DTX Value

449 Polly Rd Sunnyvale

5 bed / 3 bath, 3,262 sqft, built 2022 Appraised at $679,640 for 2026.

Dallas County account 520058100100100HS

Appraised value
$679,640
Tax year 2026
Living area
3,262 sqft
$208 per sqft
Year built
2022
Excellent quality

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 DCAD Appraisal Area 3YSM08 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 DCAD records highlight what may be worth checking before you file.

  • Appraised value per square footThe current public record shows about $208 per square foot before any comparable-property adjustments.
  • Neighborhood value signalAmong 49 residential records in the same neighborhood, the average appraised value is about $260 per square foot.

Comparable assessments

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

  • 474 N Collins Rd, Sunnyvale, TX 75182
    3,441 sqft | $313/sqft | built 2024 | 6% larger (3,441 vs 3,262 sqft); Similar age (2024 vs 2022); Same quality (Excellent)
    $1,078,000
  • 368 Town East Blvd Sunnyvale
    2,488 sqft | $395/sqft | built 2023 | Similar age (2023 vs 2022); Same quality (Excellent); Same condition (Excellent)
    $982,020
  • 341 N Collins Rd Sunnyvale
    4,202 sqft | $222/sqft | built 2021 | Similar age (2021 vs 2022); Same quality (Excellent); Same condition (Excellent)
    $933,000
  • 510 N Collins Rd, Sunnyvale, TX 75182
    3,606 sqft | $152/sqft | built 2012 | 10% larger (3,606 vs 3,262 sqft); Similar quality (1 step: Very Good vs Excellent); Similar condition (1 step: Very Good vs Excellent)
    $548,800
  • 509 N Collins Rd, Sunnyvale, TX 75182
    3,958 sqft | $202/sqft | built 2013 | Similar quality (1 step: Very Good vs Excellent); Similar condition (1 step: Very Good vs Excellent); Same neighborhood
    $798,860

Recent comparable sales

No usable comparable sales are available in this data snapshot.

Public appraisal comparison for 2026. Prepared . Appraisal source: Dallas Central Appraisal District. Matches consider available size, age, location and property characteristics. How comparisons work.