Collin Value

508 1/2 Heard St, Mckinney, TX 75069

1,340 sqft, built 1950, in Mcwilliams Manor. Appraised at $383,681 for 2026.

Collin County account 1107956

In line with similar homes

8 similar homes nearby support a value at or above your county value.

Appraised value$383,681
Similar homes$388,385
No gap: similar homes are at or above the county value · bars start at $0

How sure: High · 8 similar homes (5 shown below) · public records only

Appraised value
$383,681
Tax year 2026
Living area
1,340 sqft
$286 per sqft
Year built
1950
Homestead
Yes
Owner-occupied exemption on file

What we found

Unequal assessment

Weak

3 of 8 similar homes are assessed lower per square foot. Their similarity-weighted median is $288.16/sqft, but land is valued apart from the home, and some of them have less land value per square foot of home than yours, which counts as $230,000. Counting your land in place of theirs where theirs is less, they support a value of $388,385.

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 1.7% from $390,345 in 2025 to $383,681 in 2026.
  • Appraised value per square footThe current public record shows about $286 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

Showing 5 of the 8 similar homes in this property's equity comparison, from public appraisal records.

  • 510 Jones St, Mckinney, TX 75069
    1,295 sqft | $274/sqft | built 1950 | Similar size (1,295 vs 1,340 sqft); Built same year (1950); Similar lot size (7,492 vs 7,352 sqft)
    $355,000
  • 518 W Davis St, Mckinney, TX 75069
    1,276 sqft | $320/sqft | built 1950 | Similar size (1,276 vs 1,340 sqft); Built same year (1950); Similar lot size (7,143 vs 7,352 sqft)
    $408,376
  • 512 W Davis St, Mckinney, TX 75069
    1,390 sqft | $264/sqft | built 1945 | Similar size (1,390 vs 1,340 sqft); Similar age (1945 vs 1950); Similar lot size (7,471 vs 7,352 sqft)
    $366,357
  • 1107 W Hunt St, Mckinney, TX 75069
    1,288 sqft | $362/sqft | built 1953 | Similar size (1,288 vs 1,340 sqft); Similar age (1953 vs 1950); Similar lot size (7,779 vs 7,352 sqft)
    $466,555
  • 1408 W Louisiana St, Mckinney, TX 75069
    1,343 sqft | $288/sqft | built 1960 | Similar size (1,343 vs 1,340 sqft); Similar lot size (6,897 vs 7,352 sqft); Same neighborhood
    $387,000

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

Down 1.7% in 2026 from 2025.

Appraised value by tax year, with the change from the previous year listed
Tax yearAppraised valueChangeChange %
2026$383,681−$6,664−1.7%
2025$390,345+$132,786+51.6%
2024$257,559+$22,603+9.6%
2023$234,956+$31,958+15.7%
2022$202,998+$52,521+34.9%
2021$150,477−$103−0.1%
2020$150,580——
6-year total+$233,101+154.8%