1663 Heron Ave, Sunnyvale, CA 94087 Property Records

Santa Clara County property record for 1663 Heron Ave, Sunnyvale, CA 94087 · Last verified October 2025

Property Summary

Property Type	Single Family Home
Details	4 bd · 3 ba · 1,651 sqft · built 1958
Lot Size	0.144 acres (6,300 sqft)
Owner	Individual Name on File
Last Sale	$830,000 (Nov 2009)
Tax Bill	$13,958 (2025)
Deeds & Mortgages	Jan 2021 Mortgage Jan 2021 Transfer
Flood Zone	Zone X (moderate risk)
APN	`309-48-028`

Property Details

APN / Parcel Number

Primary APN	`309-48-028`

Interior

Bedrooms	4 Beds
Full Baths	3 Baths
Total Rooms	6 Rooms
Stories	1 Story
Building Area	1,651 sqft Living Area
1st Floor Area	1,152 sqft
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1958
Architectural Style	Other
Exterior Material	Stucco
Construction Type	Wood
Lot Area	6,300 sqft (0.144 acres)
Lot Dimensions	100 ft deep x 63 ft wide
Garage Area	460 sqft
Parking Spaces	2 Parking Spaces

Utilities, Heating & Cooling

Cooling System	None
Heating System	HVAC

Location & Zoning

Street Address	1663 HERON AVE
City	SUNNYVALE
State	CA
Zip	94087-4806
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	TR 1638 LOT 32
Legal Subdivision	LONDONDERRY GLEN
Legal Tract	1638
Legal Lot Number	32
Jurisdiction	SANTA CLARA CA
Township / Civil Division	SAN JOSE
Census Block Group	3
Census Block	3007
Census Tract	508204

Owner

Source: Santa Clara County records · APN 309-48-028

Assessment roll updated July 1, 2025 · Last verified October 2025

Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.

Owner of Record	Individual Name on File
Co-owner	Verified Secondary Owner
Mailing Address	1663 HERON AVE, SUNNYVALE, CA 94087-4806
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Date	Document
Jan 15, 2021	Intrafamily Transfer, Transfer · Conventional Mortgage QUICKEN LOANS LLC
Jan 15, 2021	Quit Claim Deed, Transfer AMROCK INC

Assessor's Deed Record

Deed Names	2 Verified Names on Deed
Last Sale	Nov 06, 2009 · Amount on Record
Deed Sale	Nov 06, 2009 · Amount on Record
Prior Sale	Jan 15, 2021
Deed Document Number	0020492678
Record Updated	Jun 08, 2026

January 2021: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	SANTA CLARA CA
Recording Date	Jan 15, 2021
Property Address	1663 HERON AVE, SUNNYVALE, CA 94087-4806
Document Number	0024788736
Map Reference	MB 76 PG 56
Instrument Date	Dec 28, 2020
Instrument	24788736
Transaction Type	Transfer
Record Updated	Sep 01, 2021
Title Company	AMROCK LLC

Transaction

Tax	$0.00
Amount Accuracy	Transfer Tax Exempt
Additional	Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Community Property with Right of Survivorship
Address	1663 HERON AVE, SUNNYVALE, CA 94087-4806

Mortgage

Document Number	0024788737
Date	Jan 15, 2021
Instrument	24788737

Lender

Name	QUICKEN LOANS LLC
Type	Mortgage Company

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	180 Months
Due	Jan 01, 2036

January 2021: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	SANTA CLARA CA
Recording Date	Jan 15, 2021
Property Address	1663 HERON AVE, SUNNYVALE, CA 94087-4806
Document Number	0024788738
Instrument Date	Dec 28, 2020
Instrument	24788738
Transaction Type	Transfer
Record Updated	Jan 27, 2021
Title Company	AMROCK INC

Transaction

Tax	$0.00
Additional	Quitclaim Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Personal Trust
Address	1663 HERON AVE SUNNYVALE CA 940874806, SUNNYVALE, CA 94087-4806

Tax Assessment & Valuation

Source: Santa Clara County records · Assessment roll updated July 1, 2025 · Last verified October 2025

Property Jurisdictions

Type	Name
State	California
County	Santa Clara County
Municipality	Sunnyvale City
Elementary School District	Cupertino Union Elementary School District (KG - 08)
Secondary School District	Fremont Union High School District (09 - 12)

Tax Bill & Assessment History

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

Year	Tax Bill	Assessed Value
2025	$13,958.00 (+3.53%)	$1,184,013 (+4.04%) Land $942,295 Building $241,718
2023	$13,482.00 (+0.22%)	$1,138,038 Land $905,705 Building $232,333
2022	$13,453.00

Flood & Wildfire

Source: FEMA National Flood Hazard Layer, Santa Clara County (06085C), updated January 18, 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026

Flood

FEMA Flood Zone	Zone X
Special Flood Hazard Area	No
Flood Hazard	Moderate
500-Year Floodplain	Yes

Wildfire

Wildfire Risk	Not rated no burnable land in reach
Wildfire Likelihood	Negligible
Exposure	None beyond ember reach

Values are read at the parcel center point; lenders make the official flood determination.

Internet Providers

Source: FCC Broadband Data Collection, availability as of December 31, 2025 · Published October 2026 · based on 499 locations within about half a mile of this property

Provider	Technology	Download / Upload (Mbps)
Xfinity	Cable	2,000 / 2,000
Verizon	Fixed Wireless	1,000 / 75
Etheric Communications, LLC.	Fixed Wireless (licensed-by-rule)	250 / 100
Ridge Wireless	Fixed Wireless (unlicensed)	100 / 60
T-Mobile USA	Fixed Wireless	100 / 20
AT&T	DSL	100 / 20
Starlink	Satellite (low-earth orbit)	280 / 30

May also be available at this address: AT&T, California Internet. Availability varies by address; speeds are provider-advertised maximums, not measured.

Mobile Coverage

5G and 4G LTE

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