Collin County property record for 321 Saint Mark Ln, Prosper, TX 75078
| Property Type | Single Family Home |
|---|---|
| Details | 2,847 sqft · built 2015 |
| Lot Size | 0.25 acres (10,890 sqft) |
| Owner | 2 Individual Names on File |
| Tax Bill | $9,750 (2024) |
| Flood Zone | Zone X (minimal risk) |
| APN | R-10611-00M-0100-1 |
| Primary APN | R-10611-00M-0100-1 |
|---|---|
| Alternative APN |
|
| Stories | 1 Story |
|---|---|
| Building Area | 2,847 sqft Living Area |
| Gross Area | 3,441 sqft |
| 1st Floor Area | 2,847 sqft |
| Year Built | Built 2015 |
|---|---|
| Exterior Material | Brick |
| Construction Type | Wood Frame |
| Lot Area | 10,890 sqft (0.25 acres) |
| Garage Type | Attached |
| Garage Area | 594 sqft |
| Pool Area | 440 sqft |
| Porch | Porch |
| Porch Area | 509 sqft |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Account Number | 2707087 |
|---|---|
| Street Address | 321 SAINT MARK LN |
| City | PROSPER |
| State | TX |
| Zip | 75078-0647 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | TANNERS MILL PHASE 1B (CPR), BLK M, LOT 10 |
| Legal Subdivision | TANNERS MILL PHASE 1B (CPR) |
| Legal Phase | 1B |
| Legal Block | M |
| Legal Lot Number | 10 |
| Jurisdiction | COLLIN TX |
| Township / Civil Division | CELINA |
| Census Block Group | 1 |
| Census Block | 1013 |
| Census Tract | 30304 |
Source: Collin County records · APN R-10611-00M-0100-1
Assessment roll updated August 1, 2025 · Last verified November 2025
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 321 SAINT MARK LN, PROSPER, TX 75078-0647 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Sale | Oct 03, 2016 |
| Deed Sale | Oct 03, 2016 |
| Deed Document Number | 20161003001333230 |
| Record Updated | Jun 08, 2026 |
Source: Collin County records · Assessment roll updated August 1, 2025 · Last verified November 2025
| Type | Name |
|---|---|
| State | Texas |
| County | Collin County |
| Municipality | Prosper Town |
| Unified School District | Prosper Independent School District (PK - 12) |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $740,189 (-0.55%) Land $200,000 Building $540,189 | $740,189 (-0.55%) Land $200,000 Building $540,189 | |
| 2024 | $9,750.00 (+0.25%) | ||
| 2023 | $744,247 Land $185,250 Building $558,997 | $744,247 Land $185,250 Building $558,997 | |
| 2022 | $9,726.00 |
Source: FEMA National Flood Hazard Layer as of October 13, 2026 · FEMA NFIP claims and policies as of September 2026 · USDA Forest Service Wildfire Risk to Communities as of 2024 · Last verified October 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Nearby Flood Policies | 1 in force |
| Wildfire Risk | Not rated no burnable land within 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) |
|---|---|
| Grayson Collin Electric Cooperative Fiber | 1,000 / 1,000 |
| Optimum Communications Fiber · Cable | 940 / 940 |
| Verizon Fixed Wireless | 300 / 20 |
| AMG Technology Investment Group Fixed Wireless | 200 / 50 |
| ElektraFi Fixed Wireless | 100 / 20 |
| T-Mobile USA Fixed Wireless | 100 / 20 |
| AT&T Fixed Wireless · DSL · Fiber in parts of the area | 100 / 20 |
Based on FCC filings for 247 locations within half a mile of this property.
Source: EPA Safe Drinking Water Information System as of 2026 Q3 · EPA water system boundaries as of March 2026 · Last verified October 2026
| Water System | TOWN OF PROSPER serves 42,598 people |
|---|---|
| Water Source | Purchased surface water from NORTH TEXAS MWD WYLIE WTP |
| Last State Inspection | Apr 2025 |
| Lead | 2 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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