Google street view image for 821 Arroyo Rd, Los Altos, CA 94024

Off Market Nov 1987 for $420K

$5,191,913

Est. refi paymentEst. refi $2,775/mo

•

3 ba

•

2,590

sq ft

821 Arroyo Rd, Los Altos, CA 94024

About this home

821 Arroyo Rd is a 2,590 square foot house on a 0.37 acre lot with 4 bedrooms and 3 bathrooms. - it last sold on November 06, 1987 for $420,000. Based on Redfin's Los Altos data, we estimate the home's value is $5,191,913.

Single-familyProperty Type

1951Year Built

0.37 acresLot Size

$2,005Est. Price/Sq.Ft.

Source:Public Records

Redfin Estimate

$5,191,913

$4.8M since sold in November 1987$125K since August

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 10.4% lower than the average sale price ($5.79M) of 5 comparable homes.

SOLD AUG 5, 2026
$5,760,000
A
4 beds3 baths1,992 sq ft
360 Sunkist Ln, Los Altos, CA 94022
SOLD APR 9, 2026
$5,650,000
B
4 beds2.5 baths2,540 sq ft
617 Giralda Dr, Los Altos, CA 94024
SOLD MAR 4, 2026
$6,000,000
C
4 beds3 baths2,948 sq ft
648 Spargur Dr, Los Altos, CA 94022
SOLD JUL 20, 2026
$6,550,000
D
3 beds3 baths2,510 sq ft
546 Cecelia Ct, Los Altos, CA 94022
SOLD OCT 14, 2025
$5,000,000
E
5 beds3 baths2,461 sq ft
771 Sunshine Dr, Los Altos, CA 94024

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Earn from this home

Sell

$4,918,338

Est. take-home

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Est. cash available

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Rent

$9,296/mo

Redfin rental estimate

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Market trends in 94024, CA

Last updated August 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-List Price

104.0%

+0.1% MoM

Median sale price

$4.9M

$127K MoM

Avg. days on market

1 days MoM

Recently sold homes

5 MoM

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766 Arroyo Rd, Los Altos, CA 94024
See all

Provided by Redfin

Sale history for 821 Arroyo Rd

Year

Property tax

Land + Additions

Assessment*

2025

$15,994 (+4.3%)

$585,713 + $723,867

$1,309,580

2024

$15,331 (−1.8%)

$574,229 + $709,674

$1,283,903

2023

$15,619 (+0.3%)

$562,970 + $695,759

$1,258,729

2022

$15,572 (−1.6%)

$551,932 + $682,117

$1,234,049

2021

$15,820 (+34.2%)

$541,110 + $668,743

$1,209,853

2020

$11,784 (+4.2%)

$530,500 + $655,631

$1,186,131

2019

$11,305 (+1.4%)

$525,061 + $325,262

$850,323

2018

$11,150 (+3.8%)

$514,766 + $318,885

$833,651

2017

$10,744 (+1.6%)

$494,778 + $306,503

$801,281

2016

$10,573 (+0.6%)

$494,778 + $306,503

$801,281

2015

$10,508 (+2.3%)

$485,077 + $300,494

$785,571

2014

$10,275 (+1.3%)

$468,432 + $290,184

$758,616

2012

$10,143 (+1.3%)

$466,315 + $288,873

$755,188

2011

$10,012 (+3.5%)

$457,172 + $283,209

$740,381

2010

$9,676 (−0.4%)

$448,208 + $277,656

$725,864

2009

$9,715 (−5.6%)

$444,859 + $275,581

$720,440

2008

$10,287

$437,173 + $270,820

$707,993

Tax history for 821 Arroyo Rd

Year

Property tax

Land + Additions

Assessment*

2025

$15,994 (+4.3%)

$585,713 + $723,867

$1,309,580

2024

$15,331 (−1.8%)

$574,229 + $709,674

$1,283,903

2023

$15,619 (+0.3%)

$562,970 + $695,759

$1,258,729

2022

$15,572 (−1.6%)

$551,932 + $682,117

$1,234,049

2021

$15,820 (+34.2%)

$541,110 + $668,743

$1,209,853

2020

$11,784 (+4.2%)

$530,500 + $655,631

$1,186,131

2019

$11,305 (+1.4%)

$525,061 + $325,262

$850,323

2018

$11,150 (+3.8%)

$514,766 + $318,885

$833,651

2017

$10,744 (+1.6%)

$494,778 + $306,503

$801,281

2016

$10,573 (+0.6%)

$494,778 + $306,503

$801,281

2015

$10,508 (+2.3%)

$485,077 + $300,494

$785,571

2014

$10,275 (+1.3%)

$468,432 + $290,184

$758,616

2012

$10,143 (+1.3%)

$466,315 + $288,873

$755,188

2011

$10,012 (+3.5%)

$457,172 + $283,209

$740,381

2010

$9,676 (−0.4%)

$448,208 + $277,656

$725,864

2009

$9,715 (−5.6%)

$444,859 + $275,581

$720,440

2008

$10,287

$437,173 + $270,820

$707,993

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

Permits

Jul 30, 2020 • Final

Adu

Construct a detached accessory dwelling unit.

