21st at Montana, a 2010 low-rise in Santa Monica.
21st at Montana is a compact six-unit condominium at 853 21st Street in Santa Monica, completed in 2010. The two-story building was designed by architect William Hefner in a modern architectural idiom, with controlled access and HOA-maintained landscaping. Its small unit count and design pedigree make it a boutique alternative to the neighborhood's larger condo developments.
Contact a Condos of LA advisor for current availability, pricing, and a private tour of 21st at Montana.
Condos for sale & rent at 21st at Montana
Listings update automatically from the MLS. Availability and pricing are provided by the listing brokerages.
Recent sales at 21st at Montana
| Date | Residence | Beds/Baths | Sq Ft | Sale price | $/Sq Ft | HOA dues |
|---|---|---|---|---|---|---|
| Jun 2024 | 102 | 2 bd · 3 ba | 1,492 | $1,900,000 | $1,273 | $600/mo |
| Sep 2023 | 101 | 2 bd · 3 ba | 1,458 | $1,853,000 | $1,271 | $594/mo |
Closed sales at 21st at Montana from MLS records.
Amenities & services
What to know before you buy at 21st at Montana
The details that make or break a condo decision — current HOA dues and what they cover, parking, and the building's pet & leasing rules. Our advisors pull these straight from the building's HOA documents for any residence you're weighing.
Learn moreCompiled from public sources · last reviewed July 2026. We confirm current dues, reserves, lender and policy details for any residence you're considering.
In the heart of Santa Monica
21st at Montana places you at the center of Santa Monica, with the neighborhood's dining, shopping and character just outside your door and the rest of Los Angeles within easy reach.