Collin Value

618 W Louisiana St, Mckinney, TX 75069

4,630 sqft, built 1910, in Mcwilliams Manor. Appraised at $1,366,423 for 2026.

Collin County account 1125945

Appraised value
$1,366,423
Tax year 2026
Living area
4,630 sqft
$295 per sqft
Year built
1910
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 75069, Mcwilliams Manor, McKinney, and Fairview 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 3.0% from $1,408,238 in 2025 to $1,366,423 in 2026.
  • Appraised value per square footThe current public record shows about $295 per square foot before any comparable-property adjustments.
  • Nearby comparison areaThis page starts the equity review with public records for the Mcwilliams Manor neighborhood and ZIP 75069.
  • Neighborhood value signalAmong 964 residential records in the same neighborhood, the average appraised value is about $300 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about +2.6% on average.

Comparable assessments

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

  • 607 N Church St, Mckinney, TX 75069
    4,870 sqft | $264/sqft | built 1910 | 5% larger (4,870 vs 4,630 sqft); Built same year (1910); Similar lot size (15,737 vs 16,988 sqft)
    $1,285,533
  • 509 Tucker St, Mckinney, TX 75069
    4,086 sqft | $353/sqft | built 1910 | 12% smaller (4,086 vs 4,630 sqft); Built same year (1910); Similar lot size (16,857 vs 16,988 sqft)
    $1,443,329
  • 506 W Hunt St, Mckinney, TX 75069
    4,906 sqft | $368/sqft | built 1906 | 6% larger (4,906 vs 4,630 sqft); Similar age (1906 vs 1910); Similar lot size (16,882 vs 16,988 sqft)
    $1,806,404
  • 211 N College St, Mckinney, TX 75069
    4,110 sqft | $299/sqft | built 1908 | 11% smaller (4,110 vs 4,630 sqft); Similar age (1908 vs 1910); Similar lot size (16,504 vs 16,988 sqft)
    $1,228,734
  • 515 W Hunt St, Mckinney, TX 75069
    4,006 sqft | $252/sqft | built 1908 | 14% smaller (4,006 vs 4,630 sqft); Similar age (1908 vs 1910); Similar lot size (16,512 vs 16,988 sqft)
    $1,008,479

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: . Showing the last prepared sales evidence while recent sales are refreshed. Matches consider available size, age, location and property characteristics. How comparisons work.

Value history

Down 3.0% in 2026 from 2025.

Appraised value by tax year, with the change from the previous year listed
Tax yearAppraised valueChangeChange %
2026$1,366,423−$41,815−3.0%
2025$1,408,238+$263,396+23.0%
2024$1,144,842+$56,651+5.2%
2023$1,088,191+$101,417+10.3%
2022$986,774+$160,421+19.4%
2021$826,353+$133,353+19.2%
2020$693,000——
6-year total+$673,423+97.2%