OFF MARKET

Off Market Nov 2011 for $4.8M

$13,923,695

Est. refi paymentEst. refi $29,986/mo

•

5,700

sq ft

18 RALSTON Rd, Atherton, CA 94027

About this home

Single-familyProperty Type

1999Year Built

0.92 acresLot Size

$2,443Est. Price/Sq.Ft.

2 car garageParking

Listed by Mary Mary & Brent Gullixson •DRE #70001879 • Alain Pinel Realtors

Contact: (650) 888-0860

Bought with Julie Lau •DRE #01052924 • Coldwell Banker Realty

Redfin checked: a minute ago

•Source:MLSListings #ML81142111

Redfin Estimate

$13,923,695

$9.1M since sold in November 2011$472K since July

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 120.7% higher than the average sale price ($6.31M) of 6 comparable homes.

SOLD JUL 31, 2026
$12,250,000
A
3 beds3 baths2,040 sq ft
399 Selby Ln, Atherton, CA 94027
SOLD APR 22, 2026
$4,000,000
B
4 beds3.5 baths3,045 sq ft
250 Selby Ln, Atherton, CA 94027
BOUGHT WITH REDFIN MAY 12, 2026
$5,450,000
C
4 beds4.5 baths3,600 sq ft
17 Almendral Ave, Atherton, CA 94027
SOLD MAY 6, 2026
$3,650,000
D
4 beds3.5 baths3,230 sq ft
4 Beresford Ct, Redwood City, CA 94061
SOLD APR 17, 2026
$9,500,000
E
6 beds4 baths3,455 sq ft
243 Selby Ln, Atherton, CA 94027
SOLD JUN 12, 2026
$3,000,000
F
4 beds4.5 baths2,950 sq ft
36 Gretel Ct, Redwood City, CA 94061

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Earn from this home

Sell

$10,673,701

Est. take-home

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Refinance

Est. cash available

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Rent

$10,897/mo

Redfin rental estimate

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Market trends in 94027, CA

Last updated July 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-List Price

101.5%

+0.4% MoM

Median sale price

$10.0M

$252K MoM

Avg. days on market

20d

3 days MoM

Recently sold homes

2 MoM

New listings for sale

NEW 6 HRS AGO
$5,699,000
4 beds3 baths2,700 sq ft
61 Lloyden Dr, Atherton, CA 94027
NEW 35 HRS AGO
$14,800,000
5 beds5.5 baths6,490 sq ft
49 Atherton Ave, Atherton, CA 94027
$9,888,070
4 beds4.5 baths5,615 sq ft
27 Valley Rd, Atherton, CA 94027
See all

Provided by Redfin

Sale history for 18 RALSTON Rd

Year

Property tax

Land + Additions

Assessment*

2025

$83,507 (+1.2%)

$3,045,934 + $4,478,824

$7,524,758

2024

$82,546 (+1.6%)

$3,045,934 + $4,478,824

$7,524,758

2023

$81,263 (+5.0%)

$2,986,210 + $4,391,005

$7,377,215

2022

$77,427 (+1.0%)

$2,927,657 + $4,304,907

$7,232,564

2021

$76,649 (+1.4%)

$2,870,252 + $4,220,498

$7,090,750

2020

$75,597 (+0.4%)

$2,813,973 + $4,137,744

$6,951,717

2019

$75,305 (+2.7%)

$2,785,120 + $4,095,318

$6,880,438

2018

$73,332 (+0.3%)

$2,730,510 + $4,015,018

$6,745,528

2017

$73,122 (+25.2%)

$2,624,482 + $3,859,112

$6,483,594

2016

$58,406 (+4.7%)

$2,624,482 + $3,859,112

$6,483,594

2015

$55,777 (+8.2%)

$2,573,022 + $2,555,036

$5,128,058

2014

$51,558 (−4.1%)

$2,484,729 + $2,137,000

$4,621,729

2012

$53,782 (+184.3%)

$2,473,500 + $2,473,500

$4,947,000

2011

$18,919 (+1.9%)

$2,425,000 + $2,425,000

$4,850,000

2010

$18,567 (+0.6%)

$616,201 + $1,015,637

$1,631,838

2009

$18,463 (+2.1%)

$611,596 + $1,008,047

$1,619,643

2008

$18,090

$613,049 + $1,010,442

$1,623,491

Tax history for 18 RALSTON Rd

Year

Property tax

Land + Additions

Assessment*

2025

$83,507 (+1.2%)

