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 Leetsdale is a borough in Allegheny County, Pennsylvania, United States. Located along the Ohio River, it is part of the Pittsburgh Metro Area. The population was 1,162 at the 2020 census. History Leetsdale was incorporated on March 28, 1904. ...

, was built in 1869. The architectural plans were published in Hobbs Architecture, 1873. The house was added to the

National Register of Historic Places The National Register of Historic Places (NRHP) is the Federal government of the United States, United States federal government's official United States National Register of Historic Places listings, list of sites, buildings, structures, Hist ...

on May 10, 2005, and to the

List of Pittsburgh History and Landmarks Foundation Historic Landmarks The Pittsburgh History and Landmarks Foundation (PHLF) Historic Landmark plaque program was begun in 1968 in order to identify architecturally significant structures and significant pieces of Pittsburgh, Pennsylvania, United States's local herit ...

in 2007.

References

{{National Register of Historic Places in Pennsylvania Houses on the National Register of Historic Places in Pennsylvania Houses in Allegheny County, Pennsylvania Houses completed in 1869 Italianate architecture in Pennsylvania Pittsburgh History & Landmarks Foundation Historic Landmarks 1869 establishments in Pennsylvania National Register of Historic Places in Allegheny County, Pennsylvania