Collin Value

8717 Autumn Lake Trl, Mckinney, TX 75071

3,297 sqft, built 2021, in Trinity Falls Planning Unit 3 Phase 3B. Appraised at $860,426 for 2026.

Collin County account 2803490

Appraised value
$860,426
Tax year 2026
Living area
3,297 sqft
$261 per sqft
Year built
2021
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 75071, Trinity Falls Planning Unit 3 Phase 3B, and McKinney 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 2.1% from $878,770 in 2025 to $860,426 in 2026.
  • Appraised value per square footThe current public record shows about $261 per square foot before any comparable-property adjustments.
  • Nearby comparison areaThis page starts the equity review with public records for the Trinity Falls Planning Unit 3 Phase 3B neighborhood and ZIP 75071.
  • Neighborhood value signalAmong 193 residential records in the same neighborhood, the average appraised value is about $235 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about -4.0% on average.

Comparable assessments

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

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.

  • 1420 Milton Ln, Mckinney, TX 75071
    September-17-2026 | 3,444 sqft | $139/sqft | built 2022 | Similar size (3,444 sqft); Similar age (2022); Sold after the valuation date
    $477,855
  • 4700 Starlight Dr, Mckinney, TX 75071
    September-21-2026 | 3,205 sqft | $192/sqft | built 2026 | Similar size (3,205 sqft); Moderate age difference (5 years newer); Sold after the valuation date
    $614,490
  • 7905 Lavaca River Dr, Mckinney, TX 75071
    August-31-2026 | 3,262 sqft | $193/sqft | built 2016 | Similar size (3,262 sqft); Moderate age difference (5 years older); Sold after the valuation date
    $629,000
  • 324 Bay Laurel Rd, Mckinney, TX 75071
    September-17-2026 | 3,396 sqft | $206/sqft | built 2026 | Similar size (3,396 sqft); Moderate age difference (5 years newer); Sold after the valuation date
    $699,900
  • 6204 Chickney Dr, Mckinney, TX 75071
    September-29-2026 | 3,100 sqft | $138/sqft | built 2026 | 6% size difference (3,100 sqft); Moderate age difference (5 years newer); Sold after the valuation date
    $429,056

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 2.1% in 2026 from 2025.

Appraised value by tax year, with the change from the previous year listed
Tax yearAppraised valueChangeChange %
2026$860,426−$18,344−2.1%
2025$878,770+$98,253+12.6%
2024$780,517−$76,229−8.9%
2023$856,746+$354,811+70.7%
2022$501,935+$426,225+563.0%
2020$75,710——
6-year total+$784,716+1036.5%