Collin Value

523 Mefford Ln, Allen, TX 75013

2,852 sqft, built 2006, in Park At Montgomery Farm The. Appraised at $693,304 for 2026.

Collin County account 2585515

Appraised value
$693,304
Tax year 2026
Living area
2,852 sqft
$243 per sqft
Year built
2006
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 Park At Montgomery Farm The 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 1.1% from $685,617 in 2025 to $693,304 in 2026.
  • Appraised value per square footThe current public record shows about $243 per square foot before any comparable-property adjustments.
  • Nearby comparison areaThis page starts the equity review with public records for the Park At Montgomery Farm The neighborhood and ZIP 75013.
  • Neighborhood value signalAmong 175 residential records in the same neighborhood, the average appraised value is about $227 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about -0.4% on average.

Comparable assessments

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

  • 1226 Philip Dr, Allen, TX 75013
    2,847 sqft | $244/sqft | built 2006 | Similar size (2,847 vs 2,852 sqft); Built same year (2006); Both have pool
    $694,921
  • 1214 Philip Dr, Allen, TX 75013
    2,856 sqft | $237/sqft | built 2007 | Similar size (2,856 vs 2,852 sqft); Similar age (2007 vs 2006); Both have pool
    $677,459
  • 1121 Nick Cir, Allen, TX 75013
    2,860 sqft | $227/sqft | built 2007 | Similar size (2,860 vs 2,852 sqft); Similar age (2007 vs 2006); Both have pool
    $650,000
  • 1204 Philip Dr, Allen, TX 75013
    2,860 sqft | $234/sqft | built 2007 | Similar size (2,860 vs 2,852 sqft); Similar age (2007 vs 2006); Both have pool
    $670,044
  • 615 Seeport Dr, Allen, TX 75013
    2,836 sqft | $244/sqft | built 2007 | Similar size (2,836 vs 2,852 sqft); Similar age (2007 vs 2006); Both have pool
    $692,532

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.

  • 1208 Caliche Trl, Allen, TX 75013
    September-30-2026 | 2,840 sqft | $252/sqft | built 2014 | Similar size (2,840 sqft); Moderate age difference (8 years newer); Sold after the valuation date
    $715,000
  • 615 Naples Dr, Allen, TX 75013
    September-10-2026 | 2,769 sqft | $244/sqft | built 2007 | Similar size (2,769 sqft); Similar age (2007); Sold after the valuation date
    $675,000
  • 402 Irvine Dr, Allen, TX 75013
    October-7-2026 | 2,922 sqft | $205/sqft | built 1996 | Similar size (2,922 sqft); Moderate age difference (10 years older); Sold after the valuation date
    $599,900
  • 1000 Rebecca Dr, Allen, TX 75013
    September-14-2026 | 2,822 sqft | $239/sqft | built 2021 | Similar size (2,822 sqft); Sold after the valuation date
    $675,000
  • 707 Twin Creeks Dr, Allen, TX 75013
    September-15-2026 | 2,755 sqft | $218/sqft | built 1994 | Similar size (2,755 sqft); Sold after the valuation date
    $600,000

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 1.1% in 2026 from 2025.

Appraised value by tax year, with the change from the previous year listed
Tax yearAppraised valueChangeChange %
2026$693,304+$7,687+1.1%
2025$685,617+$872+0.1%
2024$684,745−$9,446−1.4%
2023$694,191+$135,740+24.3%
2022$558,451+$102,606+22.5%
2021$455,845+$12,174+2.7%
2020$443,671——
6-year total+$249,633+56.3%

Recent sale history

Recent transfers help establish whether the county value is tracking real market behavior.

  • $739,000 sale recorded on September-1-2026