3510 Alpine Rd, Portola Valley, CA 94028

Sold on Jul 2026

$10,850,000

•

6,593

sq ft

3510 Alpine Rd, Portola Valley, CA 94028

Track this home’s value and nearby sales activity

About this home

TRI-LEVEL ESTATE OFFERS POOL HOUSE, 3+ ACRES | Transport yourself to the East Coast in this incomparable custom estate. Gated acreage framed by California oaks reveals an exquisite Shingle-style home surrounded by bridges, enchanting gardens, a three-car garage, and fully functional pool house with pool and spa. Faced by a circular gravel drive, the tri-level main residence built in 2010 has been wonderfully maintained, boasting all ensuite bedrooms, a study, gym, and media lounge with full bar. Enjoy a sensational master chefs kitchen, ultra-luxurious primary suite, multiple fireplaces, surround sound, and ground-level guest/au pair quarters. Superb details include graceful turrets, round windows, soaring ceilings, gorgeous hardwood floors, and extensive millwork throughout. Outdoor retreats abound with amenities like a barbecue island, fireplace, paver terraces, wisteria-laden pergola, raised beds, and more. Moments from shopping, dining, trails, and breathtaking scenery, this piece of bucolic paradise is nestled near tech and venture capital centers, and only ~ 30 minutes from SFO and SJC. Excellent Portola Valley Schools. Property is on sewer giving a buyer full use of the lot. Main residence 5861 sq ft, guest house 732 sq ft=6593 sq ft Plus 888 sq ft garage.

Single-familyProperty Type

2010Year Built

3.07 acresLot Size

$1,646Price/Sq.Ft.

$10/moHOA Dues

3 car garageParking

Listed by Sue Crawford •DRE #00587710 • Coldwell Banker Realty

Contact: 650-207-8444

Bought with Hope Pilch •DRE #01252438 • HP Properties

Redfin checked: a minute ago

•Source:MLSListings #ML82038785

Redfin Estimate

$10,306,947

$543K since sold in July 2026$21K since August

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 10.1% higher than the average sale price ($9.36M) of 5 comparable homes.

SOLD AUG 4, 2026
$20,500,000
A
5 beds9 baths8,715 sq ft
479 Westridge Dr, Portola Valley, CA 94028
SOLD MAY 18, 2026
$5,300,000
B
4 beds3.5 baths5,412 sq ft
27994 Via Ventana Way, Los Altos Hills, CA 94022
SOLD JUL 15, 2026
$6,100,000
C
4 beds5 baths3,400 sq ft
350 Willowbrook Rd, Portola Valley, CA 94028
SOLD JUN 3, 2026
$8,400,000
D
5 beds4 baths5,200 sq ft
120 Deer Meadow Ln, Portola Valley, CA 94028
SOLD APR 24, 2026
$6,500,000
E
4 beds4 baths3,869 sq ft
13918 Mir Mirou Dr, Los Altos, CA 94022

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Market trends in 94028, CA

Last updated August 2026

Buyer's Market

Seller's Market

Seller's 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
$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 baths3,614 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
45 Bear Paw, Portola Valley, CA 94028
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Rental estimate

