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A rare opportunity to own a piece of Santa Monica architectural history in the highly coveted North of Montana neighborhood. Known as the Walter Boswell Residence, this distinguished Spanish Colonial Revival home was designed and built in 1925 by noted architect John Byers, recognized as one of Santa Monica's foremost architects of the early 20th century. Offered for sale for the first time in more than 60 years, the residence features 5 bedrooms and 3 bathrooms across approximately 2,713 square feet of living space on a 7,212-square-foot lot. Rich in history, character, and architectural pedigree, the property presents an exceptional opportunity to preserve, restore, or thoughtfully reimagine an important Santa Monica residence. Ideally situated just moments from the boutiques, cafes, restaurants, and neighborhood conveniences of Montana Avenue, as well as nearby schools, Palisades Park, the scenic coastal bluffs, Santa Monica Beach, and the Pacific Ocean. With its premier North of Montana setting, historic provenance, and enduring Spanish Colonial Revival architecture, 624 Alta Avenue represents a truly special offering in one of Santa Monica's most sought-after residential neighborhoods.
Listing agent: Mark Cianciulli DRE #01990266 mark@cremgroupre.com, Listing office: The CREM Group
MLS data updated 10/16/2026, 7:22:51 PM PT
Source: CRMLS, MLS #: 26992039
Belmont insights
Compare recorded home prices, same-type ZIP sales and mortgage rates.
Sep 24, 2026
Prices use the left axis; mortgage rates use the right. Hover, tap, or focus the chart and use the arrow keys. Red SOLD badges mark recorded sales.
This home · nearest recorded event
$3,895,000Original asking price · Sep 24, 2026ZIP 90402 · Sep 2026
No monthly averageAt least 3 eligible sales in this month are required.30-year fixed mortgage benchmark
No weekly rateNo published rate within 7 days of this date.No recorded sales in this range. Select All available for older records; missing records do not mean the home never sold.
ZIP averages use publicly displayable closed sales from our licensed MLS feed, matched to the same ZIP and exact property type. Months with fewer than 3 sales are omitted; the current month is incomplete. Lines connect available monthly observations across gaps and do not represent measured prices in missing months. These averages are not adjusted for size, condition, or location within the ZIP, and are not an appraisal. Feed coverage may not include every sale. All available shows the available home and ZIP history, with mortgage rates over the same dates.
Mortgage benchmark: Freddie Mac Primary Mortgage Market Survey®. © Freddie Mac. Weekly national 30-year fixed rates, not APRs or a loan quote. Actual terms vary. Methodology changed in November 2022. The chart does not establish that interest-rate changes caused a home’s price changes.
Lines connect recorded asking and sale prices. They are visual guides, not estimates of the home’s value between those dates.
No earlier records were returned by our current sources. This does not mean the home has never sold.
MLS records may be incomplete. Earlier asking prices are not sale prices.