Harris Value

3735 Rio Vista St, Houston, TX 77021

2,966 sqft, built 1949, in South Side Appraised at $398,782 for 2026.

Harris County account 0611380700003

Appraised value
$398,782
Tax year 2026 · after any cap, before exemptions
Living area
2,966 sqft
$134 per sqft
Year built
1949
Good 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 77021 and South Side 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 delivered, 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 HCAD records highlight what may be worth checking before you file.

  • Assessment changeThe appraised value stayed about the same, from $398,782 in 2025 to $398,782 in 2026.
  • Appraised value per square footThe current public record shows about $134 per square foot before any comparable-property adjustments.
  • Nearby comparison areaThis page starts the equity review with public records for the South Side neighborhood and ZIP 77021.
  • Neighborhood value signalAmong 73 residential records in the same neighborhood, the average appraised value is about $184 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about +2.3% on average.

Comparable assessments

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

  • 3730 Rio Vista St, Houston, TX 77021
    3,004 sqft | $137/sqft | built 1949 | Similar size (3,004 vs 2,966 sqft); Built same year (1949); Similar lot size (11,475 vs 11,305 sqft)
    $411,612
  • 3737 Parkwood Dr, Houston, TX 77021
    3,098 sqft | $136/sqft | built 1949 | Similar size (3,098 vs 2,966 sqft); Built same year (1949); Similar lot size (11,537 vs 11,305 sqft)
    $421,667
  • 3726 Parkwood Dr, Houston, TX 77021
    3,091 sqft | $141/sqft | built 1948 | Similar size (3,091 vs 2,966 sqft); Similar age (1948 vs 1949); Similar lot size (10,880 vs 11,305 sqft)
    $435,681
  • 3738 Charleston St, Houston, TX 77021
    3,018 sqft | $103/sqft | built 1945 | Similar size (3,018 vs 2,966 sqft); Similar age (1945 vs 1949); Similar lot size (12,240 vs 11,305 sqft)
    $311,163
  • 3747 Parkwood Dr, Houston, TX 77021
    2,902 sqft | $202/sqft | built 1949 | Similar size (2,902 vs 2,966 sqft); Built same year (1949); Similar lot size (11,305 vs 11,305 sqft)
    $584,754

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.

  • 3631 Luca St, Houston, TX 77021
    June-24-2026 | 2,850 sqft | $140/sqft | built 1945 | Similar size (2,850 sqft); Moderate age difference (4 years older); Sold after the valuation date
    $399,000
  • 4102 Charleston St, Houston, TX 77021
    August-27-2026 | 2,432 sqft | $164/sqft | built 1952 | Similar age (1952); Sold after the valuation date
    $399,000
  • 3215 Milburn St, Houston, TX 77021
    May-29-2026 | 2,991 sqft | $142/sqft | built 1949 | Similar size (2,991 sqft); Similar age (1949); Sold after the valuation date
    $425,000
  • 3702 Charleston St, Houston, TX 77021
    July-23-2026 | 2,295 sqft | $244/sqft | built 1950 | Similar age (1950); Sold after the valuation date
    $560,000
  • 3217 Parkwood Dr, Houston, TX 77021
    May-13-2026 | 2,461 sqft | $284/sqft | built 1940 | Moderate age difference (9 years older); Sold after the valuation date
    $699,000

Public appraisal comparison for 2026. Prepared . Appraisal source: Harris County 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.