LOCALLA


















































$3,750,000
12639 Promontory Rd Los Angeles CA 90049
Residential
Built 1989
N/A
$747/sqft
No HOA
N/A
What's Special
Over 5,000 square feet of grand-scale living with 24-hour guard gated security in the picturesque Mountaingate community of Brentwood. An extraordinary combination of space, security, privacy and resort-style living, this 4BR, 4.50BA home is one of the most ideal retreats in LA! Soaring ceilings, dramatic architectural volume, tall doors, oversized windows and sweeping open views create light-filled interiors with an impressive sense of scale from the moment you enter. The main level features expansive living and dining rooms, a comfortable family room, and spacious kitchen with breakfast area. Upstairs, a library provides an ideal setting for a home office, study or relaxed den for family members to enjoy. The generous primary suite features a veranda, fireplace, high ceilings and large bath with dual amenities and two walk-in closets. BR's 2,3 and 4 are all ensuite and offer full privacy on their own wings. Hardwood floors throughout much of the residence, three fireplaces and a three-car garage complete the interior. Outside, a low-maintenance backyard creates its own resort-like setting with BBQ, entertainers patios, a refreshing pool and an exceptionally large spa with ample room for exercise or simply relaxing outdoors. Ready to enjoy today with minor remodeling while offering an exceptional opportunity to personalize over time. For more than two decades, this was the longtime home of NBA veteran and trailblazer Jason Collins, a groundbreaking figure whose influence and legacy extended far beyond the basketball court. Mountaingate offers a unique park-like environment with 24-hour guard-gated security and hourly manned patrols, beautifully maintained common-area landscaping, trash-can services, community pool and spa, alarm monitoring and other community services. Enjoy the breathtaking Santa Monica conservatory mountains with its glorious hiking trails and stunning natural terrain. Plus, great schools - Roscomare, Paul Revere and Palisades High. Optional membership at Mountaingate Country Club offers golf, tennis and social memberships with restaurant and gym/fitness facilities. Conveniently located near the Getty, UCLA , USC and the best dining and shopping of Brentwood and the Westside. Offered at approximately $747 per square foot, this is an exceptional opportunity to own more than 5,000 square feet in Brentwood and a remarkable combination of scale, security, privacy and value. TRUST SALE, As Is condition, no court confirmation needed. Please use Trust Advisory with offer.
Days On Market: 29
Listing updated: October 8, 2026 at 06:35 AM
Listed by: Tania Ferris DRE #00664167, Coldwell Banker Realty
Features & Facts
Interior
- Bedrooms: 4
- Bathrooms: 5 full, 1 half
- Square Feet: 5023
- Year Built: 1989
- Flooring: Wood, Carpet
- Fireplaces: 3
- Family Room: Yes
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Tour with Localla
LOCALLA was built by Tony O'Brien, a REALTOR with The Sher Group, to give buyers a direct and transparent way to search and tour homes. No selling your data. No partner agents. Just Tony.
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Contact a Buyer's Agent
Connect with Tony O'Brien — REALTOR, The Sher Group & LOCALLA
Consent not required to use LOCALLA. See our Privacy Policy.
The Sher Group and Tony O'Brien are not mortgage brokers or lenders and do not provide financing. If you opt in, we may refer you to a third-party licensed mortgage professional. We do not guarantee loan approval, rates, or terms.
Nearby Homes For Sale
© 2026 The MLS™ - Combined L.A. Westside MLS (CLAW). All rights reserved. Based on information from The MLS™ - Combined L.A. Westside MLS (CLAW) as of 10/9/2026, 5:11:23 AM. All data, including all measurements and calculations of area, is obtained from various sources and has not been, and will not be, verified by broker or MLS. All information should be independently reviewed and verified for accuracy. Properties may or may not be listed by the office/agent presenting the information. IDX information is provided exclusively for personal, non-commercial use, and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. Information is deemed reliable but not guaranteed.
Tony O'Brien DRE #02200838 | The Sher Group DRE #02022464
Equal Housing Opportunity
Tour with Localla
LOCALLA was built by Tony O'Brien, a REALTOR with The Sher Group, to give buyers a direct and transparent way to search and tour homes. No selling your data. No partner agents. Just Tony.
Select a date and time
Nearby Homes For Sale
Contact a Buyer's Agent
Connect with Tony O'Brien — REALTOR, The Sher Group & LOCALLA
Consent not required to use LOCALLA. See our Privacy Policy.
The Sher Group and Tony O'Brien are not mortgage brokers or lenders and do not provide financing. If you opt in, we may refer you to a third-party licensed mortgage professional. We do not guarantee loan approval, rates, or terms.
© 2026 The MLS™ - Combined L.A. Westside MLS (CLAW). All rights reserved. Based on information from The MLS™ - Combined L.A. Westside MLS (CLAW) as of 10/9/2026, 5:11:23 AM. All data, including all measurements and calculations of area, is obtained from various sources and has not been, and will not be, verified by broker or MLS. All information should be independently reviewed and verified for accuracy. Properties may or may not be listed by the office/agent presenting the information. IDX information is provided exclusively for personal, non-commercial use, and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. Information is deemed reliable but not guaranteed.
Tony O'Brien DRE #02200838 | The Sher Group DRE #02022464
Equal Housing Opportunity








