Frederick J. Osterling

Frederick John Osterling (October 4, 1865, Duquesne, Pennsylvania – July 5, 1934, Pittsburgh, Pennsylvania) was an American architect, practicing in Pittsburgh from 1888.

Frederick J. Osterling was born to Philip and Bertha Osterling in Dravosburg, Pennsylvania, in 1865. The Osterling family moved to Allegheny City when Frederick was young. Following his schooling in Allegheny City, Osterling began work in the office of Joseph Stillburg, and was published in American Architect and Building News at age 18. Following a period of European travel, he launched his own practice in 1888. During his career he designed many prominent Pittsburgh buildings, such as the Union Trust Building (1915–17). According to Martin Aurand, Architecture Librarian at Carnegie Mellon University in Pittsburgh, Osterling's practice faltered after controversy relating to his anticipated alteration to the landmark H.H. Richardson Allegheny County Courthouse and a public lawsuit filed by the industrialist Henry Clay Frick. Osterling's studio was in a building he designed himself in 1917 at 228 Isabella Street in Pittsburgh's North Shore neighborhood.

All buildings are in Pittsburgh unless otherwise stated; italics denote a registered Historic Landmark:

The 1889 bell tower from the former Bellefield Presbyterian Church is all that remains in front of the University of Pittsburgh's Bellefield Towers building

Westinghouse Air Brake Company General Office Building in Wilmerding, PA. Built in 1889-1890.

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