Alameda County property record for 4800 Prospero Ct, Fremont, CA 94555
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 2 ba · 1,876 sqft · built 1981 |
| Lot Size | 0.178 acres (7,782 sqft) |
| Owner | Individual Name on File |
| Last Sale | $1,866,000 (Nov 2021) |
| Tax Bill | $24,024 (2025) |
| Deeds & Mortgages | Nov 2022 Line of Credit Nov 2021 Sale & Mortgage + 3 more |
| Flood Zone | Zone X (minimal risk) |
| APN | 543-422-64 |
| Primary APN | 543-422-64 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 7 Rooms |
| Stories | 1 Story |
| Building Area | 1,876 sqft Living Area |
| Year Built | Built 1981 |
|---|---|
| Effective Year Built | Effective 1982 |
| Architectural Style | Other |
| Construction Type | Wood |
| Lot Area | 7,782 sqft (0.178 acres) |
| Street Address | 4800 PROSPERO CT |
|---|---|
| City | FREMONT |
| State | CA |
| Zip | 94555-2055 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | TRACT 4315 LOT 44 |
| Jurisdiction | ALAMEDA CA |
| Township / Civil Division | FREMONT |
| Census Block Group | 3 |
| Census Block | 3002 |
| Census Tract | 441521 |
Source: Alameda County records · APN 543-422-64
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 | 4800 PROSPERO CT, FREMONT, CA 94555-2055 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Date | Document |
|---|---|
| Nov 30, 2022 | Deed of Trust, Mortgage · Line of Credit US BANK NA |
| Nov 08, 2021 | Grant Deed, Transfer · Conventional Mortgage FLAGSTAR BANK FSB |
| Oct 18, 2019 | Quit Claim Deed, Transfer NOT AVAILABLE |
| Aug 01, 2019 | Deed of Trust, Mortgage BANK OF AMERICA |
| Nov 01, 2017 | Deed of Trust, Mortgage BANK OF AMERICA |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Sale | Nov 08, 2021 · Amount on Record |
| Deed Sale | Nov 08, 2021 · Amount on Record |
| Prior Sale | Oct 18, 2019 |
| Deed Document Number | 2021365680 |
| Record Updated | Jun 08, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Property Address | 4800 PROSPERO CT, FREMONT, CA 94555-2055 |
| Transaction Type | Mortgage |
| Record Updated | Dec 26, 2022 |
| Title Company | RADIAN SETTLEMENT SVCS INC |
| Name | Verified Name |
|---|---|
| Address | 4800 PROSPERO CT, FREMONT, CA 94555-2055 |
| Document Number | 0000191425 |
|---|---|
| Date | Nov 30, 2022 |
| Instrument | 2022191425 |
| Name | US BANK NA |
|---|---|
| Type | Bank |
| Address | CINCINNATI, OH 45202 |
| Type | Line of Credit |
|---|---|
| Amount | Amount Recorded |
| Term | 360 Months |
| Due | Nov 16, 2052 |
| Rate Type | Adjustable Rate |
|---|---|
| Change Frequency | Monthly |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Recording Date | Nov 08, 2021 |
| Property Address | 4800 PROSPERO CT, FREMONT, CA 94555-2055 |
| Document Number | 0000365680 |
| Map Reference | MB 118 PG 7 |
| Instrument Date | Nov 02, 2021 |
| Instrument | 2021365680 |
| Transaction Type | Transfer |
| Record Updated | Nov 26, 2021 |
| Title Company | OLD REPUBLIC TITLE, OLD REPUBLIC TITLE COMPANY |
| Amount | Amount Recorded |
|---|---|
| Downpayment | Downpayment on File |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $0.00 |
| Amount Accuracy | Rounded by County |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Community Property with Right of Survivorship |
| Address | 4800 PROSPERO CT, FREMONT, CA 94555-2055 |
| Document Number | 0000365681 |
|---|---|
| Date | Nov 08, 2021 |
| Instrument | 2021365681 |
| Name | FLAGSTAR BANK FSB |
|---|---|
| Type | Bank |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | Dec 01, 2051 |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Recording Date | Oct 18, 2019 |
| Property Address | 4800 PROSPERO CT, FREMONT, CA 94555-2055 |
| Document Number | 0000212831 |
| Instrument Date | Sep 11, 2019 |
| Instrument | 212831 |
| Transaction Type | Transfer |
| Record Updated | Nov 07, 2019 |
| Title Company | NOT AVAILABLE |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Full Value |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Revocable Trust |
