″W / 39.94194°N 79.64861°W / 39.94194; -79.64861Coordinates: 39°56′31″N 79°38′55″W / 39.94194°N 79.64861°W / 39.94194; -79.64861
Built 1802
Architect Isaac Meason; Adam Wilson
Architectural style Georgian, Other
NRHP Reference # 71000707
Significant dates
Added to NRHP January 25, 1971[2]
Designated NHL June 21, 1990[3]
Designated PHMC November 22, 1946[1]

Isaac Meason House, also known as "Mount Braddock," is a historic home located in Dunbar Township, Fayette County, Pennsylvania, part of the Pittsburgh metropolitan area. It was built from 1797 to 1802, and is a seven-part, Palladian style 20 room[4] mansion. It is one of only 2 Palladian plan "true cut" stone mansions in the U.S. the other being "Mount Airy" in Warsaw, Virginia.[4] Its namesake and original resident was a Revolutionary War hero and early political power broker in the area, becoming the richest person in Fayette County due to his interest in iron furnaces,[4] Meason also served for 4 years on the Supreme Executive Council of the Commonwealth of Pennsylvania. The house consists of a 2 1/2-story, main section flanked by two hyphens, end pavilions, and dependencies. It is built of ashlar sandstone. Also on the property are a contributing frame bank barn, two stone dependencies, the remains of a shed, a low cut-stone wall with entrance pylons, and a stone wellhead. [5]

It was declared a National Historic Landmark in 1990.[3]


  1. ^ "PHMC Historical Markers". Historical Marker Database. Pennsylvania Historical & Museum Commission. Retrieved December 20, 2013. 
  2. ^ National Park Service (2007-01-23). "National Register Information System". National Register of Historic Places. National Park Service. 
  3. ^ a b "Isaac Meason House". National Historic Landmark summary listing. National Park Service. Retrieved 2007-11-15. 
  4. ^ a b c
  5. ^ Dan G. Deibler and George E. Thomas (December 1, 1990). "National Register of Historic Places Registration: Isaac Meason House" (pdf). National Park Service.  and Accompanying 10 photos, exterior and interior, from 1989. (3.00 MB)

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