820 Arroyo Rd, Los Altos, CA 94024 Property Records

Santa Clara County property record for 820 Arroyo Rd, Los Altos, CA 94024

Property Summary

Property Type	Single Family Home
Details	5 bd · 6.5 ba · 6,207 sqft · built 2007
Lot Size	0.402 acres (17,500 sqft)
Owner	2 Trust Names on File
Last Sale	$1,550,000 (Sep 2004)
Tax Bill	$62,040 (2025)
Deeds & Mortgages	Jun 2021 Mortgage May 2019 Mortgage
Flood Zone	Zone X (moderate risk)
APN	`189-29-014`

Property Details

APN / Parcel Number

Primary APN	`189-29-014`

Interior

Bedrooms	5 Beds
Full Baths	6.5 Baths
Half Baths	1 Half Bath
Total Rooms	16 Rooms
Stories	3 Stories
Building Area	6,207 sqft Living Area
1st Floor Area	2,315 sqft
2nd Floor Area	1,653 sqft
Family Room	Family Room
Utility Room	Utility Room
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 2007
Effective Year Built	Effective 2007
Architectural Style	H-Shape
Construction Type	Wood
Lot Area	17,500 sqft (0.402 acres)
Lot Dimensions	175 ft deep x 100 ft wide
Garage Area	420 sqft
Parking Spaces	2 Parking Spaces
Porch	Porch

Utilities, Heating & Cooling

Cooling System	HVAC
Heating System	Forced Air with A/C

Location & Zoning

Street Address	820 ARROYO RD
City	LOS ALTOS
State	CA
Zip	94024-3113
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R110
Legal Subdivision	MONTEBELLO ACRES
Legal Lot Number	46
Jurisdiction	SANTA CLARA CA
Township / Civil Division	SAN JOSE
Census Block Group	1
Census Block	1020
Census Tract	510200

Owner

820 Arroyo Rd is owner-occupied and held in a trust since September 2004.

Source: Santa Clara County records, as of July 27, 2026

Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.

Owner of Record	2 Trust Names on File
Mailing Address	820 ARROYO RD, LOS ALTOS, CA 94024-3113
Occupancy	Owner Occupied
Owner Type	Company
Vesting	Trust

Deeds, Mortgages & Sale History

Date	Document
Jun 30, 2021	Deed of Trust, Mortgage · Conventional Mortgage WELLS FARGO BANK NA
May 23, 2019	Deed of Trust, Mortgage · ARM WELLS FARGO BANK NA

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Sep 30, 2004 · Amount on File
Deed Sale	Sep 30, 2004 · Amount on File
Deed Document Number	200418027608
Prior Transfer Date	Jul 28, 2004
Prior Transfer Doc	0017978660
Record Updated	Oct 29, 2026

June 2021: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	SANTA CLARA CA
Property Address	820 ARROYO RD, LOS ALTOS, CA 94024-3113
Transaction Type	Mortgage
Record Updated	Jul 8, 2021
Title Company	CHICAGO TITLE COMPANY

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	820 ARROYO RD, LOS ALTOS, CA 94024-3113

Mortgage

Document Number	0025013614
Date	Jun 30, 2021
Instrument	25013614

Lender

Name	WELLS FARGO BANK NA
Type	Bank
Address	SIOUX FALLS, SD 57104

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	361 Months
Due	Jul 1, 2051

Interest

Rate Type	Adjustable Rate
Rate	2.62%
Type Change Date	Jul 1, 2028
Change Frequency	6 Months
Min Rate At Change	2.75%
Max Rate At Change	4.62%
Index	Other
Max Rate	7.62%

May 2019: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	SANTA CLARA CA
Property Address	820 ARROYO RD, LOS ALTOS, CA 94024-3113
Transaction Type	Mortgage
Record Updated	Feb 5, 2021
Title Company	CHICAGO TITLE COMPANY

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0024186521
Date	May 23, 2019
Instrument	24186521

Lender

Name	WELLS FARGO BANK NA
Type	Bank
Address	SIOUX FALLS, SD 57104

Agreement

Type	ARM
Amount	Amount on Record
Term	361 Months
Due	Jun 1, 2049

Interest

Rate Type	Adjustable Rate
Rate	3%
Adjustable	Adjustable Rate Rider
Type Change Date	Jun 1, 2026
Change Frequency	Annually
Min Rate At Change	2.25%
Max Rate At Change	5%
Index	1-Year LIBOR
Max Rate	8%

Tax Assessment & Valuation

The 2025 property tax bill for 820 Arroyo Rd was $62,040.

Source: Santa Clara County assessment roll, as of July 27, 2026

Property Jurisdictions

Type	Name
State	California
County	Santa Clara County
Municipality	Los Altos City
Elementary School District	Los Altos Elementary School District (KG - 08)
Secondary School District	Mountain View-Los Altos Union School District (09 - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value
2026		$5,316,105 (+2%) Land $2,203,777 Building $3,112,328
2025	$62,040.00	$5,211,868 Land $2,160,566 Building $3,051,302
2023	$59,672.00 (+1.63%)	$5,009,486 Land $2,076,669 Building $2,932,817
2022	$58,713.00

Assessed value is set for property tax purposes and is not a market price estimate.

Flood

FEMA maps place 820 Arroyo Rd in Zone X, an area of moderate flood risk, within 500 ft of a high-risk flood zone.

Source: FEMA National Flood Hazard Layer, effective January 18, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026

FEMA Flood Zone	Zone X moderate risk
500-Year Floodplain	Yes 0.2% annual chance
Nearest Special Flood Hazard Area	Zone A, within 500 ft
Flood Insurance Requirement	Not required lenders may require it
Community Rating System	Class 7 (15% premium discount)
Nearby Flood Policies	7 in force

Values are read at the parcel center point; flood claims are located to the census block group, not this parcel; lenders make the official flood determination.

Wildfire

The area around 820 Arroyo Rd has no burnable land within ember reach, so its wildfire risk is not rated.

Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024

Wildfire Risk	Not rated no burnable land within ember reach

Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.

Drinking Water

Source: EPA Safe Drinking Water Information System, as of September 2026

Water System	CWSC LOS ALTOS SUBURBAN private · serves 63,559 people · EPA ID CA4310001
Water Source	Purchased surface water from several systems
Last State Inspection	Aug 2024
Lead	2 ppb (2023–2025) action level 15 ppb

Violations Reported to EPA

Water Quality	None last 10 years
Treatment and Procedure	None last 10 years
Monitoring and Reporting	None last 3 years

Results are for the whole water system, not water tested at this address; lead at the tap also depends on the building's own pipes.

Internet Providers

Source: FCC Broadband Data Collection, based on 615 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
AT&T Fiber · DSL · Fixed Wireless in parts of the area	5,000 / 5,000
Xfinity Cable	2,000 / 250
Cruzio Fixed Wireless	1,000 / 1,000
Verizon Fixed Wireless	300 / 20
Etheric Networks Fixed Wireless	250 / 100
Ridge Wireless Fixed Wireless	100 / 60
T-Mobile Fixed Wireless	100 / 20

May also be available: Astound Broadband, GeoLinks.

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