San Joaquin County property record for 31327 S Koster Rd, Tracy, CA 95304 · Last verified October 2025
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 2 ba · 1,622 sqft · built 1952 |
| Lot Size | 1 acres (43,560 sqft) |
| Owner | Individual Name on File |
| Last Sale | $303,000 (Apr 2013) |
| Tax Bill | $6,576 (2025) |
| Deeds & Mortgages | Aug 2017 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 255-310-180-000 |
| Primary APN | 255-310-180-000 |
|---|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 7 Rooms |
| Stories | 1 Story |
| Building Area | 1,622 sqft Living Area |
| Year Built | Built 1952 |
|---|---|
| Architectural Style | Other |
| Construction Type | Wood |
| Lot Area | 43,560 sqft (1 acres) |
| Garage Type | Mixed |
| Garage Area | 367 sqft |
| Parking Spaces | 2 Parking Spaces |
| Cooling System | Central |
|---|---|
| Heating System | Floor/Wall Furnace |
| Street Address | 31327 S KOSTER RD |
|---|---|
| City | TRACY |
| State | CA |
| Zip | 95304-8824 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | REDRAW 901115 FR ORIG APN 255110215 |
| Legal Lot Number | 193 |
| Jurisdiction | SAN JOAQUIN CA |
| Township / Civil Division | TRACY |
| Census Block Group | 1 |
| Census Block | 1005 |
| Census Tract | 5503 |
Source: San Joaquin County records · APN 255-310-180-000
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 | 31327 S KOSTER RD, TRACY, CA 95304-8824 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Sale | Apr 26, 2013 · Amount on Record |
| Deed Sale | Apr 26, 2013 · Amount on Record |
| Prior Sale | Apr 26, 2013 |
| Deed Document Number | 0000055595 |
| Last Transfer Date | Feb 24, 2025 |
| Transfer Doc | 0000014326 |
| Record Updated | Jun 07, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | SAN JOAQUIN CA |
| Property Address | 31327 S KOSTER RD, TRACY, CA 95304-8824 |
| Transaction Type | Mortgage |
| Record Updated | Aug 03, 2021 |
| Title Company | OLD REPUBLIC TITLE CO CONCOR |
| Name | Verified Name |
|---|
| Document Number | 0000087332 |
|---|---|
| Date | Aug 01, 2017 |
| Instrument | 2017-087332 |
| Name | ROYAL PACIFIC FUNDING CORP |
|---|---|
| Type | Funding / Finance Company |
| Address | COSTA MESA, CA 92626 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 360 Months |
| Due | Aug 01, 2047 |
Source: San Joaquin County records · Assessment roll updated July 1, 2025 · Last verified October 2025
| Type | Name |
|---|---|
| State | California |
| County | San Joaquin County |
| Secondary School District | Tracy Unified School District (9-12) (09 - 12) |
| Elementary School District | New Jerusalem Elementary School District (KG - 08) |
Assessed value is set for property tax purposes and is not a market price estimate.
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2025 | $6,576.00 (+42.09%) Homeowner's exemption | $373,110 (+4.04%) Land $147,766 Building $225,344 |
| 2023 | $4,628.00 (+19.03%) Homeowner's exemption | $358,624 Land $142,029 Building $216,595 |
| 2022 | $3,888.00 |
Source: FEMA National Flood Hazard Layer, San Joaquin County (06077C), updated September 27, 2026 · FEMA OpenFEMA NFIP redacted claims and policies, census block group 060770055031, refreshed September 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026
| FEMA Flood Zone | Zone X |
|---|---|
| Special Flood Hazard Area | No |
| Flood Hazard | Minimal |
| 500-Year Floodplain | No |
| Community Rating System | Class 7 (15% premium discount) |
| Nearby Flood Policies | 3 in force |
| Wildfire Risk | Not rated no burnable land in reach |
|---|---|
| Wildfire Likelihood | Negligible |
| 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, availability as of December 31, 2025 · Published October 2026 · based on 57 locations within about half a mile of this property
| Provider | Technology | Download / Upload (Mbps) |
|---|---|---|
| ezWave | Fixed Wireless (unlicensed) | 1,000 / 200 |
| Zinnia Networks | Fixed Wireless (unlicensed) | 400 / 80 |
| UnWired Broadband Holding | Fixed Wireless (licensed-by-rule) | 400 / 50 |
| Verizon | Fixed Wireless | 300 / 20 |
| T-Mobile USA | Fixed Wireless | 100 / 20 |
| Cal.net | Fixed Wireless (unlicensed) | 100 / 20 |
| AT&T | Fixed Wireless | 25 / 3 |
May also be available at this address: Cal.net. Availability varies by address; speeds are provider-advertised maximums, not measured.
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