Collin Value

16b Grindstone Dr, Prosper, TX 75078

1,746 sqft, built 1985, in Collin Green. Appraised at $635,008 for 2026.

Collin County account 1652081

Appraised value
$635,008
Tax year 2026
Living area
1,746 sqft
$364 per sqft
Year built
1985
Homestead
Yes
Owner-occupied exemption on file

Compare this assessment

Start with the county value and property facts, then review appraisal comps, recent sales, and prior-year changes to decide whether the assessment is worth challenging. The comps on this page are free to review; email sign-in is only used to save a printable report.

For nearby context, browse ZIP 75078, Collin Green, Celina, and Prosper assessment pages.

Protest deadline

The 2026 protest deadline was . The 2027 protest deadline is . 2027 notices usually arrive in April.

Deadline rule: May 15, or 30 days after your notice of appraised value is mailed, whichever is later. A deadline on a weekend or holiday moves to the next business day. Evidence is reviewed by the Appraisal Review Board (ARB). Dates checked against the official source.

Assessment snapshot

These public CCAD records highlight what may be worth checking before you file.

  • Assessment changeThe appraised value increased 13.9% from $557,448 in 2025 to $635,008 in 2026.
  • Appraised value per square footThe current public record shows about $364 per square foot before any comparable-property adjustments.
  • Nearby comparison areaThis page starts the equity review with public records for the Collin Green neighborhood and ZIP 75078.
  • Neighborhood value signalAmong 122 residential records in the same neighborhood, the average appraised value is about $318 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about +8.7% on average.

Comparable assessments

Similar public appraisal records selected for this property's equity comparison.

  • 46a Rhea Mills Cir, Prosper, TX 75078
    1,731 sqft | $302/sqft | built 1992 | Similar size (1,731 vs 1,746 sqft); Similar lot size (49,057 vs 49,153 sqft); Same neighborhood
    $522,000
  • 104 Collin Green Dr, Prosper, TX 75078
    1,669 sqft | $365/sqft | built 1987 | Similar size (1,669 vs 1,746 sqft); Similar age (1987 vs 1985); Similar lot size (50,007 vs 49,153 sqft)
    $609,489
  • 106 Collin Green Dr, Prosper, TX 75078
    1,668 sqft | $357/sqft | built 1987 | Similar size (1,668 vs 1,746 sqft); Similar age (1987 vs 1985); Similar lot size (50,007 vs 49,153 sqft)
    $594,821
  • 44a Rhea Mills Cir, Prosper, TX 75078
    1,822 sqft | $379/sqft | built 1984 | Similar size (1,822 vs 1,746 sqft); Similar age (1984 vs 1985); Similar lot size (47,071 vs 49,153 sqft)
    $690,081
  • 102 Collin Ct, Prosper, TX 75078
    1,834 sqft | $362/sqft | built 1988 | 5% larger (1,834 vs 1,746 sqft); Similar age (1988 vs 1985); Similar lot size (47,393 vs 49,153 sqft)
    $664,223

Recent comparable sales

Sales selected by similarity to the subject property. Texas is a non-disclosure state, so these MLS-listed sales are supplemental evidence.

Public appraisal comparison for 2026. Prepared . Appraisal source: Collin Central Appraisal District. Sales data checked in this snapshot: . Matches consider available size, age, location and property characteristics. How comparisons work.

Value history

Up 13.9% in 2026 from 2025.

Appraised value by tax year, with the change from the previous year listed
Tax yearAppraised valueChangeChange %
2026$635,008+$77,560+13.9%
2025$557,448+$10,830+2.0%
2024$546,618−$33,224−5.7%
2023$579,842+$80,380+16.1%
2022$499,462+$120,211+31.7%
2021$379,251+$65,849+21.0%
2020$313,402——
6-year total+$321,606+102.6%