Collin County property record for 21B Grindstone Dr, Prosper, TX 75078
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2 ba · 2,115 sqft · built 1998 |
| Lot Size | 1.48 acres (64,817 sqft) |
| Owner | 2 Owner Names on Record |
| Tax Bill | $8,007 (2024) |
| Flood Zone | Zone X (minimal risk) |
| APN | R-1567-002-0210-1 |
| Primary APN | R-1567-002-0210-1 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 7 Rooms |
| Stories | 1 Story |
| Building Area | 2,115 sqft Living Area |
| Gross Area | 2,728 sqft |
| 1st Floor Area | 2,114 sqft |
| Interior Walls | Wallboard/Drywall |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1998 |
|---|---|
| Effective Year Built | Effective 2005 |
| Exterior Material | Brick |
| Construction Type | Frame |
| Foundation Type | Slab (Mat/Raft) |
| Roof Type | Hip |
| Roof Material | Composition Shingle |
| Lot Area | 64,817 sqft (1.48 acres) |
| Garage Type | Attached |
| Garage Area | 614 sqft |
| Parking Spaces | 2 Parking Spaces |
| Porch | Covered Porch |
| Porch Area | 59 sqft |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Account Number | 1652134 |
|---|---|
| Street Address | 21B GRINDSTONE DR |
| City | PROSPER |
| State | TX |
| Zip | 75078-9134 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | RHEA MILLS ESTATES (CPR), BLK B, LOT 21 |
| Legal Subdivision | RHEA MILLS ESTATES (CPR) |
| Legal Block | B |
| Legal Lot Number | 21 1 |
| Jurisdiction | COLLIN TX |
| Township / Civil Division | CELINA |
| Census Block Group | 2 |
| Census Block | 2031 |
| Census Tract | 30302 |
Source: Collin County records, as of October 23, 2025
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | 2 Owner Names on Record |
|---|---|
| Mailing Address | 21 GRINDSTONE DR # B, B, PROSPER, TX 75078 |
| Occupancy | Owner Occupied |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Dec 14, 1998 |
| Deed Sale | Dec 14, 1998 |
| Prior Sale | May 28, 1998 |
| Deed Document Number | 98-0139111 |
| Deed Book / Page | R1567 |
| Record Updated | Jun 8, 2026 |
Source: Collin County assessment roll, as of August 1, 2025
| Type | Name |
|---|---|
| State | Texas |
| County | Collin County |
| Municipality | Prosper Town |
| Unified School District | Prosper Independent School District (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $624,042 (-4.66%) Land $275,280 Building $348,762 | $624,042 (-4.66%) Land $275,280 Building $348,762 | |
| 2024 | $8,007.00 (-1.09%) | ||
| 2023 | $654,536 Land $215,760 Building $438,776 | $654,536 Land $215,760 Building $438,776 | |
| 2022 | $8,095.00 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
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 |
| Nearby Flood Policies | 8 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.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 65% of the US · lower than 90% of Texas |
|---|---|
| Wildfire Likelihood | 0.04% annual chance |
| Exposure | None beyond 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 | TOWN OF PROSPER serves 42,598 people · EPA ID TX0430009 |
|---|---|
| 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, 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 98 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Optimum Cable · Fiber in parts of the area | 940 / 35 |
| Verizon Fixed Wireless | 300 / 20 |
| ElektraFi Fixed Wireless | 100 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: Astound Broadband, AT&T.
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