Milligan House
Many listed buildings are private homes. Please enjoy them from the street.
About Milligan House
Milligan House, at 323 W. Aspen, was added to the National Register of Historic Places on Nov 29, 1984. It was among the first 9 of Flagstaff’s 40 listings, with one other the same day. The Register lists it for its industry and architecture, at the local level. Five more Register listings are within a quarter mile.
What it isHistoric house in Flagstaff, Arizona, United States. From Wikidata (CC0).
PDFRead the original nominationThe form that put it on the Register, with its history, photos and a map · 38 MB · National Archives↗Make it a walk: 5 landmarks in about 15 minutes
323 W. Aspen, Flagstaff · about 0.5 miles on foot, as the crow flies
22 more Register listings within half a mile
★ National Historic Landmark · D district · B building · S site. Each opens its own page.
Memories of Milligan House
The record says what it is. Neighbors know what it means.
Your answer becomes a post in Town Square.
Questions about Milligan House
Is Milligan House on the National Register of Historic Places?
Yes. It was added on Nov 29, 1984 (Register number 84000389).
Is Milligan House a National Historic Landmark?
No. It is on the National Register; Arizona has 35 National Historic Landmarks. The nearest is Lowell Observatory, 0.6 miles away.
Can you visit Milligan House?
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 Milligan House?
In its National Register nomination, the form that put it on the Register: a 38 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 75609822 · Wikidata. Map tiles © OpenStreetMap contributors.