OFF MARKET

Off Market May 2024 for $5.7M

$11,502,906

Est. refi paymentEst. refi $37,514/mo

•

8,670

sq ft

446 El Arroyo Rd, Hillsborough, CA 94010

About this home

ONE OF HILLSBOROUGH'S MOST IMPRESSIVE BAY-VIEW MANSIONS! Walk to Burlingame! 10 minutes to SFO! You won't believe the architectural quality and drama! Soaring Bay Views for this renovated classic, assigned to North Elementary and within walking distance of Downtown Burlingame Avenue! Best of both worlds with authentic Gatsby character, yet this house was painstakingly restored in the early 2000s to bespoke heights. Storybook street of minimal traffic, shouldered by other picture-perfect mansions, only 1.4 miles to downtown Burlingame & just 1.1 miles to North School. * Grand entertaining platform of architectural significance on 4 levels. * Ceilings soar to 25 feet. * Monumental lobby of herringbone floors & spiral staircase that towers to 22 feet. * Esquire Library + Separate Office * In-Law Apartment * 2,000 bottle Pro Wine Cellar * Loft Level for Gym/Playroom * Bay-View Primary Suite of 18 ft. ceilings * Wow-Factor Rooftop Deck with Epic Bay Views to SF * Private motor court. Many curated pieces of artisan-carved furniture were designed for the house. * Plans available by TRG Architects for Deluxe Carport to match the style of the home

Single-familyProperty Type

1928Year Built

0.37 acresLot Size

$1,327Est. Price/Sq.Ft.

Listed by Geoffrey Nelson •DRE #01313666 • Coldwell Banker Realty

Contact: 650-455-3735

Bought with RECIP RECIP •DRE #00000000 • Out of Area Office

Redfin checked: 2 minutes ago

•Source:MLSListings #ML81941975

Redfin Estimate

$11,502,906

$5.8M since sold in May 2024$38K since August

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 39.9% higher than the average sale price ($8.22M) of 5 comparable homes.

SOLD JUN 10, 2026
$6,500,000
A
6 beds5.5 baths5,030 sq ft
420 El Arroyo Rd, Hillsborough, CA 94010
SOLD MAR 27, 2026
$14,500,000
B
5 beds7.5 baths6,015 sq ft
729 Chiltern Rd, Hillsborough, CA 94010
SOLD NOV 13, 2025
$8,600,000
C
6 beds6 baths6,835 sq ft
720 Brewer Dr, Hillsborough, CA 94010
SOLD AUG 26, 2026
$6,500,000
D
5 beds7.5 baths4,555 sq ft
452 Roblar Ave, Hillsborough, CA 94010
SOLD AUG 12, 2026
$5,000,000
E
5 beds3 baths3,205 sq ft
554 Edgewood Rd, San Mateo, CA 94402

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Earn from this home

Sell

$6,535,003

Est. take-home

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Refinance

Est. cash available

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Rent

$10,644/mo

Redfin rental estimate

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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

New listings for sale

$1,800,000
2 beds1 bath850 sq ft
Undisclosed address, Burlingame, CA 94010
NEW 1 DAY AGO
$3,395,000
4 beds3 baths1,710 sq ft
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VIDEO TOUR
$1,899,000
3 beds3.5 baths2,206 sq ft
822 Anson Ln, Burlingame, CA 94010
OPEN SEP 15, 10AM TO 1PM
$2,995,000
3 beds2.5 baths1,950 sq ft
1812 Sanchez Ave. Ave, Burlingame, CA 94010
$2,995,000
4 beds2 baths2,220 sq ft
3059 Arguello Dr, Burlingame, CA 94010
$5,988,000
5 beds4.5 baths4,560 sq ft
860 Longview Rd, Hillsborough, CA 94010
$2,148,000
2 beds1 bath1,070 sq ft
473 Bloomfield Rd, Burlingame, CA 94010
3D WALKTHROUGH
$2,795,000
3 beds2.5 baths2,072 sq ft
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3D WALKTHROUGH
$959,000
2 beds2 baths1,440 sq ft
1500 Sherman Ave Unit 2E, Burlingame, CA 94010
$765,000
1 bed1 bath935 sq ft
1515 Floribunda Ave #304, Burlingame, CA 94010
See all

