Elmridge (also known as Elm Ridge, or James Gardiner Coffin House, or J.G. Coffin House or John Walker House) located at 1 Breck Drive in Leetsdale, Pennsylvania, was built in 1869. The architectural plans were published in Hobbs Architecture, 1873. The house was added to the National Register of Historic Places on May 10, 2005, and to the List of Pittsburgh History and Landmarks Foundation Historic Landmarks in 2007.[2]

Elmridge is located in Pennsylvania
Elmridge is located in the United States
Location1 Breck Drive (at the corner of Beaver Street and Camp Meeting Road), Leetsdale, Pennsylvania, USA
Coordinates40°33′49.49″N 80°12′15.2″W / 40.5637472°N 80.204222°W / 40.5637472; -80.204222Coordinates: 40°33′49.49″N 80°12′15.2″W / 40.5637472°N 80.204222°W / 40.5637472; -80.204222
Built1869; Plan published in Hobbs Architecture, 1873
ArchitectIsaac Hobbs (architect), David Kerr (builder)
Architectural styleItalianate
NRHP reference No.05000412[1]
Significant dates
Added to NRHPMay 10, 2005[1]
Designated PHLF2007[2]


  1. ^ a b "National Register Information System". National Register of Historic Places. National Park Service. March 13, 2009.
  2. ^ a b Historic Landmark Plaques 1968-2009 (PDF). Pittsburgh, PA: Pittsburgh History & Landmarks Foundation. 2010. Retrieved 2011-07-28.