1536 Bittern Dr, Sunnyvale, CA 94087 Property Records

Santa Clara County property record for 1536 Bittern Dr, Sunnyvale, CA 94087

Property Summary

Property Type	Single Family Home
Details	4 bd · 3 ba · 1,729 sqft · built 1964
Lot Size	0.142 acres (6,200 sqft)
Owner	Individual Name on File
Last Sale	$2,825,000 (Oct 2024)
Tax Bill	$33,013 (2025)
Deeds & Mortgages	Apr 2026 Mortgage
Flood Zone	Zone X (moderate risk)
APN	`309-39-044`

Property Details

APN / Parcel Number

Primary APN	`309-39-044`

Interior

Bedrooms	4 Beds
Full Baths	3 Baths
Total Rooms	9 Rooms
Stories	1 Story
Building Area	1,729 sqft Living Area
1st Floor Area	1,729 sqft
Family Room	Family Room
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1964
Effective Year Built	Effective 1964
Architectural Style	Custom Design
Construction Type	Wood
Lot Area	6,200 sqft (0.142 acres)
Lot Dimensions	100 ft deep x 62 ft wide
Garage Area	441 sqft
Parking Spaces	2 Parking Spaces
Porch	Porch

Utilities, Heating & Cooling

Heating System	HVAC

Location & Zoning

Street Address	1536 BITTERN DR
City	SUNNYVALE
State	CA
Zip	94087-3338
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R0
Legal Description	TRACT 3562 BERKELEY SQUARE BOOK 165 PAGE 55 LOT 23
Legal Subdivision	BERKELEY SQUARE
Legal Tract	3562
Legal Lot Number	23
Jurisdiction	SANTA CLARA CA
Township / Civil Division	SAN JOSE
Census Block Group	3
Census Block	3001
Census Tract	508203

Owner

Source: Santa Clara County records · APN 309-39-044

Assessment roll updated July 27, 2026 · Last verified August 2026

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
Mailing Address	1536 BITTERN DR, SUNNYVALE, CA 94087-3338
Occupancy	Owner Occupied
Owner Type	Individual
Vesting	Unmarried Man

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	Verified Name on Deed
Last Sale	Oct 11, 2024 · Amount on Record
Deed Sale	Oct 11, 2024 · Amount on Record
Deed Document Number	202425710943
Prior Transfer Date	Apr 18, 2023
Prior Transfer Doc	0025466454
Record Updated	Sep 20, 2026

April 2026: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	SANTA CLARA CA
Recording Date	Apr 10, 2026
Property Address	1536 BITTERN DR, SUNNYVALE, CA 94087-3338
Document Number	0025970830
Instrument Date	Apr 06, 2026
Instrument	202625970830
Transaction Type	Mortgage
Record Updated	Jul 12, 2026
Title Company	E-CHICAGO TITLE, CHICAGO TITLE

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	1536 BITTERN DR, SUNNYVALE, CA 94087-3338

Mortgage

Document Number	0025970830,
Date	Apr 10, 2026
Instrument	202625970830

Lender

Name	HSBC BANK USA N A

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	360 Months
Due	May 01, 2056

Interest

Rate Type	Adjustable Rate
Rate	5.27%
Initial Type	Adjustable Rate
Adjustable	Adjustable Rate Rider
Max Rate	-1%

Tax Assessment & Valuation

Source: Santa Clara County records · Assessment roll updated July 27, 2026 · Last verified August 2026

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 and assessed market value are set for property tax purposes, not market price estimates; both are a fraction of this property's market value.

Year	Tax Bill	Assessed Value
2026		$2,881,500 (+2%) Land $2,737,374 Building $144,126
2025	$33,013.00 (+15.7%)	$2,825,000 (+2,400.64%) Land $2,683,700 Building $141,300
2024	$28,533.00 (+1,878.71%)
2023	$1,442.00 (-13.55%) Homeowner's exemption	$112,971 Land $30,614 Building $82,357
2022	$1,668.00

Flood & Wildfire

Source: FEMA National Flood Hazard Layer, Santa Clara County (06085C), as of January 18, 2026 · FEMA OpenFEMA NFIP redacted claims and policies, census block group 060855082033, as of September 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition, as of 2020 · Last verified October 2026

Flood

FEMA Flood Zone	Zone X moderate risk
500-Year Floodplain	Yes 0.2% annual chance
Flood Insurance Requirement	Not required lenders may require it
Community Rating System	Class 7 (15% premium discount)
Nearby Flood Policies	3 in force

Wildfire

Wildfire Risk	Low lower than 98% of the US · lower than 98.4% of California
Wildfire Likelihood	Under 0.01% annual chance
Exposure	Direct burnable vegetation at the parcel

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.

Internet Providers

Source: FCC Broadband Data Collection as of December 31, 2025 · Last verified October 2026

Provider	Max Down / Up (Mbps)
Xfinity Cable	2,000 / 250
Verizon Fixed Wireless	1,000 / 75
Etheric Communications, LLC. Fixed Wireless	250 / 100
Ridge Wireless Fixed Wireless	100 / 60
T-Mobile USA Fixed Wireless	100 / 20
AT&T DSL · Fiber in parts of the area	100 / 20

Based on FCC filings for 705 locations within half a mile of this property.

Drinking Water

Source: EPA Safe Drinking Water Information System, water system CA4310014, as of 2026 Q3 · EPA water system boundaries as of March 2026 · Last verified October 2026

Water System	CITY OF SUNNYVALE serves 157,566 people
Water Source	Purchased surface water from several systems
Last State Inspection	Sep 2024
Lead	Under 1 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	63 last 3 years

Results are for the whole water system as reported to EPA, not water tested at this address; lead at the tap also depends on the building's own pipes. The full violation and enforcement history is in the system's EPA record.