Welcome to Mills Estates. Nestled on a generous 10,500 sqft lot in Millbrae's most sought-after neighborhood, this expansive single-family residence offers over 3,000 sqft of thoughtfully curated living space. 5 generously proportioned bedrooms and 4 full bathrooms, including 3 bedroom suites, create a refined balance of comfort, privacy, and versatility. Elegant formal living and dining rooms set the tone for elevated everyday living, anchored by a welcoming fireplace and complemented by a full bar ideal for entertaining. The gourmet kitchen is equipped with a Bertazzoni range and stainless steel appliances. Natural light flows throughout the home, enhancing the sense of openness across multiple living areas. The oversized primary suite offers a serene retreat with a spa-inspired bathroom featuring a jetted soaking tub and oversized shower stall. The expansive lot provides rare breathing room with opportunities for outdoor entertaining, and basking in your very own garden. The detached garage offers parking, storage, and ADU potential for added flexibility and privacy. Located near top schools, parks & trails, dining, major commuter routes, & Mills-Peninsula Medical Center, this is a rare opportunity to enjoy space, elegance, and lifestyle convenience in the heart of Millbrae.
MLS #
ML82032229
MLS Source
MLSListings, Inc.
Days on Site
3
Bedrooms
Primary Suite/Retreat - 2+, Walk-in Closet
Bathrooms
Primary - Stall Shower(s), Primary - Tub w/ Jets, Showers over Tubs - 2+, Solid Surface, Tile, Oversized Tub
Kitchen
Countertop - Granite
Appliances
Dishwasher, Garbage Disposal, Hood Over Range, Oven Range - Gas, Refrigerator, Washer/Dryer
Dining Room
Formal Dining Room
Family Room
Separate Family Room
Fireplace
Gas Burning, Living Room
Flooring
Hardwood, Tile
Laundry
In Utility Room
Cooling
Central Forced Air
Heating
Central Forced Air
Roof
Shingle
Foundation
Concrete Perimeter
Garage/Parking
Detached, Garage: 2 Car(s)
Elementary District
Millbrae Elementary
High School District
San Mateo Union High
Sewer
Public Sewer
Water
Public
Zoning
R10006
257 S Ashton Ave is a Single Family Residence in Millbrae, CA 94030. This 3,000 square foot property sits on a 10,500 Sq Ft Lot and features 5 bedrooms & 4 full bathrooms. It is currently priced at $2,988,000 and was built in 1956. This address can also be written as 257 S Ashton Ave, Millbrae, CA 94030.
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This listing information is up-to-date as of January 25, 2026. For the most current information, please contact Nestor Icaza, (650) 551-9899