1013 Heatherstone Ave, Sunnyvale, CA 94087 Property Records

Santa Clara County property record for 1013 Heatherstone Ave, Sunnyvale, CA 94087

Property Summary

Property Type	Single Family Home
Details	3 bd · 2 ba · 1,560 sqft · built 1954
Lot Size	0.184 acres (7,998 sqft)
Owner	2 Company Names on Record
Tax Bill	$1,178 (2025)
Flood Zone	Zone X (moderate risk)
APN	`198-29-018`

Property Details

APN / Parcel Number

Primary APN	`198-29-018`

Interior

Bedrooms	3 Beds
Full Baths	2 Baths
Total Rooms	7 Rooms
Stories	1 Story
Building Area	1,560 sqft Living Area
1st Floor Area	1,560 sqft
Family Room	Family Room
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1954
Effective Year Built	Effective 1954
Architectural Style	L-Shape
Construction Type	Wood
Lot Area	7,998 sqft (0.184 acres)
Lot Dimensions	129 ft deep x 62 ft wide
Garage Area	462 sqft
Parking Spaces	2 Parking Spaces
Porch	Porch

Utilities, Heating & Cooling

Heating System	HVAC

Location & Zoning

Street Address	1013 HEATHERSTONE AVE
City	SUNNYVALE
State	CA
Zip	94087-1617
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R0
Legal Lot Number	15-17
Jurisdiction	SANTA CLARA CA
Township / Civil Division	SAN JOSE
Census Block Group	1
Census Block	1005
Census Tract	508401

Owner

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

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

Owner of Record	2 Company Names on Record
Mailing Address	1013 HEATHERSTONE AVE, SUNNYVALE, CA 94087-1617
Occupancy	Owner Occupied
Owner Type	Company
Vesting	Trust

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Transfer Date	May 1, 2002
Transfer Doc	0016305870
Record Updated	Sep 20, 2026

Tax Assessment & Valuation

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

Property Jurisdictions

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

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value
2026		$97,958 (+2%) Land $31,069 Building $66,889
2025	$1,178.00 (+4.9%) Homeowner's exemption	$96,038 (+4.04%) Land $30,460 Building $65,578
2023	$1,123.00 (-3.19%) Homeowner's exemption	$92,311 Land $29,278 Building $63,033
2022	$1,160.00

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

Flood

Source: FEMA National Flood Hazard Layer, effective January 18, 2026

FEMA Flood Zone	Zone X moderate risk
500-Year Floodplain	Yes 0.2% annual chance
Flood Insurance Requirement	Not required lenders may require it

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

Wildfire

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	CITY OF SUNNYVALE serves 157,566 people · EPA ID CA4310014
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, 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 841 locations within half a mile, as of December 31, 2025

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