Collin Value

812 Thomas Dr, Allen, TX 75013

3,920 sqft, built 2018, in Montgomery Farm Estates Phase 2B. Appraised at $1,285,343 for 2026.

Collin County account 2752838

Appraised value
$1,285,343
Tax year 2026
Living area
3,920 sqft
$328 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 2.5% from $1,253,872 in 2025 to $1,285,343 in 2026.
  • Appraised value per square footThe current public record shows about $328 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.

  • 902 Sydney Ln, Allen, TX 75013
    3,828 sqft | $331/sqft | built 2018 | Similar size (3,828 vs 3,920 sqft); Built same year (2018); Similar lot size (11,792 vs 12,037 sqft)
    $1,268,544
  • 1131 Spencer St, Allen, TX 75013
    3,952 sqft | $340/sqft | built 2021 | Similar size (3,952 vs 3,920 sqft); Similar age (2021 vs 2018); Similar lot size (12,637 vs 12,037 sqft)
    $1,341,879
  • 916 Brett Dr, Allen, TX 75013
    4,050 sqft | $317/sqft | built 2018 | Similar size (4,050 vs 3,920 sqft); Built same year (2018); Similar lot size (12,600 vs 12,037 sqft)
    $1,283,000
  • 905 Leonard Ln, Allen, TX 75013
    4,050 sqft | $322/sqft | built 2020 | Similar size (4,050 vs 3,920 sqft); Similar age (2020 vs 2018); Similar lot size (12,632 vs 12,037 sqft)
    $1,303,779
  • 927 Sydney Ln, Allen, TX 75013
    4,082 sqft | $324/sqft | built 2020 | Similar size (4,082 vs 3,920 sqft); Similar age (2020 vs 2018); Similar lot size (11,490 vs 12,037 sqft)
    $1,322,284

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.

  • 2020 Artemis Ct, Allen, TX 75013
    October-2-2026 | 3,848 sqft | $227/sqft | built 2016 | Similar size (3,848 sqft); Similar age (2016); Sold after the valuation date
    $875,000
  • 2260 Richmond Ln, Allen, TX 75013
    September-14-2026 | 4,025 sqft | $211/sqft | built 2009 | Similar size (4,025 sqft); Moderate age difference (9 years older); Sold after the valuation date
    $850,000
  • 2340 Hedgewood Ln, Allen, TX 75013
    October-7-2026 | 3,826 sqft | $206/sqft | built 2007 | Similar size (3,826 sqft); Sold after the valuation date
    $789,800
  • 1048 Kenilworth St, Allen, TX 75013
    July-28-2026 | 4,171 sqft | $222/sqft | built 2012 | 6% size difference (4,171 sqft); Moderate age difference (6 years older); Sold after the valuation date
    $925,000
  • 901 Crestmoor Dr, Allen, TX 75013
    September-4-2026 | 4,105 sqft | $225/sqft | built 2006 | Similar size (4,105 sqft); Sold after the valuation date
    $924,999

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 2.5% in 2026 from 2025.

Appraised value by tax year, with the change from the previous year listed
Tax yearAppraised valueChangeChange %
2026$1,285,343+$31,471+2.5%
2025$1,253,872+$90,822+7.8%
2024$1,163,050+$113,910+10.9%
2023$1,049,140+$32,535+3.2%
2022$1,016,605+$133,114+15.1%
2021$883,491+$45,036+5.4%
2020$838,455——
6-year total+$446,888+53.3%