OFF MARKET

Off Market Sep 2005 for $9M

$17,260,301

•

4 ba

•

12,532

sq ft

433 EL ARROYO Rd, Hillsborough, CA 94010

About this home

Single-familyProperty Type

1936Year Built

1.4 acresLot Size

$1,377Est. Price/Sq.Ft.

Listed by Susan Herman •DRE #00688139 • Clay Herman Realtor, Inc.

Contact: (650) 286-3458

Bought with Monica Seeger • Cashin Company

Redfin checked: 2 minutes ago

•Source:MLSListings #ML80507186

Redfin Estimate

$17,260,301

$8.3M since sold in September 2005$1.4M since August

Recently sold homes
Estimate history

This home's estimate is 149.2% higher than the average sale price ($6.93M) of 6 comparable homes.

SOLD AUG 28, 2026
$10,300,000
A
6 beds4.5 baths7,600 sq ft
19 Farm Ln, Hillsborough, CA 94010
SOLD JUN 10, 2026
$6,500,000
B
6 beds5.5 baths5,030 sq ft
420 El Arroyo Rd, Hillsborough, CA 94010
SOLD DEC 4, 2025
$4,800,000
C
5 beds6 baths5,965 sq ft
923 Hayne Rd, Hillsborough, CA 94010
SOLD JUN 23, 2026
$5,600,000
D
6 beds7 baths5,050 sq ft
1325 Marlborough Rd, Hillsborough, CA 94010
SOLD NOV 5, 2025
$9,700,000
E
6 beds4 baths3,940 sq ft
715 Brewer Dr, Hillsborough, CA 94010
SOLD JUL 14, 2026
$4,660,000
F
6 beds3.5 baths4,120 sq ft
521 Dorchester Rd, San Mateo, CA 94402

Claim this home to receive a free report every month with insights on the changing estimate.

Earn from this home

Sell

$13,270,135

Est. take-home

List your home with Redfin and save $86,302

Rent

$10,897/mo

Redfin rental estimate

List your home for rent

Market trends in 94010, CA

Last updated August 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-List Price

106.8%

0.4% MoM

Median sale price

$4.0M

$165K MoM

Avg. days on market

14d

2 days MoM

Recently sold homes

121

8 MoM

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See all

Provided by Redfin

Sale history for 433 EL ARROYO Rd

Date

Event

Price

Public Records

Sep 13, 2005

Sold

$9,000,000

$718/sq ft

MLSListings #ML80507186

Sep 13, 2005

Listing Removed

—

Aug 13, 2005

Sold

$9,000,000

$718/sq ft

Feb 15, 2005

Listed

$10,700,000

$854/sq ft

Public Records

Mar 8, 2000

Sold

$8,500,000

$678/sq ft

Public Records

Nov 17, 1998

Sold

$4,150,000

$331/sq ft

MLSListings #ML89804848

Nov 17, 1998

Listing Removed

—

Nov 5, 1998

Sold

$4,150,000

$331/sq ft

Feb 10, 1998

Listed

$4,500,000

$359/sq ft

MLSListings #ML89804801

Nov 17, 1998

Listing Removed

—

Nov 5, 1998

Sold

$4,150,000

$331/sq ft

Feb 10, 1998

Listed

$4,500,000

$359/sq ft

Public Records

Jul 21, 1995

Sold

$1,880,000

$150/sq ft

Year

Property tax

Land + Additions

Assessment*

2025

$101,394 (+0.2%)

$6,737,000 + $1,978,000

$8,715,000

2024

$101,206 (−0.3%)

$6,594,000 + $1,936,000

$8,530,000

2023

$101,548 (−10.7%)

$8,078,940 + $2,371,425

$10,450,365

2022

$113,702 (+5.7%)

$6,594,372 + $1,935,628

$8,530,000

2021

$107,600 (+5.0%)

$7,614,838 + $2,235,162

$9,850,000

2020

$102,488 (+1.4%)

$7,189,830 + $2,110,170

$9,300,000

2019

$101,092 (+3.2%)

$6,853,000 + $2,047,000

$8,900,000

2018

$97,913 (−0.5%)

$6,803,000 + $1,997,000

$8,800,000

2017

$98,414 (+7.7%)

$6,648,000 + $1,952,000

$8,600,000

2016

$91,371 (−0.3%)

$6,648,000 + $1,952,000

$8,600,000

2015

$91,612 (+4.3%)

$6,184,500 + $1,815,500

$8,000,000

2014

$87,805 (+1.1%)

$5,952,500 + $1,747,500

$7,700,000

2012

$86,882 (+0.3%)

$5,952,000 + $1,748,000

$7,700,000

2011

$86,607 (−6.0%)

