OFF MARKET

Off Market May 2016 for $5.8M

$7,559,111

Est. refi paymentEst. refi $34,199/mo

•

4,495

sq ft

170 Alamos Rd, Portola Valley, CA 94028

About this home

Best Views Available in Portola Valley From the moment you arrive, this home exudes a Zen ambiance of inspired beauty. Enlivened by the sound of falling water, the entrance opens to breathtaking views of the San Francisco Bay, Stanfords verdant hills, Felt Lake, and the western hills. The homes chic Santa Barbara design presents an organic architecture that integrates the spectacular views into almost every room. The 5 bedroom, 3.5 bath property features an open floor plan spanning 4,495sf, and is situated on almost 5 acres, just off Westridge Road. Generous decks look upon the newly landscaped pool area, and down to the grandeur of all the beauty the Stanford hills have to offer.

Single-familyProperty Type

1973Year Built

4.78 acresLot Size

$1,682Est. Price/Sq.Ft.

2 car garageParking

Listed by Derk Brill •DRE #01256035 • Compass

Contact: 650-543-1117

Bought with Mara McCain •DRE #01077121 • Alain Pinel Realtors

Redfin checked: 2 minutes ago

•Source:MLSListings #ML81584081

Redfin Estimate

$7,559,111

$1.8M since sold in May 2016$133K since August

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 40.1% higher than the average sale price ($5.39M) of 6 comparable homes.

SOLD JUN 3, 2026
$8,400,000
A
5 beds4 baths5,200 sq ft
120 Deer Meadow Ln, Portola Valley, CA 94028
SOLD JUN 2, 2026
$5,950,000
B
4 beds3 baths3,380 sq ft
747 Westridge Dr, Portola Valley, CA 94028
SOLD JUL 13, 2026
$3,500,000
C
5 beds3.5 baths3,354 sq ft
25 Siesta Ct, Portola Valley, CA 94028
SOLD AUG 21, 2026
$5,300,000
D
5 beds3 baths3,350 sq ft
147 Mapache Dr, Portola Valley, CA 94028
SOLD JUN 10, 2026
$5,712,500
E
5 beds4 baths3,718 sq ft
50 Bear Gulch Dr, Portola Valley, CA 94028
SOLD SEP 1, 2026
$3,500,000
F
4 beds3.5 baths3,325 sq ft
918 La Mesa Dr, Portola Valley, CA 94028

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Earn from this home

Sell

$3,551,258

Est. take-home

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Refinance

Est. cash available

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Rent

$3,904/mo

Redfin rental estimate

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Market trends in 94028, CA

Last updated August 2026

Buyer's Market

Seller's Market

Balanced market

Sale-to-List Price

99.2%

0.2% MoM

Median sale price

$5.0M

$748K MoM

Avg. days on market

42d

2 days MoM

Recently sold homes

1 MoM

New listings for sale

OPEN TODAY, 2PM TO 4PM
$4,150,000
5 beds2.5 baths2,660 sq ft
30 Minoca Rd, Portola Valley, CA 94028
OPEN SUN, 2PM TO 4PM
$3,795,000
4 beds3 baths2,290 sq ft
220 Canyon Dr, Portola Valley, CA 94028
OPEN SUN, 1:30PM TO 4:30PM
$7,995,000
5 beds5.5 baths3,690 sq ft
160 Fawn Ln, Portola Valley, CA 94028
OPEN TODAY, 2PM TO 4PM
$6,250,000
5 beds4.5 baths4,100 sq ft
2 Buck Meadow Dr, Portola Valley, CA 94028
EARLY ACCESS
$7,995,000
5 beds4 baths3,425 sq ft
1080 Westridge Dr, Portola Valley, CA 94028
3D WALKTHROUGH
$3,998,000
3 beds4 baths6,155 sq ft
55 Vista Verde Way, Portola Valley, CA 94028
OPEN TODAY, 2PM TO 4PM
$3,498,000
3 beds2 baths2,420 sq ft
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See all

Provided by Redfin

Sale history for 170 Alamos Rd

Year

Property tax

Land + Additions

Assessment*

2025

$75,069 (+1.1%)