Est. $4,786 per month, based on comparable rentals

Sale and tax history for 3510 Alpine Rd

Sale History
Tax History

Date

Event

Price

bridgeMLS, Bay East AOR, or Contra Costa AOR #ML82038785

Jul 30, 2026

Sold

$10,850,000

$1,646/sq ft

Jul 30, 2026

Sold

$10,850,000

$1,646/sq ft

Jun 29, 2026

Pending

—

Jun 22, 2026

Pending

—

Jun 22, 2026

Contingent

—

Apr 16, 2026

Price Changed

$11,650,000

$1,767/sq ft

Apr 16, 2026

Price Changed

$11,650,000

$1,767/sq ft

Mar 16, 2026

Listed

$12,650,000

$1,919/sq ft

Mar 16, 2026

Listed

$12,650,000

$1,919/sq ft

bridgeMLS, Bay East AOR, or Contra Costa AOR #ML80631021

Aug 8, 2006

Sold

$2,400,000

$364/sq ft

Aug 8, 2006

Listing Removed

—

Jul 7, 2006

Sold

$2,400,000

$364/sq ft

May 18, 2006

Listed

$2,475,000

$375/sq ft

May 18, 2006

Listed

$2,475,000

$375/sq ft

MLSListings #ML80626366

Aug 8, 2006

Sold

$2,400,000

$364/sq ft

Aug 8, 2006

Sold

$2,400,000

$364/sq ft

Jul 7, 2006

Listing Removed

—

Jun 25, 2006

Price Changed

$2,475,000

$375/sq ft

May 8, 2006

Listed

$2,695,000

$409/sq ft

May 8, 2006

Listed

$2,475,000

$375/sq ft

Year

Property tax

Land + Additions

Assessment*

2025

$69,602 (+1.1%)

$3,211,474 + $3,278,430

$6,489,904

2024

$68,840 (+1.5%)

$3,148,504 + $3,214,148

$6,362,652

2023

$67,830 (+2.8%)

$3,086,769 + $3,151,126

$6,237,895

2022

$65,952 (+1.3%)

$3,026,245 + $3,089,340

$6,115,585

2021

$65,086 (+0.4%)

$2,966,907 + $3,028,765

$5,995,672

2020

$64,795 (+1.1%)

$2,908,733 + $2,969,378

$5,878,111

2019

$64,101 (+5.2%)

$2,878,908 + $2,938,931

$5,817,839

2018

$60,922 (+1.2%)

$2,822,459 + $2,881,305

$5,703,764

2017

$60,205 (+1.8%)

$2,712,860 + $2,769,421

$5,482,281

2016

$59,153 (+0.7%)

$2,712,860 + $2,769,421

$5,482,281

2015

$58,750 (+2.5%)

$2,659,667 + $2,715,119

$5,374,786

2014

$57,315 (+13.2%)

$2,568,401 + $2,621,950

$5,190,351

2012

$50,642 (−0.2%)

$2,556,794 + $2,610,101

$5,166,895

2011

$50,725 (+22.0%)

$2,204,500 + $2,395,500

$4,600,000

2010

$41,589 (+4.6%)

$2,457,511 + $2,669,954

$5,127,465

2009

$39,754 (+32.6%)

$2,439,145 + $1,350,000

$3,789,145

2008

$29,989

$2,444,940 + $1,200,000

$3,644,940

Public record

Beds

Baths

5.5

Stories

Lot width

—

Lot depth

—

Lot size

3.07 Acres

Year renovated

2010

Sq. Ft.

5,433

Year built

2010

Style

Single Family Residential

County

San Mateo County

APN

077273060

Parking Spaces

—

Basement

—

Accessible

—

HOA Dues

—

Garage

—

Features

—

Last updated by owner on Sep 3, 2026.

Property details

Parking

Parking Information
Garage (Minimum): 3
Garage (Maximum): 3
Parking Description: Detached, Electric Car Hookup, Electric Gate, Off-Site Parking, Room for Oversized Vehicle
Electric Vehicle Hookup Type: Electric Vehicle Hookup Level 2 (240 volts)
Garage Spaces: 3

Interior

Virtual Tour

Bedroom Information
# of Bedrooms (Minimum): 4
# of Bedrooms (Maximum): 4
Bedrooms: Ground Floor Bedroom, Walk-In Closet

Bathroom Information
# of Baths (Full): 6
# of Baths (1/2): 1
Bathroom Description: Double Sinks, Full on Ground Floor, Half on Ground Floor, Marble, Primary (Stall Shower(s)), Shower Over Tub, Skylight, 2+ Stall Shower, Tub in Master Bedroom, 2+ Tubs

Room Information
Attic, Basement (Finished), Den/Study/Office, Formal Entry, Laundry Room, Media/Home Theatre, Mud Room, Office Area, Workshop
Family Room Description: Kitchen/Family Room Combo
Dining Room Description: Dining Bar, Eat in Kitchen, Formal Dining Room
Kitchen Description: Countertop (Marble), Dishwasher, Garbage Disposal, Hood Over Range, Hookups (Ice Maker), Island, Island with Sink, Microwave, Oven (Double), Oven (Self Cleaning), Oven Range (Built-In, Gas), Pantry, Refrigerator(s), Warming Drawer, Wine Refrigerator
Guest House

