Collin Value

661 Sibyl Ln, Prosper, TX 75078

4,434 sqft, built 2013, in Crestview At Prosper Phase 2. Appraised at $919,356 for 2026.

Collin County account 2675301

Appraised value
$919,356
Tax year 2026
Living area
4,434 sqft
$207 per sqft
Year built
2013
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, Crestview At Prosper Phase 2, 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 3.5% from $952,296 in 2025 to $919,356 in 2026.
  • Appraised value per square footThe current public record shows about $207 per square foot before any comparable-property adjustments.
  • Nearby comparison areaThis page starts the equity review with public records for the Crestview At Prosper Phase 2 neighborhood and ZIP 75078.
  • Neighborhood value signalAmong 75 residential records in the same neighborhood, the average appraised value is about $214 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about -3.5% on average.

Comparable assessments

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

  • 821 Jessica Ct, Prosper, TX 75078
    4,296 sqft | $217/sqft | built 2017 | Similar size (4,296 vs 4,434 sqft); Similar age (2017 vs 2013); Similar lot size (16,774 vs 16,755 sqft)
    $934,250
  • 881 Derick Ln, Prosper, TX 75078
    4,289 sqft | $220/sqft | built 2016 | Similar size (4,289 vs 4,434 sqft); Similar age (2016 vs 2013); Similar lot size (16,568 vs 16,755 sqft)
    $945,208
  • 941 Jessica Ln, Prosper, TX 75078
    4,462 sqft | $222/sqft | built 2014 | Similar size (4,462 vs 4,434 sqft); Similar age (2014 vs 2013); Similar lot size (15,286 vs 16,755 sqft)
    $990,539
  • 820 Derick Ln, Prosper, TX 75078
    4,433 sqft | $213/sqft | built 2017 | Similar size (4,433 vs 4,434 sqft); Similar age (2017 vs 2013); Similar lot size (15,251 vs 16,755 sqft)
    $944,060
  • 1041 Jessica Ln, Prosper, TX 75078
    4,351 sqft | $216/sqft | built 2013 | Similar size (4,351 vs 4,434 sqft); Built same year (2013); Lot 10% smaller (15,002 vs 16,755 sqft)
    $939,488

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.

  • 4020 Chama St, Prosper, TX 75078
    August-13-2026 | 4,403 sqft | $261/sqft | built 2011 | Similar size (4,403 sqft); Similar age (2011); Sold after the valuation date
    $1,149,000
  • 841 Wind Brook Ln, Prosper, TX 75078
    September-16-2026 | 4,382 sqft | $156/sqft | built 2005 | Similar size (4,382 sqft); Moderate age difference (8 years older); Sold after the valuation date
    $684,999
  • 1640 Stillhouse Hollow Dr, Prosper, TX 75078
    July-24-2026 | 4,472 sqft | $240/sqft | built 2014 | Similar size (4,472 sqft); Similar age (2014); Sold after the valuation date
    $1,075,000
  • 1600 Wichita Dr, Prosper, TX 75078
    October-1-2026 | 4,637 sqft | $216/sqft | built 2018 | Similar size (4,637 sqft); Moderate age difference (5 years newer); Sold after the valuation date
    $1,000,000
  • 961 Deer Run Ln, Prosper, TX 75078
    August-12-2026 | 4,684 sqft | $165/sqft | built 2012 | 6% size difference (4,684 sqft); Similar age (2012); Sold after the valuation date
    $775,000

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 3.5% in 2026 from 2025.

Appraised value by tax year, with the change from the previous year listed
Tax yearAppraised valueChangeChange %
2026$919,356−$32,940−3.5%
2025$952,296−$64,174−6.3%
2024$1,016,470+$30,628+3.1%
2023$985,842+$133,548+15.7%
2022$852,294+$210,746+32.8%
2021$641,548+$29,406+4.8%
2020$612,142——
6-year total+$307,214+50.2%