$5,952,000 + $1,748,000

$7,700,000

2010

$92,109

$5,952,000 + $1,748,000

$7,700,000

2009

$92,058 (+2.3%)

$6,383,918 + $1,873,886

$8,257,804

2008

$89,949

$6,399,084 + $1,878,338

$8,277,422

Tax history for 433 EL ARROYO Rd

Year

Property tax

Land + Additions

Assessment*

2025

$101,394 (+0.2%)

$6,737,000 + $1,978,000

$8,715,000

2024

$101,206 (−0.3%)

$6,594,000 + $1,936,000

$8,530,000

2023

$101,548 (−10.7%)

$8,078,940 + $2,371,425

$10,450,365

2022

$113,702 (+5.7%)

$6,594,372 + $1,935,628

$8,530,000

2021

$107,600 (+5.0%)

$7,614,838 + $2,235,162

$9,850,000

2020

$102,488 (+1.4%)

$7,189,830 + $2,110,170

$9,300,000

2019

$101,092 (+3.2%)

$6,853,000 + $2,047,000

$8,900,000

2018

$97,913 (−0.5%)

$6,803,000 + $1,997,000

$8,800,000

2017

$98,414 (+7.7%)

$6,648,000 + $1,952,000

$8,600,000

2016

$91,371 (−0.3%)

$6,648,000 + $1,952,000

$8,600,000

2015

$91,612 (+4.3%)

$6,184,500 + $1,815,500

$8,000,000

2014

$87,805 (+1.1%)

$5,952,500 + $1,747,500

$7,700,000

2012

$86,882 (+0.3%)

$5,952,000 + $1,748,000

$7,700,000

2011

$86,607 (−6.0%)

$5,952,000 + $1,748,000

$7,700,000

2010

$92,109

$5,952,000 + $1,748,000

$7,700,000

2009

$92,058 (+2.3%)

$6,383,918 + $1,873,886

$8,257,804

2008

$89,949

$6,399,084 + $1,878,338

$8,277,422

*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
Permits

Beds

Baths

6.5

Stories

Lot width

—

Lot depth

—

Lot size

0.82 Acres

Year renovated

1980

Sq. Ft.

9,980

Year built

1929

Style

Single Family Residential

County

San Mateo County

APN

031011050

Parking Spaces

—

Basement

—

Accessible

—

HOA Dues

—

Garage

—

Features

—

Last updated by owner on Sep 2, 2026.

Mar 11, 2025 • Final

Electrical wiring

Install or replace cabinets, lighting, fireplace mantels, and ducting.

Remodel

Nov 8, 2022 • Final

Generator

Install a new self-contained diesel backup generator.

Generator

Permit history is from public records and may be incomplete or inaccurate. Redfin and its agents make no representations about the property condition or permit status. Buyers should independently verify all information.

Property details

Parking

Parking Information
Garage (Minimum): 3
Parking Description: Attached Garage, Gate/Door Opener, Guest/Visitor Parking, Off-Street Parking

Interior

Virtual Tour

Bedroom Information
# of Bedrooms (Minimum): 6
Bedrooms: Primary Suite/Retreat

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

Room Information
Den/Study/Office, Library, Rec/Rumpus Room, Formal Entry, Basement (Partial), Wine Cellar/Storage, Storage
Family Room Description: Separate Family Room
Dining Room Description: Formal Dining Room, Breakfast Room, Breakfast Bar
Kitchen Description: Pantry, Garbage Disposal, Refrigerator(s), 2+ Dishwashers, Microwave, 2+ Ovens, Oven (Self Cleaning), Trash Compactor, Oven (Built-In), Oven Range (Built-In), Hookups (Gas)

Interior Features
Laundry: In Laundry Room
Flooring: Tile, Carpet (Wall-to-Wall), Hardwood, Marble

Fireplace Information
Fireplace Description: In Family Room, In Living Room, Wood-Burning, Free-Standing, Fireplace Available

Heating & Cooling Information
Cooling: Central Forced Air
Heating: Forced Air

Exterior

Exterior Features
View: Bay, Local/Neighborhood
Roof: Slate
Yard/Grounds: Patio(s), Patio(s)/Deck(s) (Covered), Sprinkler(s) (Front), Sprinkler(s) (Rear), Sprinkler(s) (Auto), Tennis Court(s), Fenced

Building Information
Style: Tudor
Subclass: Single Family Home
Building Type: Detached
Exterior: Wood, Stucco
Concrete Perimeter
Building Height (Minimum): 3
Building Height (Maximum): 3

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

Property Features
Amenities: High Ceiling, Vaulted Ceiling, Wet Bar, Bay Window
Living Sq. Ft.: 12,532
Security Features: Security Fence

