Exact federal listing answer
Is The Gem on the National Register?
Yes · NPS status: Listed
Yes. Reference 91000852 is listed.
Yes. The U.S. National Park Service listed-properties dataset through May 22, 2026 identifies The Gem as Listed in the National Register of Historic Places under reference 91000852.
Federal statusListed
National Register reference91000852
Listed dateJune 28, 1991
Property categoryBuilding
Published address400 E. 13th St.
LocalityBrownsville, Cameron County, Texas
Significance levelLocal
Published acreage0.9
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: COMMUNITY PLANNING AND DEVELOPMENT, POLITICS/GOVERNMENT, ARCHITECTURE.
Other published names: Rosers Customs Service Building.
Same locality
Other released Brownsville records.
Each linked page answers a separate named federal record.