
Hatt Building
Many listed buildings are private homes. Please enjoy them from the street.
About Hatt Building
Hatt Building, at 5th and Main Sts., was added to the National Register of Historic Places on May 2, 1977. It was among the first 7 of Napa’s 41 listings. The Register lists it for its industry, at the local level. 11 more Register listings are within a quarter mile.
What it isHistoric building in Napa, California, United States. From Wikidata (CC0).
PDFRead the original nominationThe form that put it on the Register, with its history, photos and a map · 21 MB · National Archives↗Make it a walk: 5 landmarks in about 10 minutes
5th and Main Sts., Napa · about 0.3 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 Hatt Building
The record says what it is. Neighbors know what it means.
Your answer becomes a post in Town Square.
Questions about Hatt Building
Is Hatt Building on the National Register of Historic Places?
Yes. It was added on May 2, 1977 (Register number 77000316).
Is Hatt Building a National Historic Landmark?
No. It is on the National Register; California has 141 National Historic Landmarks. The nearest is Sonoma Plaza, 9.3 miles away.
Can you visit Hatt 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 Hatt Building?
In its National Register nomination, the form that put it on the Register: a 21 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 123860032 · Wikidata. Map tiles © OpenStreetMap contributors.



