Collin Value

23b Grindstone Dr, Prosper, TX 75078

2,555 sqft, built 1997, in Collin Green. Appraised at $722,831 for 2026.

Collin County account 1652152

Appraised value
$722,831
Tax year 2026
Living area
2,555 sqft
$283 per sqft
Year built
1997
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 11.1% from $650,411 in 2025 to $722,831 in 2026.
  • Appraised value per square footThe current public record shows about $283 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.

  • 102 Meadow Green St, Prosper, TX 75078
    2,431 sqft | $314/sqft | built 1995 | Similar size (2,431 vs 2,555 sqft); Similar age (1995 vs 1997); Similar lot size (47,916 vs 49,907 sqft)
    $764,168
  • 101 Collin Green Dr, Prosper, TX 75078
    2,526 sqft | $280/sqft | built 1994 | Similar size (2,526 vs 2,555 sqft); Similar age (1994 vs 1997); Similar lot size (47,519 vs 49,907 sqft)
    $707,472
  • 3b Rhea Mills Cir, Prosper, TX 75078
    2,567 sqft | $268/sqft | built 1992 | Similar size (2,567 vs 2,555 sqft); Similar age (1992 vs 1997); Lot 13% smaller (43,560 vs 49,907 sqft)
    $689,109
  • 5c Rhea Mills Cir, Prosper, TX 75078
    2,719 sqft | $281/sqft | built 1998 | 6% larger (2,719 vs 2,555 sqft); Similar age (1998 vs 1997); Similar lot size (45,821 vs 49,907 sqft)
    $764,706
  • 108 Collin Ct, Prosper, TX 75078
    2,486 sqft | $306/sqft | built 1988 | Similar size (2,486 vs 2,555 sqft); Similar lot size (54,232 vs 49,907 sqft); Both have pool
    $760,238

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 11.1% in 2026 from 2025.

Appraised value by tax year, with the change from the previous year listed
Tax yearAppraised valueChangeChange %
2026$722,831+$72,420+11.1%
2025$650,411+$35,625+5.8%
2024$614,786−$36,849−5.7%
2023$651,635+$131,244+25.2%
2022$520,391+$104,831+25.2%
2021$415,560+$53,597+14.8%
2020$361,963——
6-year total+$360,868+99.7%