Collin Value

17c Grindstone Dr, Prosper, TX 75078

2,239 sqft, built 1993, in Collin Green. Appraised at $585,665 for 2026.

Collin County account 1652394

Appraised value
$585,665
Tax year 2026
Living area
2,239 sqft
$262 per sqft
Year built
1993
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 decreased 1.6% from $594,922 in 2025 to $585,665 in 2026.
  • Appraised value per square footThe current public record shows about $262 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.

  • 34a Rhea Mills Cir, Prosper, TX 75078
    2,188 sqft | $308/sqft | built 1990 | Similar size (2,188 vs 2,239 sqft); Similar age (1990 vs 1993); Similar lot size (65,989 vs 61,494 sqft)
    $674,383
  • 16c Grindstone Dr, Prosper, TX 75078
    2,416 sqft | $254/sqft | built 1996 | 8% larger (2,416 vs 2,239 sqft); Similar age (1996 vs 1993); Similar lot size (61,280 vs 61,494 sqft)
    $614,533
  • 33a Rhea Mills Cir, Prosper, TX 75078
    2,140 sqft | $316/sqft | built 1992 | Similar size (2,140 vs 2,239 sqft); Similar age (1992 vs 1993); Similar lot size (66,965 vs 61,494 sqft)
    $676,766
  • 21b Grindstone Dr, Prosper, TX 75078
    2,115 sqft | $293/sqft | built 1998 | 6% smaller (2,115 vs 2,239 sqft); Similar age (1998 vs 1993); Similar lot size (64,817 vs 61,494 sqft)
    $619,251
  • 7c Rhea Mills Cir, Prosper, TX 75078
    2,134 sqft | $339/sqft | built 1993 | Similar size (2,134 vs 2,239 sqft); Built same year (1993); Lot 13% smaller (53,413 vs 61,494 sqft)
    $723,730

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

Down 1.6% in 2026 from 2025.

Appraised value by tax year, with the change from the previous year listed
Tax yearAppraised valueChangeChange %
2026$585,665−$9,257−1.6%
2025$594,922+$9,948+1.7%
2024$584,974−$34,538−5.6%
2023$619,512+$77,157+14.2%
2022$542,355+$135,202+33.2%
2021$407,153+$33,733+9.0%
2020$373,420——
6-year total+$212,245+56.8%