Keystone Building
Many listed buildings are private homes. Please enjoy them from the street.
About Keystone Building
Keystone Building, at 30 S. Stolp Ave., was added to the National Register of Historic Places on Mar 18, 1980. It was among the first 7 of Aurora’s 29 listings, with one other the same day. The Register lists it for its architecture, at the national level. It describes its style as Prairie School, as it does for 94 other Illinois listings. 14 more Register listings are within a quarter mile.
What it isBuilding in Aurora, Illinois, United States. From Wikidata (CC0). Read about it on Wikipedia ↗
PDFRead the original nominationThe form that put it on the Register, with its history, photos and a map · 23 MB · National Archives↗Make it a walk: 5 landmarks in about 5 minutes
30 S. Stolp Ave., Aurora · about 0.1 miles on foot, as the crow flies
17 more Register listings within half a mile
★ National Historic Landmark · D district · B building · S site. Each opens its own page.
Prairie School style, nearby
Other National Register listings within 25 miles described as Prairie School.
Memories of Keystone Building
The record says what it is. Neighbors know what it means.
Your answer becomes a post in Town Square.
Questions about Keystone Building
Is Keystone Building on the National Register of Historic Places?
Yes. It was added on Mar 18, 1980 (Register number 80001370).
Is Keystone Building a National Historic Landmark?
No. It is on the National Register; Illinois has 86 National Historic Landmarks. The nearest is Sam and Ruth Van Sickle Ford House, 2.2 miles away.
Can you visit Keystone 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.
Where can I read the history of Keystone Building?
In its National Register nomination, the form that put it on the Register: a 23 MB PDF at the National Archives, linked on this page.
Sources: National Park Service, National Register of Historic Places (05/22/2026) · National Archives catalog record 28893128 · Wikidata. Map tiles © OpenStreetMap contributors.