| Address | 4800 PROSPERO CT FREMONT CA 945552055, FREMONT, CA 94555-2055 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Property Address | 4800 PROSPERO CT, FREMONT, CA 94555-2055 |
| Document Number | 0000152634 |
| Instrument Date | Aug 01, 2019 |
| Transaction Type | Mortgage |
| Record Updated | Aug 27, 2019 |
| Title Company | TITLE CONNECT LLC |
| Name | Verified Name |
|---|---|
| Relationship | Community Property |
| Address | 4800 PROSPERO CT FREMONT CA 945552055, FREMONT, CA 94555-2055 |
| Document Number | 0000152634 |
|---|---|
| Date | Aug 07, 2019 |
| Instrument | 152634 |
| Name | BANK OF AMERICA |
|---|---|
| Type | Bank |
| Address | CHARLOTTE, NC 28255 |
| Amount | Amount Recorded |
|---|---|
| Term | 360 Months |
| Due | Aug 06, 2049 |
| Rate Type | Adjustable Rate |
|---|---|
| Rate | 3% |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Property Address | 4800 PROSPERO CT, FREMONT, CA 94555-2055 |
| Document Number | 0000255458 |
| Instrument Date | Nov 01, 2017 |
| Transaction Type | Mortgage |
| Record Updated | Aug 28, 2018 |
| Title Company | FIRST AMERICAN TITLE |
| Name | Verified Name |
|---|---|
| Relationship | Community Property |
| Address | 4800 PROSPERO CT FREMONT CA 945552055, FREMONT, CA 94555-2055 |
| Document Number | 0000255458 |
|---|---|
| Date | Nov 17, 2017 |
| Instrument | 255458 |
| Name | BANK OF AMERICA |
|---|---|
| Type | Bank |
| Address | CHARLOTTE, NC 28255 |
| Amount | Amount Recorded |
|---|---|
| Term | 360 Months |
| Due | Nov 16, 2047 |
| Rate Type | Adjustable Rate |
|---|---|
| Rate | 3.12% |
Source: Alameda County records · Assessment roll updated July 1, 2025 · Last verified October 2025
| Type | Name |
|---|---|
| State | California |
| County | Alameda County |
| Municipality | Fremont City |
| Unified School District | Fremont Unified School District (KG - 12) |
Assessed value is set for property tax purposes and is not a market price estimate.
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2025 | $24,024.00 (+8.06%) | $1,980,198 (+4.04%) Land $594,059 Building $1,386,139 |
| 2023 | $22,232.00 | $1,903,320 Land $570,996 Building $1,332,324 |
Source: FEMA National Flood Hazard Layer, Alameda County (06001C), as of May 25, 2026 · FEMA OpenFEMA NFIP redacted claims and policies, census block group 060014415213, as of September 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition, as of 2020 · Last verified October 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Nearest Special Flood Hazard Area | Zone A, within 500 ft |
| Flood Insurance Requirement | Not required lenders may require it |
| Community Rating System | Class 8 (10% premium discount) |
| Nearby Flood Policies | 1 in force |
| Wildfire Risk | Low lower than 80% of the US · lower than 88% of California |
|---|---|
| Wildfire Likelihood | 0.01% annual chance |
| Exposure | None beyond ember reach |
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.
Source: FCC Broadband Data Collection as of December 31, 2025 · Last verified October 2026
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
| Robinson Hardware and Software Solutions Fixed Wireless | 1,000 / 1,000 |
| Tekify Fixed Wireless | 580 / 125 |
| Verizon Fixed Wireless | 300 / 20 |
| Etheric Communications, LLC. Fixed Wireless | 250 / 100 |
| Sail Internet Holdings Fixed Wireless | 200 / 100 |
| T-Mobile USA Fixed Wireless | 100 / 20 |
May also be available: AT&T.
Based on FCC filings for 777 locations within half a mile of this property.
Source: EPA Safe Drinking Water Information System, water system CA0110001, as of 2026 Q3 · EPA water system boundaries as of March 2026 · Last verified October 2026
| Water System | ALAMEDA COUNTY WATER DISTRICT serves 344,000 people |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Nov 2025 |
| Lead | Under 1 ppb (2022–2024) action level 15 ppb |
| 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 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.
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