structure #107793270building

Commonwealth Annex

existing 7 floors 1888

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Floors	7
Completion	1888
Structural Form	low-rise building
Main Usage	commercial office
Status	existing
Architectural Style	neo-romanesque
Address	319 Third Avenue
Smart Address	317–323 Third Avenue
City	Pittsburgh
Country	United States

Source: SKYDB | As of: 2026-09-16

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Photo 403-397-036

Library of Congress, Prints and Photographs Division, Detroit Publishing Company
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Photo 788-242-893

Library of Congress, Prints and Photographs Division, Detroit Publishing Company

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Commonwealth Annex

existing 7 floors 1888

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Commonwealth Annex

existing | 7 floors | 1888

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existing 7 floors 1888

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