$3,045,934 + $4,478,824

$7,524,758

2024

$82,546 (+1.6%)

$3,045,934 + $4,478,824

$7,524,758

2023

$81,263 (+5.0%)

$2,986,210 + $4,391,005

$7,377,215

2022

$77,427 (+1.0%)

$2,927,657 + $4,304,907

$7,232,564

2021

$76,649 (+1.4%)

$2,870,252 + $4,220,498

$7,090,750

2020

$75,597 (+0.4%)

$2,813,973 + $4,137,744

$6,951,717

2019

$75,305 (+2.7%)

$2,785,120 + $4,095,318

$6,880,438

2018

$73,332 (+0.3%)

$2,730,510 + $4,015,018

$6,745,528

2017

$73,122 (+25.2%)

$2,624,482 + $3,859,112

$6,483,594

2016

$58,406 (+4.7%)

$2,624,482 + $3,859,112

$6,483,594

2015

$55,777 (+8.2%)

$2,573,022 + $2,555,036

$5,128,058

2014

$51,558 (−4.1%)

$2,484,729 + $2,137,000

$4,621,729

2012

$53,782 (+184.3%)

$2,473,500 + $2,473,500

$4,947,000

2011

$18,919 (+1.9%)

$2,425,000 + $2,425,000

$4,850,000

2010

$18,567 (+0.6%)

$616,201 + $1,015,637

$1,631,838

2009

$18,463 (+2.1%)

$611,596 + $1,008,047

$1,619,643

2008

$18,090

$613,049 + $1,010,442

$1,623,491

*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.

Public record

Public record
Zoning
Permits

Beds

Baths

8.5

Stories

Lot width

—

Lot depth

—

Lot size

0.92 Acres

Year renovated

2011

Sq. Ft.

9,622

Year built

1999

Style

Single Family Residential

County

San Mateo County

APN

059292070

Parking Spaces

—

Basement

—

Accessible

—

HOA Dues

—

Garage

—

Features

—

Last updated by owner on Jul 15, 2026.

R-1A

Residential District

This chapter identifies the allowed use and permit requirements and development standards for the residential district R-1A. The intent of this district is to implement the residential land use categories of the town’s general plan. It is designed to designate land for the development of residential uses consistent with the development regulations set forth in this title.

Permitted uses

Include but are not limited to:

Housing
Housing-Single unit

Property details

Parking

Parking Information
Garage (Minimum): 2
Garage (Maximum): 2
Parking Description: Detached, Gate/Door Opener, Guest/Visitor Parking, Off-Street Parking
Garage Spaces: 2

Interior

Virtual Tour

Bedroom Information
# of Bedrooms (Minimum): 3
# of Bedrooms (Maximum): 3
Bedrooms: Primary Suite/Retreat, Ground Floor Bedroom

Bathroom Information
# of Baths (Full): 4
# of Baths (1/2): 1
# of Baths (Minimum): 5
# of Baths (Maximum): 5
Bathroom Description: 2+ Showers Over Tubs, 2+ Tubs, Stall Shower, Tub in Master Bedroom, Tub w/Jets

Room Information
Workshop, Den/Study/Office, Formal Entry, Guest House, Storage
Family Room Description: Separate Family Room
Dining Room Description: Formal Dining Room, Breakfast Nook, Breakfast Bar, Eat in Kitchen
Kitchen Description: Cooktop, Garbage Disposal, 2+ Dishwashers, Microwave, 2+ Ovens, 2+ Refrigerators, Oven (Built-In), 220 Volt Outlet, Hookups (Gas)
Guest House

Interior Features
Laundry: In Laundry Room, Dryer, Washer, Hookup (Gas Dryer), 220 Volt Outlet
Flooring: Hardwood (Partial), Carpet (Wall-to-Wall), Marble

Fireplace Information
Fireplace Description: In Family Room, In Living Room, In Primary Bedroom, In Other Location, Wood-Burning, Gas Starter, Fireplace Available

Heating & Cooling Information
Cooling: Central Forced Air
Heating: Heating (2+ Zones), Radiant, Forced Air

Exterior

Exterior Features
View: Local/Neighborhood
Roof: Wood Shakes/Shingles, Shake, Other (See Remarks)
Yard/Grounds: Gazebo, Patio(s), Sprinkler(s) (Front), Sprinkler(s) (Rear), Sprinkler(s) (Auto), Barbecue Area, Fenced

