Collin Value

820 Thomas Dr, Allen, TX 75013

4,813 sqft, built 2018, in Montgomery Farm Estates Phase 2B. Appraised at $1,469,324 for 2026.

Collin County account 2752836

Appraised value
$1,469,324
Tax year 2026
Living area
4,813 sqft
$305 per sqft
Year built
2018
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 75013 and Montgomery Farm Estates Phase 2B 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 increased 2.6% from $1,432,484 in 2025 to $1,469,324 in 2026.
  • Appraised value per square footThe current public record shows about $305 per square foot before any comparable-property adjustments.
  • Nearby comparison areaThis page starts the equity review with public records for the Montgomery Farm Estates Phase 2B neighborhood and ZIP 75013.
  • Neighborhood value signalAmong 191 residential records in the same neighborhood, the average appraised value is about $314 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about +1.4% on average.

Comparable assessments

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

  • 808 Thomas Dr, Allen, TX 75013
    4,713 sqft | $336/sqft | built 2019 | Similar size (4,713 vs 4,813 sqft); Similar age (2019 vs 2018); Similar lot size (14,471 vs 15,738 sqft)
    $1,582,000
  • 809 Thomas Dr, Allen, TX 75013
    4,914 sqft | $305/sqft | built 2018 | Similar size (4,914 vs 4,813 sqft); Built same year (2018); Lot 10% smaller (14,150 vs 15,738 sqft)
    $1,500,442
  • 831 Brett Dr, Allen, TX 75013
    5,341 sqft | $293/sqft | built 2018 | 11% larger (5,341 vs 4,813 sqft); Built same year (2018); Similar lot size (15,846 vs 15,738 sqft)
    $1,567,234
  • 805 Thomas Dr, Allen, TX 75013
    4,546 sqft | $327/sqft | built 2019 | 6% smaller (4,546 vs 4,813 sqft); Similar age (2019 vs 2018); Similar lot size (15,468 vs 15,738 sqft)
    $1,488,055
  • 935 Olivia Way, Allen, TX 75013
    4,322 sqft | $339/sqft | built 2020 | 10% smaller (4,322 vs 4,813 sqft); Similar age (2020 vs 2018); Similar lot size (15,594 vs 15,738 sqft)
    $1,465,509

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.

  • 2000 Hopewell Dr, Allen, TX 75013
    September-25-2026 | 4,497 sqft | $183/sqft | built 2017 | 7% size difference (4,497 sqft); Similar age (2017); Sold after the valuation date
    $825,000
  • 985 Shaddock Park Ln, Allen, TX 75013
    September-10-2026 | 4,562 sqft | $250/sqft | built 2007 | 5% size difference (4,562 sqft); Sold after the valuation date
    $1,140,000
  • 1070 Kenilworth St, Allen, TX 75013
    June-30-2026 | 4,804 sqft | $208/sqft | built 2013 | Similar size (4,804 sqft); Moderate age difference (5 years older); Sold after the valuation date
    $1,000,000
  • 2260 Richmond Ln, Allen, TX 75013
    September-14-2026 | 4,025 sqft | $211/sqft | built 2009 | Moderate age difference (9 years older); Sold after the valuation date
    $850,000
  • 1030 Everglades Dr, Allen, TX 75013
    June-22-2026 | 4,372 sqft | $183/sqft | built 2007 | 9% size difference (4,372 sqft); Sold after the valuation date
    $800,000

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

Up 2.6% in 2026 from 2025.

Appraised value by tax year, with the change from the previous year listed
Tax yearAppraised valueChangeChange %
2026$1,469,324+$36,840+2.6%
2025$1,432,484+$96,069+7.2%
2024$1,336,415+$138,695+11.6%
2023$1,197,720+$30,198+2.6%
2022$1,167,522+$164,852+16.4%
2021$1,002,670−$6,867−0.7%
2020$1,009,537——
6-year total+$459,787+45.5%