$5,644,933 + $1,358,406

$7,003,339

2024

$74,246 (+1.5%)

$5,534,249 + $1,331,771

$6,866,020

2023

$73,156 (+2.8%)

$5,425,735 + $1,305,658

$6,731,393

2022

$71,130 (+1.3%)

$5,319,349 + $1,280,057

$6,599,406

2021

$70,195 (+0.5%)

$5,215,049 + $1,254,958

$6,470,007

2020

$69,873 (+1.1%)

$5,112,794 + $1,230,351

$6,343,145

2019

$69,124 (+5.2%)

$5,060,369 + $1,217,736

$6,278,105

2018

$65,693 (+1.2%)

$4,961,147 + $1,193,859

$6,155,006

2017

$64,919 (+355.7%)

$4,768,500 + $1,147,500

$5,916,000

2016

$14,246 (+0.7%)

$4,768,500 + $1,147,500

$5,916,000

2015

$14,150 (+2.4%)

$614,434 + $645,153

$1,259,587

2014

$13,814 (+3.3%)

$593,350 + $623,016

$1,216,366

2012

$13,372 (+1.8%)

$590,669 + $620,201

$1,210,870

2011

$13,139 (+1.4%)

$579,088 + $608,041

$1,187,129

2010

$12,958 (+1.5%)

$567,734 + $596,119

$1,163,853

2009

$12,764 (+1.8%)

$563,491 + $591,664

$1,155,155

2008

$12,543

$564,830 + $593,070

$1,157,900

Tax history for 170 Alamos Rd

Year

Property tax

Land + Additions

Assessment*

2025

$75,069 (+1.1%)

$5,644,933 + $1,358,406

$7,003,339

2024

$74,246 (+1.5%)

$5,534,249 + $1,331,771

$6,866,020

2023

$73,156 (+2.8%)

$5,425,735 + $1,305,658

$6,731,393

2022

$71,130 (+1.3%)

$5,319,349 + $1,280,057

$6,599,406

2021

$70,195 (+0.5%)

$5,215,049 + $1,254,958

$6,470,007

2020

$69,873 (+1.1%)

$5,112,794 + $1,230,351

$6,343,145

2019

$69,124 (+5.2%)

$5,060,369 + $1,217,736

$6,278,105

2018

$65,693 (+1.2%)

$4,961,147 + $1,193,859

$6,155,006

2017

$64,919 (+355.7%)

$4,768,500 + $1,147,500

$5,916,000

2016

$14,246 (+0.7%)

$4,768,500 + $1,147,500

$5,916,000

2015

$14,150 (+2.4%)

$614,434 + $645,153

$1,259,587

2014

$13,814 (+3.3%)

$593,350 + $623,016

$1,216,366

2012

$13,372 (+1.8%)

$590,669 + $620,201

$1,210,870

2011

$13,139 (+1.4%)

$579,088 + $608,041

$1,187,129

2010

$12,958 (+1.5%)

$567,734 + $596,119

$1,163,853

2009

$12,764 (+1.8%)

$563,491 + $591,664

$1,155,155

2008

$12,543

$564,830 + $593,070

$1,157,900

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

Public record

Beds

Baths

2.5

Stories

Lot width

—

Lot depth

—

Lot size

4.79 Acres

Year renovated

—

Sq. Ft.

4,445

Year built

1973

Style

Single Family Residential

County

San Mateo County

APN

077271120

Parking Spaces

—

Basement

—

Accessible

—

HOA Dues

—

Garage

—

Features

—

Last updated by owner on Sep 2, 2026.

