Exact federal listing answer
Is Black, Dr. Walter, House on the National Register?
Yes · NPS status: Listed
Yes. Reference 91000045 is listed.
Yes. The U.S. National Park Service listed-properties dataset through May 22, 2026 identifies Black, Dr. Walter, House as Listed in the National Register of Historic Places under reference 91000045.
Federal statusListed
National Register reference91000045
Listed dateFebruary 20, 1991
Property categoryBuilding
Published address1125 Maple St.
LocalityLake Oswego, Clackamas County, Oregon
Significance levelLocal
Published acreage0.6
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.