Collin Value

1827 Olney Dr, Allen, TX 75013

4,502 sqft, built 2009, in Twin Creeks Phase 8C. Appraised at $872,816 for 2026.

Collin County account 2619299

Appraised value
$872,816
Tax year 2026
Living area
4,502 sqft
$194 per sqft
Year built
2009
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 Twin Creeks Phase 8C 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 8.1% from $949,987 in 2025 to $872,816 in 2026.
  • Appraised value per square footThe current public record shows about $194 per square foot before any comparable-property adjustments.
  • Nearby comparison areaThis page starts the equity review with public records for the Twin Creeks Phase 8C neighborhood and ZIP 75013.
  • Neighborhood value signalAmong 80 residential records in the same neighborhood, the average appraised value is about $206 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about -7.9% on average.

Comparable assessments

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

  • 1815 Olney Dr, Allen, TX 75013
    4,500 sqft | $195/sqft | built 2008 | Similar size (4,500 vs 4,502 sqft); Similar age (2008 vs 2009); Same neighborhood
    $876,576
  • 1832 Olney Dr, Allen, TX 75013
    4,447 sqft | $178/sqft | built 2009 | Similar size (4,447 vs 4,502 sqft); Built same year (2009); Same neighborhood
    $793,000
  • 1827 Trinidad Ln, Allen, TX 75013
    4,516 sqft | $197/sqft | built 2007 | Similar size (4,516 vs 4,502 sqft); Similar age (2007 vs 2009); Same neighborhood
    $890,354
  • 1838 Trinidad Ln, Allen, TX 75013
    4,462 sqft | $203/sqft | built 2007 | Similar size (4,462 vs 4,502 sqft); Similar age (2007 vs 2009); Same neighborhood
    $905,545
  • 1838 Olney Dr, Allen, TX 75013
    4,408 sqft | $196/sqft | built 2009 | Similar size (4,408 vs 4,502 sqft); Built same year (2009); Same neighborhood
    $865,000

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.

  • 985 Shaddock Park Ln, Allen, TX 75013
    September-10-2026 | 4,562 sqft | $250/sqft | built 2007 | Similar size (4,562 sqft); Similar age (2007); Sold after the valuation date
    $1,140,000
  • 2000 Hopewell Dr, Allen, TX 75013
    September-25-2026 | 4,497 sqft | $183/sqft | built 2017 | Similar size (4,497 sqft); Moderate age difference (8 years newer); Sold after the valuation date
    $825,000
  • 927 McKamy Dr, Allen, TX 75013
    September-21-2026 | 4,333 sqft | $208/sqft | built 2007 | Similar size (4,333 sqft); Similar age (2007); Sold after the valuation date
    $900,000
  • 1815 Olney Dr, Allen, TX 75013
    July-20-2026 | 4,500 sqft | $199/sqft | built 2008 | Similar size (4,500 sqft); Similar age (2008); Sold after the valuation date
    $895,000
  • 1812 Trinidad Ln, Allen, TX 75013
    August-11-2026 | 4,643 sqft | $188/sqft | built 2010 | Similar size (4,643 sqft); Similar age (2010); Sold after the valuation date
    $875,000

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 8.1% in 2026 from 2025.

Appraised value by tax year, with the change from the previous year listed
Tax yearAppraised valueChangeChange %
2026$872,816−$77,171−8.1%
2025$949,987+$87,865+10.2%
2024$862,122−$45,543−5.0%
2023$907,665+$146,593+19.3%
2022$761,072+$136,821+21.9%
2021$624,251+$40,540+6.9%
2020$583,711——
6-year total+$289,105+49.5%