Collin County property record for 4121 Silverthorne St, Richardson, TX 75082
| Property Type | Single Family Home |
|---|---|
| Details | 5 bd · 4 ba · 3,307 sqft · built 2001 |
| Lot Size | 0.2 acres (8,712 sqft) |
| Owner | 2 Company Names on File |
| Last Sale | $315,600 (Oct 2004) |
| Tax Bill | $7,769 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | R-3803-00E-0280-1 |
| Primary APN | R-3803-00E-0280-1 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 5 Beds |
|---|---|
| Full Baths | 4 Baths |
| Total Rooms | 10 Rooms |
| Stories | 2 Stories |
| Building Area | 3,307 sqft Living Area |
| Gross Area | 3,990 sqft |
| 1st Floor Area | 2,135 sqft |
| 2nd Floor Area | 1,173 sqft |
| Flooring | Ceramic Tile |
| Interior Walls | Wallboard/Drywall |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 2001 |
|---|---|
| Effective Year Built | Effective 2005 |
| Exterior Material | Brick |
| Construction Type | Wood |
| Roof Type | Hip |
| Roof Material | Composition Shingle |
| Lot Area | 8,712 sqft (0.2 acres) |
| Garage Type | Attached |
| Garage Area | 526 sqft |
| Parking Spaces | 2 Parking Spaces |
| Porch | Covered Patio/Porch |
| Porch Area | 221 sqft |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Street Address | 4121 SILVERTHORNE ST |
|---|---|
| City | RICHARDSON |
| State | TX |
| Zip | 75082-3792 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | SFR |
| Legal Description | CREEK HOLLOW ESTATES PHASE V, BLK E, LOT 28 |
| Legal Subdivision | CREEK HOLLOW ESTATES PHASE V (CRC) |
| Legal Block | E |
| Legal Lot Number | 28 |
| Jurisdiction | COLLIN TX |
| Township / Civil Division | PLANO |
| Census Block Group | 1 |
| Census Block | 1025 |
| Census Tract | 32019 |
4121 Silverthorne St is owned by a company that acquired it in February 2025.
Source: Collin County records, as of March 16, 2026
| Owner of Record | 2 Company Names on File |
|---|---|
| Mailing Address | 4121 SILVERTHORNE ST, RICHARDSON, TX 75082-3792 |
| 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 | Oct 18, 2004 · Amount on File |
| Deed Sale | Oct 18, 2004 · Amount on File |
| Prior Sale | Jul 3, 2001 · Amount on File |
| Deed Document Number | 2004151660 |
| Last Transfer Date | Feb 6, 2025 |
| Transfer Doc | 0000014263 |
| Record Updated | Sep 20, 2026 |
The 2025 property tax bill for 4121 Silverthorne St was $7,769, down 11.9% from the year before.
Source: Collin County assessment roll, as of March 16, 2026
| Type | Name |
|---|---|
| State | Texas |
| County | Collin County |
| Municipality | Richardson City |
| Unified School District | Plano Independent School District (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $7,769.00 (-11.88%) Homeowner's exemption | $606,266 Land $160,000 Building $451,629 | $611,629 Land $160,000 Building $451,629 |
| 2024 | $8,816.00 | ||
| 2023 | $660,241 Land $160,000 Building $500,241 | $660,241 Land $160,000 Building $500,241 | |
| 2022 | $8,809.00 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 4121 Silverthorne St in Zone X, an area of minimal flood risk.
Source: FEMA National Flood Hazard Layer, effective October 13, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Community Rating System | Class 7 (15% premium discount) |
| Nearby Flood Policies | 4 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.
The area around 4121 Silverthorne St 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 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.
Source: EPA Safe Drinking Water Information System, as of September 2026
| Water System | CITY OF RICHARDSON serves 122,615 people · EPA ID TX0570015 |
|---|---|
| Water Source | Purchased surface water from several systems |
| Last State Inspection | May 2024 |
| Lead | 2 ppb (2026) 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, not water tested at this address; lead at the tap also depends on the building's own pipes.
Source: FCC Broadband Data Collection, based on 401 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Spectrum Cable | 1,000 / 1,000 |
| AT&T Fiber · Fixed Wireless | 1,000 / 1,000 |
| Verizon Fixed Wireless | 300 / 20 |
May also be available: Frontier, Hotwire Communications, T-Mobile.
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