Building Information
Style: Tudor
Subclass: Single Family Home
Building Type: Detached
Exterior: Stone, Stucco
Concrete Perimeter
Building Height (Minimum): 2
Building Height (Maximum): 2

Property Features
Amenities: Window Covering(s), Double Pane Windows(s), High Ceiling, Wet Bar, Vacuum (Central)
Communication: Satellite Dish, TV Antenna, Cable TV Available
Living Sq. Ft.: 5,700
Security Features: Security Alarm (Owned)

Property Information
Level (Street/Main): Bedroom(s)
Property Primary ID: 97705

Lot Information
Lot Description: Grade (Level)
Lot Size Area Minimum Units: Sq. Ft.
Lot Size Area Maximum Units: Sq. Ft.
Lot Size Source: Assessor
Zoning: R100

Utilities

Utility Information
Energy Features: Double Pane Windows, Skylight(s)
Sewer Septic: Sewer in Street, Sewer Connected

Water Information
Water: Heater (Gas), Public

Location

Multi-Unit Information
# of Stories: 2

School Information
Elementary School District: Redwood City Elementary
High School District: Sequoia Union High

Public facts

Beds: 5
Baths: 8.5
Sq. Ft.: 9,622
Stories: 2.0
Lot Size: 0.92 acres
Style: Single Family Residential
Year Built: 1999
Year Renovated: 2011
County: San Mateo County
APN: 059292070

Home facts updated by county records on Jul 15, 2026

Other

Miscellaneous Information
Incorporated: Yes

Around this home

Schools
Places
Transit

Garfield Elementary School

Public K-5 • Assigned • 1.0mi

6/10

Menlo-Atherton High School

Public 9-12 • Assigned • 2.1mi

8/10

Provided by GreatSchools

Lifestyle

Provided by Walk Score and Local Logic

Climate risks

1/10 Flood Factor

Minimal risk of a flood reaching the building in the next 30 years

1/10 Fire Factor

Unlikely to be in a wildfire in next 30 years

3/10 Heat Factor

7 days above 91° expected this year, 14 days in 30 years

1/10 Wind Factor

Minimal risk of severe winds over next 30 years

8/10 Air Factor

16 unhealthy days expected this year, 16 days in 30 years

Provided by First Street

Historical weather

Atherton, CA • 94027

Average low and high temperatures (°F)

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Sun exposure

In this area, properties receive around 10.7 hours in June and 5 hours in December, placing it above the U.S. average for solar exposure.

10.7 hrs

5 hrs

JuneDecember

Provided by Shadowmap

Estimated sale price

$13.23M – $16.01M

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Nearby similar homes

NEW 6 HRS AGO3D WALKTHROUGH

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NEW 27 HRS AGO

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New listings for sale in 94027

NEW 6 HRS AGO3D WALKTHROUGH

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NEW 35 HRS AGO

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5 beds5.5 baths6,490 sq ft

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4 beds4.5 baths5,615 sq ft

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Home values near 18 RALSTON Rd

Data from public records.

Address	Redfin Estimate
101 Ralston Road, Atherton, CA 5 Beds \| 4 Baths \| 5190 Sq. Ft.	$14,667,770
47 Ralston Road, Atherton, CA 4 Beds \| 4 Baths \| 4500 Sq. Ft.	$11,839,356

Address	Redfin Estimate
36 Ralston Road, Atherton, CA 5 Beds \| 6.5 Baths \| 7926 Sq. Ft.	$21,602,126
23 Ralston Road, Atherton, CA 4 Beds \| 4 Baths \| 2990 Sq. Ft.	$8,132,911

Address	Redfin Estimate
35 Ralston Road, Atherton, CA 6 Beds \| 8 Baths \| 10647 Sq. Ft.	$17,554,661
72 Ralston Road, Atherton, CA 6 Beds \| 8.5 Baths \| 9345 Sq. Ft.	$18,531,451

Property information provided by MLSListings when last listed in 2011. This data may not match . Learn more.

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GreatSchools Ratings provided by GreatSchools.org.

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About this home

Redfin Estimate

Earn from this home

Market trends in 94027, CA

Sale history for 18 RALSTON Rd

Tax history for 18 RALSTON Rd

Public record

Property details

Around this home

Lifestyle

Climate risks

Historical weather

Sun exposure

Nearby similar homes

New listings for sale in 94027

Home values near 18 RALSTON Rd

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