Ascension Estates
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1230 Winston Avenue
Active

$4,988,000

1230 Winston Avenue, San Marino, CA 91108

3Beds
4Baths
4,022Sq Ft
2Days on Market
Listed by Sarah Rogers, The Agency Listing contact: (626) 390-0511
Price per sq ft$1,240
Built in1941
Lot size0.57 acres
Property typeSingle Family

Overview

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.

See it in person

Kurt will walk you through it. No pressure, no runaround.

Kurt Mellinger | Equity Union Real Estate | DRE #02238998

Location

Approximate location of 1230 Winston Avenue, San Marino. Map data © OpenStreetMap contributors © CARTO.

Features

Property typeSingle Family Residence
Year built1941
Living area4,022 sq ft
Lot size0.57 acres
Bedrooms3
Bathrooms4 (1 full, 1 half)
Stories
Private poolNot indicated
HOA feeNone listed
Price per sq ft$1,240
Days on market2
MLS #P1-28584

Estimated monthly payment

/ month
Principal & interest
Property tax (est.)
Home insurance (est.)
HOA / common charges
Down payment
Loan amount

These estimates are for informational purposes only and are not a loan offer, pre-qualification, or commitment to lend. Actual amounts will vary with your rate, credit, taxes, insurance, and HOA dues. Property tax and insurance figures are rough estimates, not the amounts assessed on this property. Confirm all figures with a licensed lender.

Similar properties

Based on information from California Regional Multiple Listing Service, Inc. as of August 26, 2026 at 1:48 PM and/or other sources. 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. Any amount of compensation or commission stated is made only to participants of CRMLS or an MLS that has entered into a datashare agreement with CRMLS.