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528 Romberg Dr, Sunnyvale, CA 94087 Property Records

Santa Clara County property record for 528 Romberg Dr, Sunnyvale, CA 94087

Property Summary

Property TypeMulti-Family Dwellings
Details2,447 sqft · built 1972
Lot Size0.192 acres (8,360 sqft)
Owner2 Individual Names on File
Last Sale$2,500,000 (Aug 2024)
Tax Bill$29,243 (2025)
Deeds & MortgagesApr 2019 Transfer
Mar 2017 Transfer
Flood ZoneZone X (moderate risk)
APN211-33-042

Property Details

APN / Parcel Number

Primary APN211-33-042

Interior

Stories1 Story
Building Area2,447 sqft Living Area
1st Floor Area2,447 sqft
Fireplaces1 Fireplace
FireplaceFireplace
ElevatorElevator

Exterior

Year BuiltBuilt 1972
Effective Year BuiltEffective 1972
Architectural StyleH-Shape
Construction TypeWood
Lot Area8,360 sqft (0.192 acres)
Lot Dimensions110 ft deep x 76 ft wide
Garage TypeAttached

Utilities, Heating & Cooling

Cooling SystemNone
Heating SystemHVAC

Location & Zoning

Street Address528 ROMBERG DR
CitySUNNYVALE
StateCA
Zip94087-2720
Property CategoryResidential
Property TypeResidential > Multi-Unit > Multi-Family Dwellings
Local Zoning CodeR2
Legal DescriptionNEWPORT MANOR LOT 69
Legal SubdivisionNEWPORT MANOR
Legal Tract3966
JurisdictionSANTA CLARA CA
Township / Civil DivisionSAN JOSE
Census Block Group3
Census Block3002
Census Tract508503

Owner

528 Romberg Dr, a residential property, is owned by two individuals who bought it in August 2024.

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

Owner of Record2 Individual Names on File
Mailing Address2107 TAMIE LN, SAN JOSE, CA 95130-1934
Owner TypeIndividual
VestingCommunity Property

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

Deeds, Mortgages & Sale History

DateDocument
Apr 3, 2019Quit Claim Deed, Transfer
ATTORNEY ONLY
Mar 15, 2017Quit Claim Deed, Transfer
ATTORNEY ONLY

Assessor's Deed Record

Deed Names2 Names on Deed
Last SaleAug 28, 2024 · Amount on File
Deed SaleAug 28, 2024 · Amount on File
Deed Document Number202425690948
Prior Transfer DateMar 6, 2017
Prior Transfer Doc0023603849
Record UpdatedOct 29, 2026

April 2019: Quit Claim Deed, Transfer

Document TypeQuit Claim Deed
JurisdictionSANTA CLARA CA
Recording DateApr 3, 2019
Property Address528 ROMBERG DR, SUNNYVALE, CA 94087-2720
Document Number0024148534
Instrument DateMar 26, 2019
Instrument24148534
Transaction TypeTransfer
Record UpdatedApr 12, 2019
Title CompanyATTORNEY ONLY

Transaction

Tax$0.00
Additional
  • Quitclaim

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipRevocable Trust
Address13210 N DAY RD GRASS VALLEY CA 959457940, GRASS VALLEY, CA 95945-7940

March 2017: Quit Claim Deed, Transfer

Document TypeQuit Claim Deed
JurisdictionSANTA CLARA CA
Recording DateMar 15, 2017
Property Address528 ROMBERG DR, SUNNYVALE, CA 94087-2720
Document Number0023603849
Instrument DateMar 6, 2017
Instrument23603849
Transaction TypeTransfer
Record UpdatedMar 22, 2017
Title CompanyATTORNEY ONLY

Transaction

Tax$0.00
Additional
  • Quitclaim
  • Intrafamily Transfer

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipLiving Trust
Address528 ROMBERG DR SUNNYVALE CA 940872720, SUNNYVALE, CA 94087-2720

Tax Assessment & Valuation

The 2025 property tax bill for 528 Romberg Dr was $29,243.

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

Property Jurisdictions

TypeName
StateCalifornia
CountySanta Clara County
MunicipalitySunnyvale City
Elementary School DistrictCupertino Union Elementary School District (KG - 08)
Secondary School DistrictFremont Union High School District (09 - 12)

Tax Bill & Assessment History

YearTax BillAssessed Value
2026$2,550,000 Land $2,040,000 Building $510,000
2025$29,243.00
2023$156,719 Land $33,052 Building $123,667

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.

Flood

FEMA maps place 528 Romberg Dr in Zone X, an area of moderate flood risk.

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

FEMA Flood ZoneZone X
moderate risk
500-Year FloodplainYes
0.2% annual chance
Flood Insurance RequirementNot required
lenders may require it
Community Rating SystemClass 7 (15% premium discount)
Nearby Flood Policies1 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 528 Romberg Dr 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 RiskNot 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 SystemCITY OF SUNNYVALE
serves 157,566 people · EPA ID CA4310014
Water SourcePurchased surface water from several systems
Last State InspectionSep 2024
LeadUnder 1 ppb (2023–2025)
action level 15 ppb

Violations Reported to EPA

Water QualityNone
last 10 years
Treatment and ProcedureNone
last 10 years
Monitoring and Reporting63
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 503 locations within half a mile, as of December 31, 2025

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

May also be available: GeoLinks.

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