Exact federal listing answer
Is Jahn, William F., Farmstead on the National Register?
Yes · NPS status: Listed
Yes. Reference 00000978 is listed.
Yes. The U.S. National Park Service listed-properties dataset through May 22, 2026 identifies Jahn, William F., Farmstead as Listed in the National Register of Historic Places under reference 00000978.
Federal statusListed
National Register reference00000978
Listed dateAugust 10, 2000
Property categoryBuilding
Published address12112-12116 N. Wauwatosa Rd.
LocalityMequon, Ozaukee County, Wisconsin
Significance levelLocal
Published acreage3
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 Mequon records.
Each linked page answers a separate named federal record.