X-100
Many listed buildings are private homes. Please enjoy them from the street.
About X-100
X-100, at 1586 Lexington Ave., was added to the National Register of Historic Places on Jun 20, 2016. The Register lists it for its architecture, at the local level.
What it isExperimental steel house in California. From Wikidata (CC0). Read about it on Wikipedia ↗
Finding X-100
1586 Lexington Ave., Highlands
No other Register listing is within a short walk. The nearest are under Around it.
1 more Register listing within 2 miles
★ National Historic Landmark · D district · B building · S site. Each opens its own page.
Memories of X-100
The record says what it is. Neighbors know what it means.
Your answer becomes a post in Town Square.
Questions about X-100
Is X-100 on the National Register of Historic Places?
Yes. It was added on Jun 20, 2016 (Register number 16000381).
Is X-100 a National Historic Landmark?
No. It is on the National Register; California has 141 National Historic Landmarks. The nearest is William C. Ralston House, 3.7 miles away.
Can you visit X-100?
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.