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409 21st St, Santa Monica, CA 90402

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For Sale

$12,495,000

4 beds • 5 baths • 2 half baths • 6,860 sqft

Estimated Payment

$      /mo. †

APR for 30 years

Change Loan Terms

  • Single Family Detached
    Property type

  • $1,821.43
    Price per square foot

  • 1-5 Years Old
    Age

Explore this Property

Set in the esteemed North of Montana neighborhood of Santa Monica on a nearly 9,000 SF oversized lot, this custom-built new construction blends quality craftsmanship with exceptional amenities and scale. Spanning 6,860 SF with 4 bedrooms + office and 7 bathrooms across three levels, this home delivers seamless indoor-outdoor flow and expansive spaces built for elevated living and entertaining. The main level offers soaring ceilings and expansive living spaces, including a formal living room, dining room, dedicated office, and an open-concept kitchen outfitted with bespoke cabinetry, butler's pantry, and Miele, Sub-Zero, and Wolf appliances. Fleetwood doors connect the interiors to a private backyard retreat featuring a heated pool and spa with automatic cover, a built-in BBQ and pizza oven, and multiple zones for dining and lounging. Upstairs, wide-plank oak flooring leads to three generously sized en-suite bedrooms, including a reimagined primary suite with a newly expanded oversized walk-in closet. The amenity-rich basement level includes a lounge and bar, movie theater, wine cellar, guest suite, and full spa with both wet and dry saunas. Mature ficus trees line the front of the home for added privacy and additional highlights include solar panels, multi-zone climate control, Control4 smart home system, and a three-car garage. Located just moments from Montana Avenue, San Vicente, and Brentwood Country Club, this home offers a rare opportunity to enjoy scale, privacy, and convenience in one of the Westside's most sought-after neighborhoods.
MLS# 25561409

Courtesy Of Compass

(310) 437-7500

Open Houses

July

27

Sunday

In Person

Sunday, July 27, 2025

2:00PM - 5:00PM

Property Features

  • Age
    1-5 Years Old
  • Architecture Style
    Spanish
  • Exterior Type
    Stucco
  • Floor Covering
    Engineered Wood, Hardwood, Tile, Wood
  • Lot Size
    0.21 Acres
  • Rooms
    Den, Dining Room, Great Room, Living Room, Office, Sauna

Map and Directions

Directions to 409 21st St, Santa Monica, CA 90402

Home seller CENTURY 21 Hollywood

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CENTURY 21 Hollywood

(323) 462-7436
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This information is provided for general informational purposes only and should not be relied on in making any home-buying decisions. School information does not guarantee enrollment. Contact a local real estate professional or the school district(s) for current information on schools. This information is not intended for use in determining a person's eligibility to attend a school or to use or benefit from other city, town or local services.

† Based on a 30-year fixed rate of 3.38% with 20% down. The estimated payment is offered for convenience and is not an offer of credit. Due to market fluctuations, interest rates are subject to change at any time and without notice. Interest rates are also subject to credit and property approval based on secondary market guidelines. The rates shown are based on average rates for our best qualified customers. Your individual rate may vary. Rates may differ for FHA, VA or jumbo loans.

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