Property details

Parking

Parking Information
Garage (Minimum): 2
Garage (Maximum): 2
Parking Description: Attached Garage, Guest/Visitor Parking, Off-Street Parking, Parking Area, Room for Oversized Vehicle
Garage Spaces: 2

Interior

Virtual Tour

Bedroom Information
# of Bedrooms (Minimum): 5
# of Bedrooms (Maximum): 5

Bathroom Information
# of Baths (Full): 3
# of Baths (1/2): 1
Bathroom Description: Shower and Tub, Skylight, Stall Shower, Stone, Tub

Room Information
Den/Study/Office, Formal Entry, Great Room, Laundry Room
Family Room Description: Kitchen/Family Room Combo
Dining Room Description: Breakfast Bar, Dining Area, Eat in Kitchen, Formal Dining Room, Skylight(s)
Kitchen Description: Cooktop (Gas), Countertop (Ceramic), Countertop (Tile), Dishwasher, Freezer, Hookups (Gas), Island, Microwave, Oven (Built-In), Oven (Double), Oven (Self Cleaning), Pantry, Refrigerator(s)

Interior Features
Laundry: Hookup (Washer/Dryer)
Flooring: Carpet, Slate, Stone, Tile

Fireplace Information
Has Fireplace
Fireplace Description: Wood-Burning
Fireplaces (Minimum): 2

Heating & Cooling Information
Cooling: Central Forced Air
Heating: Central Forced Air (Gas)

Exterior

Exterior Features
View: City Lights, Forest/Woods, Hills, Lake, Mountains, Panoramic, Ridge, Special
Roof: Tile
Yard/Grounds: Balcony/Patio, Barbecue Area, Deck, Sprinkler(s) (Auto)

Building Information
Style: Other (See Remarks)
Subclass: Single Family Home
Building Type: Detached
Concrete Perimeter and Slab

Pool Information
Has Pool
Pool Description: In-Ground, Spa/Hot Tub

Property Features
Amenities: High Ceiling, Open Beam Ceiling, Skylight(s), Vaulted Ceiling, Video/Audio System, Walk-In Closet, Wet Bar
Living Sq. Ft.: 4,495
Security Features: Security Alarm

Property Information
Horse Property: Possible
Property Primary ID: 560128

Lot Information
Lot Acres: 4.78
Lot Size Area Minimum Units: Sq. Ft.
Lot Size Area Maximum Units: Sq. Ft.
Lot Size Source: Other (See Remarks)
Zoning: R1002A

Utilities

Utility Information
Energy Features: Skylight(s)
Sewer Septic: Septic Connected
Utilities: Public Utilities

Water Information
Water: Public

Location

Multi-Unit Information
# of Stories: 1

School Information
Elementary School: Ormondale Elementary
Elementary School District: Portola Valley Elementary
Middle School: Corte Madera Elementary
High School District: Sequoia Union High

Public facts

Beds: 5
Baths: 2.5
Sq. Ft.: 4,445
Stories: 1.0
Lot Size: 4.79 acres
Style: Single Family Residential
Year Built: 1973
Year Renovated: —
County: San Mateo County
APN: 077271120

Home facts updated by county records on Sep 2, 2026

Around this home

Schools

Ormondale Elementary School

Public K-3 • Assigned • 1.5mi

10/10

Corte Madera School

Public 4-8 • Assigned • 1.9mi

10/10

Woodside High School

Public 9-12 • Assigned • 4.1mi

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

3/10 Heat Factor

6 days above 94° expected this year, 11 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

$7.18M – $8.69M

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Home values near 170 Alamos Rd

Data from public records.

Address	Redfin Estimate
331 Alamos Rd, Portola Valley, CA 4 Beds \| 2.5 Baths \| 2860 Sq. Ft.	$4,817,934
300 Alamos Rd, Portola Valley, CA 3 Beds \| 3.5 Baths \| 2552 Sq. Ft.	$6,772,021

Address	Redfin Estimate
100 Alamos Rd, Portola Valley, CA 4 Beds \| 3.5 Baths \| 4200 Sq. Ft.	$5,798,415
330 Alamos Rd, Portola Valley, CA 5 Beds \| 3 Baths \| 1880 Sq. Ft.	$4,622,229

Address	Redfin Estimate
150 Alamos Rd, Portola Valley, CA 4 Beds \| 3.5 Baths \| 8333 Sq. Ft.	$15,390,068
340 Alamos Rd, Portola Valley, CA 4 Beds \| 2.5 Baths \| 2290 Sq. Ft.	$5,107,812

Property information provided by MLSListings when last listed in 2016. 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 94028, CA

Sale history for 170 Alamos Rd

Tax history for 170 Alamos Rd

Public record

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 170 Alamos Rd

More real estate resources