San Joaquin County property record for 21509 Seidner Ave, Escalon, CA 95320
| Property Type | Single Family Home |
|---|---|
| Details | 2 bd · 1 ba · 870 sqft · built 1940 |
| Lot Size | 3.35 acres (145,926 sqft) |
| Owner | 2 Company Names on File |
| Tax Bill | $2,012 (2026) |
| Deeds & Mortgages | Oct 2025 Transfer |
| Flood Zone | Zone X (minimal risk) |
| APN | 249-190-170-000 |
| Primary APN | 249-190-170-000 |
|---|---|
| Alternative APN |
|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 1 Bath |
| Stories | 1 Story |
| Building Area | 870 sqft Living Area |
| 1st Floor Area | 870 sqft |
| Year Built | Built 1940 |
|---|---|
| Effective Year Built | Effective 1940 |
| Architectural Style | L-Shape |
| Construction Type | Wood |
| Lot Area | 145,926 sqft (3.35 acres) |
| Parking Spaces | 1 Parking Space |
| Cooling System | None |
|---|
| Old Parcel Number | 249-190-17 |
|---|---|
| Street Address | 21509 SEIDNER AVE |
| City | ESCALON |
| State | CA |
| Zip | 95320-9633 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | AG40 |
| Legal Description | ESCALON COLONY MAP A MAP 4 PG 40 PART OF LOT 11 |
| Legal Subdivision | ESCALON COLONY TR MAP A |
| Legal Block | 1 |
| Legal Lot Number | 11 |
| Jurisdiction | SAN JOAQUIN CA |
| Township / Civil Division | ESCALON |
| Census Block Group | 1 |
| Census Block | 1010 |
| Census Tract | 4905 |
21509 Seidner Ave is owned by a company that acquired it in November 2024.
Source: San Joaquin County records, as of October 13, 2026
| Owner of Record | 2 Company Names on File |
|---|---|
| Mailing Address | 21509 SEIDNER AVE, ESCALON, CA 95320-9633 |
| Owner Type | Company |
| Vesting | Life Tenant |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Sep 4, 2003 |
| Deed Sale | Sep 4, 2003 |
| Deed Document Number | 2003202459 |
| Last Transfer Date | Nov 13, 2024 |
| Transfer Doc | 0000117405 |
| Record Updated | Oct 29, 2026 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | SAN JOAQUIN CA |
| Recording Date | Oct 14, 2025 |
| Property Address | 21509 SEIDNER AVE, ESCALON, CA 95320-9633 |
| Document Number | 0000087620 |
| Map Reference | VOL 4 PG 40 |
| Instrument Date | Sep 17, 2025 |
| Instrument | 2025-087620 |
| Transaction Type | Transfer |
| Record Updated | Oct 27, 2025 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Living Trust |
| Address | 21509 SEIDNER AVE, ESCALON, CA 95320-9633 |
The 2026 property tax bill for 21509 Seidner Ave was $2,012, up 2.5% from the year before.
Source: San Joaquin County assessment roll, as of September 24, 2025
| Type | Name |
|---|---|
| State | California |
| County | San Joaquin County |
| Unified School District | Escalon Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $2,012.00 (+2.55%) | ||
| 2025 | $1,962.00 | $164,125 Land $115,262 Building $48,863 | |
| 2023 | $1,803.00 (+6.75%) Homeowner's exemption | $157,753 Land $110,787 Building $46,966 | $326,160 |
| 2022 | $1,689.00 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 21509 Seidner Ave in Zone X, an area of minimal flood risk.
Source: FEMA National Flood Hazard Layer, effective September 27, 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
Values are read at the parcel center point; lenders make the official flood determination.
Wildfire risk around 21509 Seidner Ave is high, ranking above 71% of the US, with a 0.3% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | High above 71% of the US · above 46% of California |
|---|---|
| Wildfire Likelihood | 0.3% annual chance |
| Exposure | Direct burnable vegetation |
Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.
Source: EPA Safe Drinking Water Information System, as of September 2026
| Water System | SOUTH SAN JOAQUIN IRRIGATION DISTRICT serves 0 people · EPA ID CA5010040 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Sep 2025 |
| 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, not water tested at this address; lead at the tap also depends on the building's own pipes. This system sells water to local utilities; the supplier billing this address may be one of them.
Source: FCC Broadband Data Collection, based on 25 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Spectrum Cable | 1,000 / 1,000 |
| ezWave Fixed Wireless | 1,000 / 200 |
| unWired Broadband Fixed Wireless | 400 / 50 |
| Verizon Fixed Wireless | 300 / 20 |
| Cal.net Fixed Wireless | 100 / 20 |
May also be available: Ayera Technologies, Matrix Broadband.
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