Observatory Hill
Many listed buildings are private homes. Please enjoy them from the street.
About the district
Observatory Hill, at 23rd & E Sts., NW., was added to the National Register of Historic Places on Jan 12, 2017. The Register lists it for its architecture, archeology, historic - non-aboriginal and education, at the national level. The district takes in 12 historic buildings. The listing covers 14.6 acres. Four more Register listings are within a quarter mile.
Make it a walk: 5 landmarks in about 10 minutes
23rd & E Sts., NW., Washington · about 0.4 miles on foot, as the crow flies
26 more Register listings within half a mile
★ National Historic Landmark · D district · B building · S site. Each opens its own page.
Show the other 8
Memories of Observatory Hill
The record says what it is. Neighbors know what it means.
Your answer becomes a post in Town Square.
Questions about Observatory Hill
Is Observatory Hill on the National Register of Historic Places?
Yes. It was added on Jan 12, 2017 (Register number 100000479).
Is Observatory Hill a National Historic Landmark?
No. It is on the National Register; District of Columbia has 75 National Historic Landmarks. The nearest is Old Naval Observatory, 0 miles away.
Can you visit Observatory Hill?
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) · Wikidata. Map tiles © OpenStreetMap contributors.