ADU

Jun 25, 2020 • Final

Residential mechanical

Install a new central heating and air conditioning system.

HVAC

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

Interior

Fireplace Information
# of Fireplaces: 1
Has Fireplace

Room Information
# of Rooms: 9

Exterior

Exterior Information
Physical Condition: Average
Building Style Type: U-Shape
Construction Type: Wood
Building Construction Quality: Average
Roof Framing Type: Wood

Pool Information
Pool Type: Pool/Spa
Has Pool

Property Information
Subdivision Name: MONTEBELO ACRES
Living Sq. Ft: 2,590
Ground Floor Sq. Ft: 1,510
Building Sq. Ft: 2,590
# of Stories: 1
Legal Description: MONTEBELLO ACRES MAP G6 811

Parking & Garage Information
Parking Type: Garage/Carport
Garage/Parking Sq. Ft: 520
Garage / Carport Type: Garage/Carport

Lot Information
# of Buildings: 2
Land Sq. Ft: 16,000
Legal Lot Number: 59
Municipality Name: LOS ALTOS CITY
Acres: 0.3673
Depth Footage: 160
Front Footage: 100
Zoning Code: R110
County Use Description: RESID SINGLE FAMILY

Location Information
Parcel Location Influence: Creek

Financial

Assessor Information
Assessment Year: 2026
Tax Area: LOS ALTOS CITY

Public facts

Beds: 4
Baths: 3.0
Sq. Ft.: 2,590
Stories: 1.0
Lot Size: 0.37 acres
Style: Single Family Residential
Year Built: 1951
Year Renovated: 1951
County: Santa Clara County
APN: 18929094

Home facts updated by county records on Aug 21, 2026

Around this home

Schools

Springer Elementary School

Public K-6 • Assigned • 0.7mi

10/10

Georgina P. Blach Junior High School

Public 7-8 • Assigned • 1.4mi

9/10

Los Altos High School

Public 9-12 • Assigned • 1.0mi

10/10

Provided by GreatSchools

Lifestyle

Provided by Walk Score and Local Logic

Local insights from Redfin agents

The Los Altos housing market remains highly competitive, fueled by top-rated schools, desirable neighborhoods, and proximity to major tech employers. Well-priced homes continue to attract strong demand and multiple offers.
1 month ago • Los Altos
Fifi Li
Redfin Premier agent
124 deals
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Los Altos has its "Village", a cozy 6-block downtown of retail, an architecturally & functionally impressive community center, and mostly sidewalk-free streets preserving a rural feel. Foodies will love DeMartini Orchard, the town’s oldest business,...
2 months ago • Los Altos
Susanne Bohl
Redfin Premier agent
116 deals
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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

4/10 Heat Factor

7 days above 92° 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

13 unhealthy days expected this year, 13 days in 30 years

Provided by First Street

Historical weather

Los Altos, CA • 94024

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 11.1 hours in June and 4.9 hours in December, placing it above the U.S. average for solar exposure.

11.1 hrs

4.9 hrs

JuneDecember

Provided by Shadowmap

Estimated sale price

$4.93M – $5.97M

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Home values near 821 Arroyo Rd

Data from public records.

Address	Redfin Estimate
810 Arroyo Road, Los Altos, CA 3 Beds \| 3 Baths \| 2853 Sq. Ft.	$5,256,055
840 Arroyo Road, Los Altos, CA 4 Beds \| 4 Baths \| 3433 Sq. Ft.	$5,936,710

Address	Redfin Estimate
809 Arroyo Road, Los Altos, CA 5 Beds \| 6 Baths \| 8383 Sq. Ft.	$9,662,659
830 Arroyo Road, Los Altos, CA 5 Beds \| 4.5 Baths \| 3985 Sq. Ft.	$8,853,313

Address	Redfin Estimate
789 Arroyo Road, Los Altos, CA 3 Beds \| 4 Baths \| 3815 Sq. Ft.	$6,525,724
798 Arroyo Road, Los Altos, CA 5 Beds \| 6 Baths \| 5134 Sq. Ft.	$8,160,315

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About this home

Redfin Estimate

Earn from this home

Market trends in 94024, CA

Sale history for 821 Arroyo Rd

Tax history for 821 Arroyo Rd

Permits

Property details

Around this home

Schools

Lifestyle

Local insights from Redfin agents

Climate risks

Historical weather

Sun exposure

Nearby similar homes

New listings for sale in 94024

Home values near 821 Arroyo Rd

More real estate resources