Exact federal listing answer
Is Twenty-One Ranchhouse on the National Register?
Yes · NPS status: Listed
Yes. Reference 78001088 is listed.
Yes. The U.S. National Park Service listed-properties dataset through May 22, 2026 identifies Twenty-One Ranchhouse as Listed in the National Register of Historic Places under reference 78001088.
Federal statusListed
National Register reference78001088
Listed dateDecember 18, 1978
Property categoryBuilding
Published addressS of Lewiston at 7570 Waha Rd.
LocalityLewiston, Nez Perce County, Idaho
Significance levelState
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: ARCHITECTURE.
Same locality
Other released Lewiston records.
Each linked page answers a separate named federal record.