Collin Value

2136 Grafton Ln, Mckinney, TX 75071

2,398 sqft, built 2017, in Auburn Hills Phase 5C. Appraised at $654,398 for 2026.

Collin County account 2747065

Likely too high

about $60,000

8 similar homes nearby point to a value about $60,000 lower than yours.

Appraised value$654,398
Similar homes$594,512
$59,886 gap · bars start at $0

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

Appraised value
$654,398
Tax year 2026
Living area
2,398 sqft
$273 per sqft
Year built
2017
Homestead
Yes
Owner-occupied exemption on file

Why we think so

Unequal assessment

Strong

8 of 8 similar homes are assessed lower per square foot. Their similarity-weighted median is $233.05/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 $210,000. Counting your land in place of theirs where theirs is less, they support a value of $594,512.

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, Auburn Hills Phase 5C, 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 0.9% from $660,598 in 2025 to $654,398 in 2026.
  • Appraised value per square footThe current public record shows about $273 per square foot before any comparable-property adjustments.
  • Nearby comparison areaThis page starts the equity review with public records for the Auburn Hills Phase 5C neighborhood and ZIP 75071.
  • Neighborhood value signalAmong 186 residential records in the same neighborhood, the average appraised value is about $218 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about -7.5% on average.

Comparable assessments

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

  • 2116 Triton Dr, Mckinney, TX 75071
    2,405 sqft | $233/sqft | built 2017 | Similar size (2,405 vs 2,398 sqft); Built same year (2017); Similar lot size (6,731 vs 6,875 sqft)
    $559,373
  • 2308 Triton Dr, Mckinney, TX 75071
    2,413 sqft | $234/sqft | built 2018 | Similar size (2,413 vs 2,398 sqft); Similar age (2018 vs 2017); Similar lot size (6,696 vs 6,875 sqft)
    $565,764
  • 2125 Triton Dr, Mckinney, TX 75071
    2,407 sqft | $233/sqft | built 2017 | Similar size (2,407 vs 2,398 sqft); Built same year (2017); Similar lot size (6,597 vs 6,875 sqft)
    $560,963
  • 2208 Triton Dr, Mckinney, TX 75071
    2,407 sqft | $224/sqft | built 2017 | Similar size (2,407 vs 2,398 sqft); Built same year (2017); Lot 13% smaller (6,000 vs 6,875 sqft)
    $539,000
  • 2513 Newton Ln, Mckinney, TX 75071
    2,274 sqft | $230/sqft | built 2020 | 5% smaller (2,274 vs 2,398 sqft); Similar age (2020 vs 2017); Similar lot size (7,053 vs 6,875 sqft)
    $523,000

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.

  • 5224 Troupe Rd, Mckinney, TX 75071
    October-8-2026 | 2,381 sqft | $209/sqft | built 2022 | Similar size (2,381 sqft); Moderate age difference (5 years newer); Sold after the valuation date
    $498,000
  • 7800 Rockledge Dr, Mckinney, TX 75071
    September-18-2026 | 2,513 sqft | $215/sqft | built 2011 | Similar size (2,513 sqft); Moderate age difference (6 years older); Sold after the valuation date
    $540,000
  • 1428 Hoyt Dr, Mckinney, TX 75071
    August-3-2026 | 2,523 sqft | $220/sqft | built 2019 | 5% size difference (2,523 sqft); Similar age (2019); Sold after the valuation date
    $555,000
  • 8529 White River Trl, Mckinney, TX 75071
    August-4-2026 | 2,207 sqft | $224/sqft | built 2018 | 8% size difference (2,207 sqft); Similar age (2018); Sold after the valuation date
    $495,000
  • 3933 Ramble Creek Dr, Mckinney, TX 75071
    September-9-2026 | 2,074 sqft | $224/sqft | built 2017 | 14% size difference (2,074 sqft); Similar age (2017); Sold after the valuation date
    $465,000

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 0.9% in 2026 from 2025.

Appraised value by tax year, with the change from the previous year listed
Tax yearAppraised valueChangeChange %
2026$654,398−$6,200−0.9%
2025$660,598−$49,550−7.0%
2024$710,148+$24,313+3.5%
2023$685,835+$48,082+7.5%
2022$637,753+$206,682+47.9%
2021$431,071+$19,425+4.7%
2020$411,646——
6-year total+$242,752+59.0%