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$2,988,000 Just Listed

  • For Sale
  • Active
  • Single Family
  • 5 Beds
  • 4 Full Baths
  • 3,000 Sq. Ft.
  • 2 Car Garage
  • Updated 1 day ago

Next open house:

Open House: 10:00 AM - 1:00 PM

Tuesday 1/27 10:00 AM - 1:00 PM

257 S Ashton Ave,Millbrae, CA 94030

257 S Ashton AveMillbraeCA94030

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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.

Full Property Details for 257 S Ashton Ave

General

  • Price: $2,988,000
  • Status: Active
  • Type: Single Family
  • Source: RE_Infolink
  • MLS ID: ML82032229
  • Updated: 1/23/2026
  • Added to Site: 3 day(s) ago

Interior

  • Rooms/Areas: Den / Study / Office
  • Interior Features: High Ceiling , Security Gate, Skylight, Walk-In Closet, Wet Bar
  • Fireplace(s): Gas-Burning, Living Room
  • Flooring: Hardwood, Tile

Rooms

Bathrooms

  • Total Bathrooms: 4
  • Full Bathrooms: 4
  • Bathroom Features: Oversized Tub, Primary - Stall Shower(s), Primary - Tub with Jets, Showers over Tubs (2 or More), Solid Surface, Tile

Bedrooms

  • Total Bedrooms: 5
  • Bedroom Features: Primary Suite / Retreate - 2+, Walk-In Closet

Other Rooms

  • Family Room: Separate Family Room
  • Kitchen: Granite Countertop, Dishwasher, Garbage Disposal, Hood over Range, Gas Oven/Range, Refrigerator
  • Laundry: In Utility Room, Washer / Dryer

Additional Information

  • Extras: Not Applicable
  • Security/Safety: Security Fence

Parking

  • Garage Spaces: 2
  • Parking Features: Detached Garage

Location

  • Area: Mills Estate
  • County: San Mateo
  • Cross Streets: Lake Street

Heating & Cooling

  • Cooling Type: Central AC
  • Heating Type: Central Air (Forced Air)

Utilities

  • Sewer: Public Sewer
  • Water: Public
  • Utility Description: Public Utilities

Structural Information

  • Construction: Detached, Wood Frame
  • Foundation: Concrete Perimeter
  • Roof: Shingle
  • Square Feet: 3,000
  • Year Built: 1956

Lot Features

  • Minimum Lot Size: 10500
  • Lot Size (Sq. Ft.): 10,500
  • Grounds/Landscape: Back Yard, Deck , Dog Run / Kennel, Fenced
  • Zoning: R10006
  • Fencing (Description): Gate, Wood

Green Features

  • Energy Efficient: Double-Pane Windows, Solar Power, Thermostat Controller

Listed by eXp Realty of California Inc, Nestor Icaza

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Listing agent

— 257 S Ashton Ave —

  • Nestor Icaza

    eXp Realty of California Inc

Get Pre-Approved Today

Be ready to buy your new home!

with our affiliated lender
NMLS#: 1598647

Get Pre-Approved

Be ready to buy your new home!

with our affiliated lender
NMLS#: 1598647

Get Pre-Approved

Schools serving 257 S Ashton Ave

School Districts:Millbrae Elementary School District, San Mateo Union High School District
NameGradesDistance
Spring Valley Elementary School, Millbrae, CA
817 Murchison Drive, Millbrae, CA 94030
K-50.1 mi
Taylor Middle School
850 Taylor Boulevard, Millbrae, CA 94030
6-80.8 mi
Mills High School
400 Murchison Drive, Millbrae, CA 94030
9-120.3 mi
Disclaimer: School attendance boundaries provided by Pitney Bowes and are for reference only. Contact the school directly to verify enrollment eligibility.

Price & Sales History for 257 S Ashton Ave Get Price Alerts and Save Property

Date
Details
Price
Change
Source
1/23/2026
Listed
$2,988,000
69.97%
MLS
8/01/2008
Sold
$1,758,000
—
Public Record
Get Price Alerts and Save Property
Disclaimer: Historical sales information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.

Tax History for 257 S Ashton Ave

Year
Property Taxes
Change
Tax Assessment
Change
2024
$18,449
—
$1,570,059
2%
2024
$18,449
2%
$1,539,274
2%
2023
$18,156
9%
$1,509,093
2%
2022
$16,689
1%
$1,479,504
2%
2021
$16,499
2%
$1,450,495
1%
2020
$16,228
-29%
$1,435,623
-29%
2019
$22,733
2%
$2,029,442
2%
2018
$22,280
2%
$1,989,650
2%
2017
$21,852
1%
$1,950,638
2%
2016
$21,578
7%
$1,912,392
8%
2015
$20,200
6%
$1,775,000
6%
2014
$19,001
21%
$1,675,000
20%
2013
$15,704
—
$1,400,000
—
View All
Disclaimer: Historical tax information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.

Estimate the Cost for 257 S Ashton Ave

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*These costs are estimates, and the interest rates assume exceptional credit standing.

Be ready to buy your new home!

with our affiliated lender
NMLS#: 1598647

Get Pre-Approved

Listed by eXp Realty of California Inc, Nestor Icaza

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257 S Ashton Ave, Millbrae, CA 94030 (MLS# ML82032229) is a Single Family property with 5 bedrooms and 4 full bathrooms. 257 S Ashton Ave is currently listed for $2,988,000 and was received on January 23, 2026. Want to learn more about 257 S Ashton Ave? Do you have questions about finding other Single Family real estate for sale in Mills Estates? You can browse all Mills Estates real estate or contact a Coldwell Banker agent to request more information.

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