Provided by Redfin

Sale history for 446 El Arroyo Rd

Date

Event

Price

MLSListings #ML81941975

May 6, 2024

Sold

$5,700,000

$657/sq ft

Apr 22, 2024

Contingent

—

Apr 2, 2024

Price Changed

$5,888,000

$679/sq ft

Feb 9, 2024

Price Changed

$6,200,000

$715/sq ft

Nov 28, 2023

Price Changed

$6,498,000

$749/sq ft

Oct 18, 2023

Price Changed

$6,850,000

$790/sq ft

Sep 14, 2023

Listed

$7,388,000

$852/sq ft

Public Records

Aug 13, 2012

Sold

$4,800,000

$554/sq ft

Public Records

Jul 16, 1999

Sold

$2,725,000

$314/sq ft

Public Records

Feb 28, 1989

Sold

$1,450,000

$167/sq ft

Year

Property tax

Land + Additions

Assessment*

2025

$71,031 (+0.5%)

$2,444,940 + $3,485,340

$5,930,280

2024

$70,690 (+1.6%)

$2,397,000 + $3,417,000

$5,814,000

2023

$69,582 (+4.3%)

$2,897,475 + $2,897,475

$5,794,950

2022

$66,729 (+2.0%)

$2,840,662 + $2,840,662

$5,681,324

2021

$65,399 (+1.7%)

$2,784,963 + $2,784,963

$5,569,926

2020

$64,288 (+2.3%)

$2,730,356 + $2,730,356

$5,460,712

2019

$62,854 (+3.0%)

$2,702,360 + $2,702,360

$5,404,720

2018

$61,033 (+1.5%)

$2,649,373 + $2,649,373

$5,298,746

2017

$60,110 (+2.5%)

$2,546,496 + $2,546,496

$5,092,992

2016

$58,618 (+1.3%)

$2,546,496 + $2,546,496

$5,092,992

2015

$57,850 (+2.6%)

$2,496,565 + $2,496,565

$4,993,130

2014

$56,406 (+42.8%)

$2,410,896 + $2,410,896

$4,821,792

2012

$39,511 (+2.8%)

$2,400,000 + $2,400,000

$4,800,000

2011

$38,421 (+1.5%)

$1,667,235 + $1,667,235

$3,334,470

2010

$37,852 (+0.2%)

$1,634,545 + $1,634,545

$3,269,090

2009

$37,782 (+2.3%)

$1,622,329 + $1,622,329

$3,244,658

2008

$36,925

$1,626,184 + $1,626,184

$3,252,368

Tax history for 446 El Arroyo Rd

Year

Property tax

Land + Additions

Assessment*

2025

$71,031 (+0.5%)

$2,444,940 + $3,485,340

$5,930,280

2024

$70,690 (+1.6%)

$2,397,000 + $3,417,000

$5,814,000

2023

$69,582 (+4.3%)

$2,897,475 + $2,897,475

$5,794,950

2022

$66,729 (+2.0%)

$2,840,662 + $2,840,662

$5,681,324

2021

$65,399 (+1.7%)

$2,784,963 + $2,784,963

$5,569,926

2020

$64,288 (+2.3%)

$2,730,356 + $2,730,356

$5,460,712

2019

$62,854 (+3.0%)

$2,702,360 + $2,702,360

$5,404,720

2018

$61,033 (+1.5%)

$2,649,373 + $2,649,373

$5,298,746

2017

$60,110 (+2.5%)

$2,546,496 + $2,546,496

$5,092,992

2016

$58,618 (+1.3%)

$2,546,496 + $2,546,496

$5,092,992

2015

$57,850 (+2.6%)

$2,496,565 + $2,496,565

$4,993,130

2014

$56,406 (+42.8%)

$2,410,896 + $2,410,896

$4,821,792

2012

$39,511 (+2.8%)

$2,400,000 + $2,400,000

$4,800,000

2011

$38,421 (+1.5%)

$1,667,235 + $1,667,235

$3,334,470

2010

$37,852 (+0.2%)

$1,634,545 + $1,634,545

$3,269,090

2009

$37,782 (+2.3%)

$1,622,329 + $1,622,329

$3,244,658

2008

$36,925

$1,626,184 + $1,626,184

$3,252,368

*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

7.5

Stories

Lot width

—

Lot depth

—

Lot size

0.37 Acres

Year renovated

1940

Sq. Ft.

