DTX Value

521 Helena Ave, Dallas, TX 75217

3 bed / 2 bath, 1,263 sqft, built 1950 Appraised at $287,130 for 2026.

Dallas County account 00000553795000000

Appraised value
$287,130
Tax year 2026
Living area
1,263 sqft
$227 per sqft
Year built
1950
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 ZIP 75217 and DCAD Appraisal Area 4DSD13 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 $227 per square foot before any comparable-property adjustments.
  • Nearby comparison areaThis page starts the equity review with public records for ZIP 75217.
  • Neighborhood value signalAmong 952 residential records in the same neighborhood, the average appraised value is about $191 per square foot.

Comparable assessments

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

  • 508 Woodmont Dr, Dallas, TX 75217
    1,207 sqft | $197/sqft | built 1958 | Similar size (1,207 vs 1,263 sqft); Same story count (1); Similar lot size (7,488 vs 7,117 sqft)
    $238,150
  • 718 Helena Ave, Dallas, TX 75217
    1,176 sqft | $293/sqft | built 1958 | 7% smaller (1,176 vs 1,263 sqft); Same story count (1); Similar lot size (7,211 vs 7,117 sqft)
    $345,060
  • 706 Neomi St, Dallas, TX 75217
    1,388 sqft | $184/sqft | built 1964 | 10% larger (1,388 vs 1,263 sqft); Same story count (1); Similar lot size (7,035 vs 7,117 sqft)
    $255,030
  • 7015 Hodde St, Dallas, TX 75217
    1,214 sqft | $198/sqft | built 1959 | Similar size (1,214 vs 1,263 sqft); Same story count (1); Similar lot size (7,694 vs 7,117 sqft)
    $239,900
  • 702 Ezekial Ave, Dallas, TX 75217
    1,420 sqft | $183/sqft | built 1959 | 12% larger (1,420 vs 1,263 sqft); Same story count (1); Lot 18% smaller (5,830 vs 7,117 sqft)
    $259,650

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.

  • 1624 Houghton Rd, Dallas, TX 75217
    July-23-2026 | 1,254 sqft | $203/sqft | built 1954 | Similar size (1,254 sqft); Moderate age difference (4 years newer); Sold after the valuation date
    $255,000
  • 1802 Las Cruces Ln, Dallas, TX 75217
    June-24-2026 | 1,248 sqft | $192/sqft | built 1953 | Similar size (1,248 sqft); Similar age (1953); Sold after the valuation date
    $240,000
  • 814 Wideman Dr, Dallas, TX 75217
    September-14-2026 | 1,344 sqft | $186/sqft | built 1963 | 6% size difference (1,344 sqft); Sold after the valuation date; Same beds (3)
    $250,000
  • 1718 Joan Dr, Dallas, TX 75217
    September-21-2026 | 1,428 sqft | $148/sqft | built 1957 | 13% size difference (1,428 sqft); Moderate age difference (7 years newer); Sold after the valuation date
    $211,500
  • 638 Odeneal St, Dallas, TX 75217
    August-17-2026 | 1,128 sqft | $191/sqft | built 1957 | 11% size difference (1,128 sqft); Moderate age difference (7 years newer); Sold after the valuation date
    $215,000

Public appraisal comparison for 2026. Prepared . Appraisal source: Dallas Central Appraisal District. Sales data checked in this snapshot: . Showing the last prepared sales evidence while recent sales are refreshed. Matches consider available size, age, location and property characteristics. How comparisons work.