Pennington Cottage  The Pennington Cottage is a historic home located at Deer Park, Garrett County, Maryland, United States. It is a -story, late-19th-century Shingle-Style frame structure, with a gambrel roof and a one-story porch that stretches across the principal facade and along portions of the sides. The house is entirely covered with dark wood shingles. It was built as a part of the Baltimore and Ohio Railroad's Deer Park Hotel complex, as the summer home of Baltimore architect Josias Pennington (d. 1929). Pennington Cottage was listed on the National Register of Historic Places in 1976.