1230 Winston Avenue San Marino CA 91108 | MLS #P1-28584
Nestled on a sprawling, park-like 0.57-acre double lot in one of San Marino’s most coveted neighborhoods, this Georgian Colonial estate offers a rare blend of timeless character and modern luxury. Designed by architect Cyril Bennett, known for his design of the Pasadena Playhouse and the Raymond Theater, this property features a meticulously updated 1941 home plus a detached, oversized luxury 4-car garage, complete with a kitchenette, built-in appliances, and gorgeous 3/4 bathroom. This is an excellent bonus space for a home gym, catering prep, or game room with every amenity imaginable – air-conditioning, built-in cabinets, walk-in closet, finished floor, and 2 pull-down staircases to the huge plywood-decked attic storage area. From the moment you enter the home, you will recognize its sophistication. The grand foyer features a sweeping staircase and a high domed ceiling. The formal living room, accented by crown molding, oak hardwood floors, large bay windows, and a gas fireplace, flows seamlessly through 2 sets of French doors to a stunning patio area. A beautiful library/family room provides a serene retreat, with cozy wood paneling and a built-in TV/entertainment center, offering picturesque views of the property’s lush landscaping and towering redwoods. The gourmet kitchen is mise en place made manifest, equipped with Viking stainless steel appliances, farmhouse porcelain sink, quartz countertops, a breakfast nook and access to the elegant dining room. Beyond the main residence, the estate excels in versatility. Descend the storybook stone stairs to a private outdoor oasis showcasing a waterfall, fireplace and plenty of seating for al fresco dining. A temperature-controlled secluded summer cottage, featuring French doors and a paver stone patio, provides an ideal spot for home office or studio. There is no shortage of entertaining spaces. The private rear yard features a built-in firepit, an outdoor kitchen with high-end built-in appliances, including a barbecue, sink, cooktop and refrigerator. With an abundance of amenities, upgrades, and entertainment space, this property is a rare find. The system updates include a new 400-amp electrical panel, updated wiring and plumbing, dual 5-ton HVAC units, 2 water heaters, an automatic driveway gate and plenty of on-site parking. Conveniently situated near the Huntington Library and San Marino High School, this exceptional property seamlessly integrates classic elegance with contemporary functionality.
Property Details
Price:
$4,988,000
MLS #:
P1-28584
Status:
Active
Beds:
3
Baths:
3
Type:
Single Family
Subtype:
Single Family Residence
Neighborhood:
655sanmarino
Listed Date:
Aug 24, 2026
Finished Sq Ft:
4,022
Lot Size:
24,847 sqft / 0.57 acres (approx)
Year Built:
1941
See this Listing
Schools
Interior
Appliances
Tankless Water Heater, Double Oven, Gas Oven, Ice Maker, Water Softener, Range Hood, Built-In Range, Refrigerator, Barbecue, Freezer, Gas Range, 6 Burner Stove, Dishwasher, Microwave, Water Heater
Bathrooms
1 Full Bathroom, 2 Three Quarter Bathrooms, 1 Half Bathroom
Cooling
Dual, Central Air, Ductless
Flooring
Tile, Wood
Heating
Forced Air, Central
Interior Features
Crown Molding, Balcony, Built-in Features, Wainscoting, Pantry, Recessed Lighting, Storage, Copper Plumbing Full, Stone Counters
Laundry Features
Laundry Room
Levels
Two
Main Level Bathrooms
2
Exterior
Accessibility Features
Parking
Architectural Style
Colonial, Georgian
Common Walls
No Common Walls
Community Features
Gutters, Curbs, Street Lights, Storm Drains, Sidewalks, Park
Construction Materials
Brick, Concrete, Stucco
Covered Spaces
4
Direction Faces
West
Exterior Features
Awning(s), Balcony, Rain Gutters, Barbecue, Lighting
Fencing
Chain Link, Brick, Wrought Iron
Garage Spaces
4
Lot Features
Sprinklers In Front, 0-1 Unit/Acre, Sprinklers Timer, Garden, Front Yard, Sprinkler System, Back Yard, Yard, Lawn
Open Parking YN
1
Other Structures
Guest House Detached
Parking Features
Garage, Gated, Tandem Covered, Garage – Single Door, Driveway, Side By Side, Garage Door Opener
Parking Spots
4
Parking Total
4
Patio And Porch Features
Brick, Concrete, Patio Open
Roof
Wood, Shake
Security Features
Carbon Monoxide Detector(s), Security System, Smoke Detector(s), Automatic Gate
Spa Features
None
View
None
Window Features
Drapes, Custom Covering, Skylight(s)
Financial
Map
Community
- Address1230 Winston Avenue San Marino CA
- CitySan Marino
- CountyLos Angeles
- Zip Code91108
Market Summary
Current real estate data for Single Family in San Marino as of Oct 19, 2026
50
Single Family Listed
58
Avg DOM
1,035
Avg $ / SqFt
$3,703,684
Avg List Price
Property Summary
- 1230 Winston Avenue San Marino CA is a Single Family for sale in San Marino, CA, 91108. It is listed for $4,988,000 and features 3 beds, 3 baths, and has approximately 4,022 square feet of living space, and was originally constructed in 1941. The current price per square foot is $1,240. The average price per square foot for Single Family listings in San Marino is $1,035. The average listing price for Single Family in San Marino is $3,703,684. To schedule a showing of MLS#p1-28584 at 1230 Winston Avenue in San Marino, CA, contact your Compass agent at 310.409.7242.
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Courtesy of The Agency. Disclaimer: All data relating to real estate for sale on this page comes from the Broker Reciprocity (BR) of the California Regional Multiple Listing Service. Detailed information about real estate listings held by brokerage firms other than Compass include the name of the listing broker. Neither the listing company nor Compass shall be responsible for any typographical errors, misinformation, misprints and shall be held totally harmless. The Broker providing this data believes it to be correct, but advises interested parties to confirm any item before relying on it in a purchase decision. Copyright 2026. California Regional Multiple Listing Service. All rights reserved.1230 Winston Avenue
San Marino, CA
