Google street view image for 4320 Alpine Rd, Portola Valley, CA 94028

Off market mar 1984 for $305K

$3,766,167

Est. refi paymentEst. refi $2,082/mo

•

3 ba

•

3,160

sq ft

4320 Alpine Rd, Portola Valley, CA 94028

About this home

4320 Alpine Rd is a 3,160 square foot house on a 1.03 acre lot with 4 bedrooms and 3 bathrooms. - it last sold on March 09, 1984 for $305,000. Based on Redfin's Portola Valley data, we estimate the home's value is $3,766,167.

Single-familyProperty Type

1982Year Built

1.03 acresLot Size

$1,192Est. Price/Sq.Ft.

Source:Public Records

Redfin Estimate

$3,766,167

$3.5M since sold in March 1984$413K since September

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 24.8% lower than the average sale price ($5.01M) of 5 comparable homes.

SOLD MAY 21, 2026
$3,262,000
A
4 beds3.5 baths3,470 sq ft
21 Valley Oak St, Portola Valley, CA 94028
SOLD APR 15, 2026
$5,005,000
B
4 beds3.5 baths3,110 sq ft
8 Hawkview St, Portola Valley, CA 94028
SOLD SEP 16, 2026
$6,750,000
C
4 beds3.5 baths3,701 sq ft
13415 Country Way, Los Altos Hills, CA 94022
SOLD JUL 2, 2026
$4,960,000
D
4 beds3 baths2,749 sq ft
27500 Elena Rd, Los Altos Hills, CA 94022
SOLD APR 2, 2026
$5,050,000
E
4 beds3 baths3,363 sq ft
3089 Country Club Ct, Palo Alto, CA 94304

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Earn from this home

Sell

$3,567,443

Est. take-home

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Refinance

Est. cash available

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Rent

$4,577/mo

Redfin rental estimate

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Market trends in 94028, CA

Last updated September 2026

Buyer's Market

Seller's Market

Balanced market

Sale-to-List Price

98.4%

0.6% MoM

Median sale price

$5.4M

$473K MoM

Avg. days on market

42d

0 days MoM

Recently sold homes

6 MoM

New listings for sale

EARLY ACCESS
$4,295,000
4 beds2 baths2,150 sq ft
980 La Mesa Dr, Portola Valley, CA 94028
EARLY ACCESS
$4,850,000
4 beds4 baths3,511 sq ft
369 Ramona Rd, Portola Valley, CA 94028
3D WALKTHROUGH
$2,950,000
3 beds2 baths1,790 sq ft
251 Dedalera Dr, Portola Valley, CA 94028
3D & VIDEO TOUR
$4,995,000
4 beds3 baths3,770 sq ft
12 Hawkview St, Portola Valley, CA 94028
$4,999,999
5 beds3.5 baths5,040 sq ft
10 Joaquin Rd, Portola Valley, CA 94028
See all

Provided by Redfin

Sale history for 4320 Alpine Rd

Year

Property tax

Land + Additions

Assessment*

2025

$10,353 (+1.6%)

$322,258 + $474,724

$796,982

2024

$10,190 (+1.9%)

$315,940 + $465,416

$781,356

2023

$10,000 (+2.6%)

$309,746 + $456,291

$766,037

2022

$9,744 (+1.4%)

$303,673 + $447,345

$751,018

2021

$9,612 (−0.3%)

$297,719 + $438,574

$736,293

2020

$9,642 (+1.4%)

$291,882 + $429,975

$721,857

2019

$9,509 (+4.8%)

$288,890 + $425,567

$714,457

2018

$9,069 (+1.6%)

$283,226 + $417,223

$700,449

2017

$8,927 (+2.1%)

$272,229 + $401,023

$673,252

2016

$8,745 (+1.3%)

$272,229 + $401,023

$673,252

2015

$8,637 (+3.1%)

$266,892 + $393,160

$660,052

2014

$8,381 (+5.2%)

$257,735 + $379,670

$637,405

2012

$7,966 (+2.4%)

$256,571 + $377,955

$634,526

2011

$7,782 (+1.8%)

$251,541 + $370,545

$622,086

2010

$7,647 (+3.9%)

$246,609 + $363,280

$609,889

2009

$7,360 (+3.9%)

$244,766 + $360,565

$605,331

2008

$7,084

$245,348 + $361,422

$606,770

Tax history for 4320 Alpine Rd

Year

Property tax

Land + Additions

Assessment*

2025

$10,353 (+1.6%)

$322,258 + $474,724

$796,982

2024

$10,190 (+1.9%)

$315,940 + $465,416

$781,356

2023

$10,000 (+2.6%)

