CnC Realty
1 / 50

$3,750,000

12639 Promontory Road

Los Angeles, CA 90049

Active

4

Beds

5

Baths

5,023

Sq. Ft.

1989

Year Built

Los Angeles

County

SingleFamilyResidence

Property Type

About this home

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.

Listed by Tania Ferris · DRE #00664167 · Coldwell Banker Realty
MLS #1190199117
ListedSep 8, 2026

Property Details

Architecture

Stories2
StyleN/A
Total UnitsN/A
RoofN/A
Garage Spaces3
PoolPrivate
SpaPrivate

Features & Amenities

Interior FeaturesLoft, Utility Room, Walk In Closets
Exterior FeaturesN/A
FlooringCarpet, Wood
CoolingCentral Air
HeatingCentral, Forced Air
FireplaceFamily Room, Gas, Living Room
LaundryInside, Laundry Room
Parking FeaturesDoor Multi, Garage
Parking Total3
Patio & PorchN/A
Entry LevelN/A
Entry LocationN/A
Common WallsNo Common Walls

Property Features

Lot Size6.17 ac
Lot FeaturesN/A
ViewMountains, Valley
DirectionsSepulveda to Mountaingate Dr. to Stoney Hill Rd, turn left, check in at guard station, proceed down Stoney Hill Rd, turn right onto Promontory to 12639 (right side of street).

Community

AreaC06 - Brentwood
School DistrictLos Angeles Unified

Tax & Financial

TermsN/A
Land LeaseN/A
HOA NameN/A
HOA Fee$1, 421 / Monthly

Request a Tour

Mortgage Estimate

$19,959/mo

20% down · 7% APR · 30-yr fixed

Estimate only. Does not include taxes, insurance, or HOA.

CRMLSLast updated: October 21, 2026 at 6:30 PM

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