Interior Features
Laundry: In Utility Room, Inside, Tub/Sink, Upper Floor
Flooring: Concrete, Hardwood, Marble, Stone, Tile

Fireplace Information
Has Fireplace
Fireplace Description: In Family Room, In Living Room, Outside, In Primary Bedroom
Fireplaces (Minimum): 4

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

Exterior

Exterior Features
Fencing: Fenced, Gate, Wood
Roof: Wood Shakes/Shingles
Yard/Grounds: Backyard, Balcony/Patio, Barbecue Area, Fenced, Outdoor Fireplace, Outdoor Kitchen

Building Information
Subclass: Single Family Home
Building Type: Detached
Concrete Perimeter

Pool Information
Has Pool
Pool Description: Cover, Heated, In-Ground, Spa - Gunite

Property Features
Amenities: Vacuum (Central), High Ceiling, Security Gate, Skylight(s), Vaulted Ceiling, Walk-In Closet, Wet Bar
Living Sq. Ft.: 6,593

Property Information
Horse Property: Possible
Property Primary ID: 127210
Restrictions: Board Approval

Lot Information
Lot Acres: 3
Lot Description: Grade (Level), Grade (Mostly Level), Private/Secluded
Lot Size Area Minimum Units: Sq. Ft.
Lot Size Area Maximum Units: Sq. Ft.
Lot Size Source: Assessor
Zoning: R1002A

Financial

Tax/Assessment Information
City Transfer Tax: No

Utilities

Utility Information
Energy Features: Double Pane Windows, Skylight(s), Solar Power
Sewer Septic: Sewer (Public)
Utilities: Public Utilities

Water Information
Water: Public

Location

Multi-Unit Information
# of Stories: 3

HOA Information
Has HOA
HOA Fee: $120
HOA Fee Frequency: Annually
HOA Name: Westridge

School Information
Elementary School District: Portola Valley Elementary
High School District: Sequoia Union High

Public facts

Beds: 4
Baths: 5.5
Sq. Ft.: 5,433
Stories: 2.0
Lot Size: 3.07 acres
Style: Single Family Residential
Year Built: 2010
Year Renovated: 2010
County: San Mateo County
APN: 077273060

Home facts updated by county records on Sep 3, 2026

Other

Miscellaneous Information
Incorporated: No

Around this home

Schools

Ormondale Elementary School

Public K-3 • Assigned • 1.6mi

10/10

Corte Madera School

Public 4-8 • Assigned • 1.9mi

10/10

Woodside High School

Public 9-12 • Assigned • 4.4mi

8/10

Provided by GreatSchools

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, 12 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

80/ 100

Very good sunlight

Sunscore

This home receives average direct sun exposure in the zip code. There appears to be minimal shading by surrounding buildings, terrain, and vegetation.

8.4 hrs

4.8 hrs

JuneDecember

Provided by Shadowmap

Estimated sale price

$9.79M – $11.85M

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Home values near 3510 Alpine Rd

Data from public records.

Address	Redfin Estimate
3350 Alpine Rd, Portola Valley, CA 3 Beds \| 2 Baths \| 2080 Sq. Ft.	$4,865,635
121 Ash Ln, Portola Valley, CA 2 Beds \| 4.5 Baths \| 6122 Sq. Ft.	$24,860,021

Address	Redfin Estimate
3338 Alpine Rd, Portola Valley, CA 3 Beds \| 2 Baths \| 2254 Sq. Ft.	$4,488,160
228 Westridge Dr, Portola Valley, CA 5 Beds \| 3.5 Baths \| 2790 Sq. Ft.	$6,498,429

Address	Redfin Estimate
3343 Alpine Rd, Portola Valley, CA 6 Beds \| 6 Baths \| 6800 Sq. Ft.	—
157 Westridge Dr, Portola Valley, CA 4 Beds \| 3.5 Baths \| 4380 Sq. Ft.	$5,388,604

Property information provided by MLSListings when last listed in 2026. This data may not match . Learn more.

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About this home

Redfin Estimate

Market trends in 94028, CA

Homeowner tools

Sale and tax history for 3510 Alpine Rd

Public record

Property details

Around this home

Schools

Climate risks

Historical weather

Sun exposure

Nearby similar homes

New listings for sale in 94028

Home values near 3510 Alpine Rd

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