$309,746 + $456,291

$766,037

2022

$9,744 (+1.4%)

$303,673 + $447,345

$751,018

2021

$9,612 (−0.3%)

$297,719 + $438,574

$736,293

2020

$9,642 (+1.4%)

$291,882 + $429,975

$721,857

2019

$9,509 (+4.8%)

$288,890 + $425,567

$714,457

2018

$9,069 (+1.6%)

$283,226 + $417,223

$700,449

2017

$8,927 (+2.1%)

$272,229 + $401,023

$673,252

2016

$8,745 (+1.3%)

$272,229 + $401,023

$673,252

2015

$8,637 (+3.1%)

$266,892 + $393,160

$660,052

2014

$8,381 (+5.2%)

$257,735 + $379,670

$637,405

2012

$7,966 (+2.4%)

$256,571 + $377,955

$634,526

2011

$7,782 (+1.8%)

$251,541 + $370,545

$622,086

2010

$7,647 (+3.9%)

$246,609 + $363,280

$609,889

2009

$7,360 (+3.9%)

$244,766 + $360,565

$605,331

2008

$7,084

$245,348 + $361,422

$606,770

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

Property details

Interior

Basement Information
Basement Sq. Ft: 530
Basement Type: Unfinished

Bathroom Information
# of Full Baths: 3

Heating & Cooling
Air Conditioning Type: Central
Heating Type: Central

Room Information
# of Rooms: 10

Exterior

Exterior Information
Construction Type: Wood/Steel
Building Construction Quality: Good

Pool Information
Has Pool

View Information
View: Good

Property Information
Subdivision Name: PORTOLA TERRACE
Living Sq. Ft: 3,160
Gross Sq. Ft: 3,690
Ground Floor Sq. Ft: 3,160
Building Sq. Ft: 3,690
# of Stories: 1
Legal Description: PARCEL 3 1.027 AC MOL PARCEL MAP VOL 40/34-35

Parking & Garage Information
# of Parking Spaces: 2
Parking Type: Basement Garage
Garage/Parking Sq. Ft: 530
Garage / Carport Type: Basement

Lot Information
# of Buildings: 1
Land Sq. Ft: 44,764
Legal Lot Number: 14
Acres: 1.0276
Zoning Code: R1001A
County Use Description: SINGLE FAMILY

Financial

Assessor Information
Assessment Year: 2026

Public facts

Beds: 4
Baths: 3.0
Sq. Ft.: 3,160
Stories: 1.0
Lot Size: 1.03 acres
Style: Single Family Residential
Year Built: 1982
Year Renovated: 1985
County: San Mateo County
APN: 079073250

Home facts updated by county records on Sep 2, 2026

Around this home

Schools

Corte Madera School

Public 4-8 • Assigned • 0.6mi

10/10

Woodside High School

Public 9-12 • Assigned • 5.1mi

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

3/10 Fire Factor

0.31% chance of being in a wildfire in next 30 years

2/10 Heat Factor

7 days above 94° expected this year, 14 days in 30 years

1/10 Wind Factor

Minimal risk of severe winds over next 30 years

7/10 Air Factor

12 unhealthy days expected this year, 12 days in 30 years

Provided by First Street

Historical weather

Portola Valley, CA • 94028

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

$3.58M – $4.33M

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Home values near 4320 Alpine Rd

Data from public records.

Address	Redfin Estimate
4330 Alpine Road, Portola Valley, CA 2 Beds \| 3 Baths \| 3056 Sq. Ft.	$3,276,264
120 Nathhorst Avenue, Portola Valley, CA 3 Beds \| 2 Baths \| 1810 Sq. Ft.	$3,477,793

Address	Redfin Estimate
27 Hillbrook Drive, Portola Valley, CA 4 Beds \| 4.5 Baths \| 4840 Sq. Ft.	$6,304,029
3 Hillbrook Drive, Portola Valley, CA 4 Beds \| 3 Baths \| 3330 Sq. Ft.	$4,360,634

Address	Redfin Estimate
15 Hillbrook Drive, Portola Valley, CA 3 Beds \| 1 Baths \| 1480 Sq. Ft.	$3,025,431
3 Applewood Lane, Portola Valley, CA 4 Beds \| 4.5 Baths \| 3800 Sq. Ft.	$5,461,874

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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 94028, CA

Sale history for 4320 Alpine Rd

Tax history for 4320 Alpine Rd

Property details

Around this home

Schools

Lifestyle

Climate risks

Historical weather

Sun exposure

Nearby similar homes

New listings for sale in 94028

Home values near 4320 Alpine Rd

More real estate resources