Collin Value

1840 Lampasas Dr, Allen, TX 75013

4,064 sqft, built 2018, in Walnut Springs At Twin Creeks. Appraised at $832,397 for 2026.

Collin County account 2762559

Appraised value
$832,397
Tax year 2026
Living area
4,064 sqft
$205 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 Walnut Springs At Twin Creeks 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 3.8% from $865,531 in 2025 to $832,397 in 2026.
  • Appraised value per square footThe current public record shows about $205 per square foot before any comparable-property adjustments.
  • Nearby comparison areaThis page starts the equity review with public records for the Walnut Springs At Twin Creeks neighborhood and ZIP 75013.
  • Neighborhood value signalAmong 108 residential records in the same neighborhood, the average appraised value is about $221 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about -3.3% on average.

Comparable assessments

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

  • 1809 Allison Ave, Allen, TX 75013
    4,067 sqft | $210/sqft | built 2018 | Similar size (4,067 vs 4,064 sqft); Built same year (2018); Similar lot size (7,361 vs 7,753 sqft)
    $854,329
  • 1415 Adriane Ave, Allen, TX 75013
    3,953 sqft | $212/sqft | built 2019 | Similar size (3,953 vs 4,064 sqft); Similar age (2019 vs 2018); Similar lot size (7,840 vs 7,753 sqft)
    $839,232
  • 1814 Allison Ave, Allen, TX 75013
    3,859 sqft | $219/sqft | built 2019 | 5% smaller (3,859 vs 4,064 sqft); Similar age (2019 vs 2018); Similar lot size (7,666 vs 7,753 sqft)
    $845,021
  • 1806 Allison Ave, Allen, TX 75013
    4,197 sqft | $207/sqft | built 2018 | Similar size (4,197 vs 4,064 sqft); Built same year (2018); Similar lot size (7,187 vs 7,753 sqft)
    $866,799
  • 1812 Marshall Dr, Allen, TX 75013
    4,197 sqft | $205/sqft | built 2017 | Similar size (4,197 vs 4,064 sqft); Similar age (2017 vs 2018); Similar lot size (7,230 vs 7,753 sqft)
    $860,000

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.

  • 1501 Willingham Dr, Allen, TX 75013
    October-4-2026 | 4,064 sqft | $197/sqft | built 2010 | Similar size (4,064 sqft); Moderate age difference (8 years older); Sold after the valuation date
    $799,000
  • 1041 Blanco Dr, Allen, TX 75013
    October-1-2026 | 4,141 sqft | $180/sqft | built 2011 | Similar size (4,141 sqft); Moderate age difference (7 years older); Sold after the valuation date
    $745,000
  • 1490 Wesley Dr, Allen, TX 75013
    October-8-2026 | 4,031 sqft | $177/sqft | built 2008 | Similar size (4,031 sqft); Moderate age difference (10 years older); Sold after the valuation date
    $715,000
  • 1805 Marshall Dr, Allen, TX 75013
    August-3-2026 | 4,169 sqft | $185/sqft | built 2011 | Similar size (4,169 sqft); Moderate age difference (7 years older); Sold after the valuation date
    $769,900
  • 898 Newcastle Dr, Allen, TX 75013
    August-20-2026 | 3,684 sqft | $244/sqft | built 2019 | 9% size difference (3,684 sqft); Similar age (2019); Sold after the valuation date
    $899,000

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 3.8% in 2026 from 2025.

Appraised value by tax year, with the change from the previous year listed
Tax yearAppraised valueChangeChange %
2026$832,397−$33,134−3.8%
2025$865,531−$76,671−8.1%
2024$942,202+$138,714+17.3%
2023$803,488+$102,739+14.7%
2022$700,749+$108,203+18.3%
2021$592,546+$25,857+4.6%
2020$566,689——
6-year total+$265,708+46.9%