Harris Value

3934 Tolnay St, Houston, TX 77021

1,017 sqft, built 1940, in South Side Appraised at $139,707 for 2026.

Harris County account 0752370040009

Appraised value
$139,707
Tax year 2026 · after any cap, before exemptions
Living area
1,017 sqft
$137 per sqft
Year built
1940
Average 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 decreased 6.3% from $149,086 in 2025 to $139,707 in 2026.
  • Appraised value per square footThe current public record shows about $137 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 581 residential records in the same neighborhood, the average appraised value is about $133 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about +9.1% on average.

Comparable assessments

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

  • 3906 Porter St, Houston, TX 77021
    1,022 sqft | $67/sqft | built 1940 | Similar size (1,022 vs 1,017 sqft); Built same year (1940); Similar lot size (6,150 vs 6,150 sqft)
    $68,619
  • 3911 Zephyr St, Houston, TX 77021
    1,028 sqft | $132/sqft | built 1940 | Similar size (1,028 vs 1,017 sqft); Built same year (1940); Similar lot size (6,150 vs 6,150 sqft)
    $135,841
  • 3918 Tolnay St, Houston, TX 77021
    1,034 sqft | $96/sqft | built 1940 | Similar size (1,034 vs 1,017 sqft); Built same year (1940); Similar lot size (6,150 vs 6,150 sqft)
    $99,060
  • 3930 Tolnay St, Houston, TX 77021
    996 sqft | $127/sqft | built 1940 | Similar size (996 vs 1,017 sqft); Built same year (1940); Similar lot size (6,150 vs 6,150 sqft)
    $126,033
  • 6206 Sherwood Dr, Houston, TX 77021
    1,004 sqft | $133/sqft | built 1940 | Similar size (1,004 vs 1,017 sqft); Built same year (1940); Similar lot size (6,000 vs 6,150 sqft)
    $133,227

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.

  • 6226 Sherwood Dr, Houston, TX 77021
    September-15-2026 | 1,073 sqft | $107/sqft | built 1940 | 6% size difference (1,073 sqft); Similar age (1940); Sold after the valuation date
    $114,900
  • 3711 Cosby St, Houston, TX 77021
    September-30-2026 | 970 sqft | $154/sqft | built 1940 | Similar size (970 sqft); Similar age (1940); Sold after the valuation date
    $149,000
  • 6103 Sherwood Dr, Houston, TX 77021
    May-26-2026 | 1,056 sqft | $109/sqft | built 1940 | Similar size (1,056 sqft); Similar age (1940); Sold after the valuation date
    $115,000
  • 3457 Mainer St, Houston, TX 77021
    August-31-2026 | 1,054 sqft | $166/sqft | built 1950 | Similar size (1,054 sqft); Moderate age difference (10 years newer); Sold after the valuation date
    $175,000
  • 4914 Yellowstone Blvd, Houston, TX 77021
    August-21-2026 | 1,090 sqft | $146/sqft | built 1955 | 7% size difference (1,090 sqft); Sold after the valuation date
    $159,000

Public appraisal comparison for 2026. Prepared . Appraisal source: Harris County Appraisal District. Sales data checked in this snapshot: . Matches consider available size, age, location and property characteristics. How comparisons work.