Warnock Building
Also known as Benson Building
Many listed buildings are private homes. Please enjoy them from the street.
About Warnock Building
Warnock Building, at 701-705 Douglas St., was added to the National Register of Historic Places on Feb 13, 2023. The Register lists it for its commerce, engineering and transportation, at the local level. Seven more Register listings are within a quarter mile.
Make it a walk: 5 landmarks in about 5 minutes
701-705 Douglas St., Sioux City · about 0.2 miles on foot, as the crow flies















13 more Register listings within half a mile
★ National Historic Landmark · D district · B building · S site. Each opens its own page.
Memories of Warnock Building
The record says what it is. Neighbors know what it means.
Your answer becomes a post in Town Square.
Questions about Warnock Building
Is Warnock Building on the National Register of Historic Places?
Yes. It was added on Feb 13, 2023 (Register number 100008628).
Is Warnock Building a National Historic Landmark?
No. It is on the National Register; Iowa has 22 National Historic Landmarks. The nearest is Woodbury County Courthouse, 0.1 miles away.
Can you visit Warnock Building?
Our record doesn’t say whether it is open to visitors. Many listed buildings are private, so it may only be seen from the street.
Sources: National Park Service, National Register of Historic Places (05/22/2026). Map tiles © OpenStreetMap contributors.