6,550

Year built

1928

Style

Single Family Residential

County

San Mateo County

APN

031012170

Parking Spaces

—

Basement

—

Accessible

—

HOA Dues

—

Garage

—

Features

—

Last updated by owner on Sep 2, 2026.

Property details

Parking

Parking Information
Parking Description: Off-Street Parking, Parking Area

Interior

Bedroom Information
# of Bedrooms (Minimum): 6
# of Bedrooms (Maximum): 6

Bathroom Information
# of Baths (Full): 6
# of Baths (1/2): 1

Room Information
Attic, Basement (Finished), Bonus/Hobby Room, Library, Loft, Office Area, Recreation Room, Wine Cellar/Storage
Family Room Description: Kitchen/Family Room Combo, Separate Family Room
Dining Room Description: Eat in Kitchen, Formal Dining Room
Kitchen Description: Island, Oven Range (Gas)

Interior Features
Laundry: Inside
Flooring: Hardwood

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

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

Exterior

Exterior Features
View: Bay, Bridge, City Lights, Greenbelt, Water
Roof: Wood Shakes/Shingles
Yard/Grounds: Storage Shed/Structure

Building Information
Style: Country English, English, Luxury, Traditional, Tudor
Subclass: Single Family Home
Building Type: Detached
Concrete Perimeter and Slab

Pool Information
Has Pool

Property Features
Amenities: High Ceiling, Open Beam Ceiling, Vaulted Ceiling, Walk-In Closet
Living Sq. Ft.: 8,670

Property Information
Property Primary ID: 691788

Lot Information
Lot Acres: 0.3687
Lot Size Area Minimum Units: Sq. Ft.
Lot Size Area Maximum Units: Sq. Ft.
Lot Size Source: Assessor
Zoning: R10025

Utilities

Utility Information
Sewer Septic: Sewer (Public)
Utilities: Public Utilities

Water Information
Water: Public

Location

Multi-Unit Information
# of Stories: 2

School Information
Elementary School: North Hillsborough
Elementary School District: Hillsborough City Elementary
Middle School: Crocker Middle
High School District: San Mateo Union High

Public facts

Beds: 4
Baths: 7.5
Sq. Ft.: 6,550
Stories: 2.0
Lot Size: 0.37 acres
Style: Single Family Residential
Year Built: 1928
Year Renovated: 1940
County: San Mateo County
APN: 031012170

Home facts updated by county records on Sep 2, 2026

Around this home

Schools

North Hillsborough School

Public K-5 • Assigned • 0.6mi

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

$10.93M – $13.23M

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Home values near 446 El Arroyo Rd

Data from public records.

Address	Redfin Estimate
445 El Arroyo Rd, Hillsborough, CA 4 Beds \| 3.5 Baths \| 3740 Sq. Ft.	$6,046,598
415 El Arroyo Rd, Hillsborough, CA 5 Beds \| 4 Baths \| 4030 Sq. Ft.	$8,458,525

Address	Redfin Estimate
457 El Arroyo Rd, Hillsborough, CA 4 Beds \| 3.5 Baths \| 4040 Sq. Ft.	$6,046,108
420 El Arroyo Rd, Hillsborough, CA 6 Beds \| 5.5 Baths \| 5030 Sq. Ft.	$8,320,533

Address	Redfin Estimate
442 El Arroyo Rd, Hillsborough, CA 3 Beds \| 3.5 Baths \| 3330 Sq. Ft.	$6,221,805
460 El Arroyo Rd, Hillsborough, CA 4 Beds \| 3.5 Baths \| 4280 Sq. Ft.	$5,870,024

Property information provided by MLSListings when last listed in 2023. 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 446 El Arroyo Rd

Tax history for 446 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 446 El Arroyo Rd

More real estate resources