Property Information
Property Primary ID: 191911

Lot Information
Lot Description: Grade (Level), Grade (Sloped Up)
Lot Size Area Minimum Units: Acres
Lot Size Area Maximum Units: Acres
Zoning: R100

Financial

Tax/Assessment Information
City Transfer Tax: No

Utilities

Utility Information
Energy Features: Insulation (Unknown)
Sewer Septic: Sewer in Street, Sewer Connected

Water Information
Water: Public

Location

Multi-Unit Information
# of Stories: 3

School Information
Elementary School District: Hillsborough City Elementary
High School District: San Mateo Union High

Public facts

Beds: 8
Baths: 6.5
Sq. Ft.: 9,980
Stories: 2.0
Lot Size: 0.82 acres
Style: Single Family Residential
Year Built: 1929
Year Renovated: 1980
County: San Mateo County
APN: 031011050

Home facts updated by county records on Sep 2, 2026

Around this home

Schools

North Hillsborough School

Public K-5 • Assigned • 0.7mi

9/10

Crocker Middle School

Public 6-8 • Assigned • 0.6mi

8/10

San Mateo High School

Public 9-12 • Assigned • 1.9mi

9/10

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

2/10 Heat Factor

5 days above 85° expected this year, 10 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

Hillsborough, CA • 94010

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 10.5 hours in June and 5 hours in December, placing it above the U.S. average for solar exposure.

10.5 hrs

5 hrs

JuneDecember

Provided by Shadowmap

Estimated sale price

$16.40M – $19.85M

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Nearby similar homes

Sorry, we don't have any nearby similar homes to display. See all homes for sale in 94010

New listings for sale in 94010

OPEN SUN, 1PM TO 4PM

$995,000

2 beds2.5 baths1,400 sq ft

16 Lorton Ave #3, Burlingame, CA 94010

OPEN SUN, 1PM TO 4PM3D WALKTHROUGH

$5,998,000

5 beds5 baths4,850 sq ft

40 Eugenia Way, Hillsborough, CA 94010

OPEN SUN, 1PM TO 4PM

$15,695,000

5 beds7 baths5,707 sq ft

1950 Ralston Ave, Hillsborough, CA 94010

NEW 29 HRS AGO

$4,087,000

4 beds3.5 baths3,150 sq ft

30 Bluebell Ln, Hillsborough, CA 94010

NEW 30 HRS AGOVIDEO TOUR

$4,995,000

3 beds3 baths2,680 sq ft

739 El Cerrito Ave, Hillsborough, CA 94010

OPEN SUN, 1PM TO 4PM3D & VIDEO TOUR

$4,398,000

4 beds2.5 baths3,110 sq ft

1345 Lakeview Dr, Hillsborough, CA 94010

OPEN SUN, 2PM TO 4PM

$5,498,000

6 beds4 baths3,230 sq ft

15 Mc Kenzie Ct, Hillsborough, CA 94010

OPEN SUN, 1:30PM TO 4:30PMVIDEO TOUR

$999,998

2 beds2 baths1,262 sq ft

530 El Camino Real #308, Burlingame, CA 94010

OPEN SUN, 2PM TO 4PM3D WALKTHROUGH

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2 beds2 baths1,190 sq ft

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Home values near 433 EL ARROYO Rd

Data from public records.

Address	Redfin Estimate
445 El Arroyo Rd, Hillsborough, CA 4 Beds \| 3.5 Baths \| 3740 Sq. Ft.	$6,380,443
415 El Arroyo Rd, Hillsborough, CA 5 Beds \| 4 Baths \| 4030 Sq. Ft.	$8,435,582

Address	Redfin Estimate
457 El Arroyo Rd, Hillsborough, CA 4 Beds \| 3.5 Baths \| 4040 Sq. Ft.	$6,160,108
420 El Arroyo Rd, Hillsborough, CA 6 Beds \| 5.5 Baths \| 5030 Sq. Ft.	$8,813,511

Address	Redfin Estimate
442 El Arroyo Rd, Hillsborough, CA 3 Beds \| 3.5 Baths \| 3330 Sq. Ft.	$6,017,226
460 El Arroyo Rd, Hillsborough, CA 4 Beds \| 3.5 Baths \| 4280 Sq. Ft.	$6,428,295

Property information provided by MLSListings when last listed in 2005. 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 94010, CA

Sale history for 433 EL ARROYO Rd

Tax history for 433 EL ARROYO Rd

Public record

Property details

Around this home

Schools

Lifestyle

Climate risks

Historical weather

Sun exposure

Nearby similar homes

New listings for sale in 94010

Home values near 433 EL ARROYO Rd

More real estate resources