Exact federal listing answer
Is Byrnes & Kiefer Building on the National Register?
Yes · NPS status: Listed
Yes. Reference 85000457 is listed.
Yes. The U.S. National Park Service listed-properties dataset through May 22, 2026 identifies Byrnes & Kiefer Building as Listed in the National Register of Historic Places under reference 85000457.
Federal statusListed
National Register reference85000457
Listed dateMarch 7, 1985
Property categoryBuilding
Published address1127-1133 Penn Ave.
LocalityPittsburgh, Allegheny County, Pennsylvania
Significance levelLocal
Published acreage0.2
Exact answer boundaryThis confirms the named federal record only.
It does not prove that another address lies inside this property or district, establish local landmark status, decide preservation review, define a legal boundary, or describe ownership or current condition.
Why the wording is date-boundedThe answer reflects the NPS dataset published through May 22, 2026 and a live NPS GIS Listed-status cross-check made September 20, 2026. NPS notes that spatial points and polygons may need correction and are not legal documents.
Additional published fields
Areas of significance: COMMERCE, ARCHITECTURE.
Other published names: 1133 Penn Avenue Building, Gloekler Building.
Same locality
Other released Pittsburgh records.
Each linked page answers a separate named federal record.