Collin Value

861 Allen St, Prosper, TX 75078

3,483 sqft, built 2017, in Crestview At Prosper Phase 2. Appraised at $785,308 for 2026.

Collin County account 2708500

Appraised value
$785,308
Tax year 2026
Living area
3,483 sqft
$225 per sqft
Year built
2017
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 $813,971 in 2025 to $785,308 in 2026.
  • Appraised value per square footThe current public record shows about $225 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.

  • 820 Jessica Ct, Prosper, TX 75078
    3,606 sqft | $219/sqft | built 2017 | Similar size (3,606 vs 3,483 sqft); Built same year (2017); Lot 11% larger (17,764 vs 16,029 sqft)
    $789,500
  • 860 Allen St, Prosper, TX 75078
    3,597 sqft | $218/sqft | built 2015 | Similar size (3,597 vs 3,483 sqft); Similar age (2015 vs 2017); Lot 13% smaller (13,872 vs 16,029 sqft)
    $782,656
  • 520 Michelle Ct, Prosper, TX 75078
    3,614 sqft | $222/sqft | built 2012 | Similar size (3,614 vs 3,483 sqft); Similar age (2012 vs 2017); Similar lot size (16,538 vs 16,029 sqft)
    $804,000
  • 641 Logans Way Dr, Prosper, TX 75078
    3,821 sqft | $212/sqft | built 2014 | 10% larger (3,821 vs 3,483 sqft); Similar age (2014 vs 2017); Similar lot size (15,851 vs 16,029 sqft)
    $809,618
  • 821 Allen St, Prosper, TX 75078
    3,578 sqft | $224/sqft | built 2015 | Similar size (3,578 vs 3,483 sqft); Similar age (2015 vs 2017); Lot 14% smaller (13,728 vs 16,029 sqft)
    $801,141

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.

  • 2200 Weathertop Ln, Prosper, TX 75078
    June-22-2026 | 3,462 sqft | $303/sqft | built 2021 | Similar size (3,462 sqft); Moderate age difference (4 years newer); Sold after the valuation date
    $1,049,000
  • 500 Lake Trail Ln, Prosper, TX 75078
    September-18-2026 | 3,412 sqft | $227/sqft | built 2017 | Similar size (3,412 sqft); Similar age (2017); Sold after the valuation date
    $775,000
  • 770 Evening Sun Dr, Prosper, TX 75078
    August-31-2026 | 3,759 sqft | $205/sqft | built 2013 | 8% size difference (3,759 sqft); Moderate age difference (4 years older); Sold after the valuation date
    $770,000
  • 361 Frasier Ln, Prosper, TX 75078
    August-3-2026 | 3,486 sqft | $287/sqft | built 2016 | Similar size (3,486 sqft); Similar age (2016); Sold after the valuation date
    $1,000,000
  • 971 Elk Ridge Rd, Prosper, TX 75078
    June-26-2026 | 3,471 sqft | $303/sqft | built 2007 | Similar size (3,471 sqft); Moderate age difference (10 years older); Sold after the valuation date
    $1,050,000

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$785,308−$28,663−3.5%
2025$813,971+$102,858+14.5%
2024$711,113−$126,612−15.1%
2023$837,725+$113,566+15.7%
2022$724,159+$184,283+34.1%
2021$539,876+$27,282+5.3%
2020$512,594——
6-year total+$272,714+53.2%