Harris Value

3934 Cosby St, Houston, TX 77021

1,199 sqft, built 1952, in South Side Appraised at $143,236 for 2026.

Harris County account 0752380100009

Appraised value
$143,236
Tax year 2026 · after any cap, before exemptions
Living area
1,199 sqft
$119 per sqft
Year built
1952
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 7.8% from $155,436 in 2025 to $143,236 in 2026.
  • Appraised value per square footThe current public record shows about $119 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.

  • 3903 Cosby St, Houston, TX 77021
    1,180 sqft | $94/sqft | built 1952 | Similar size (1,180 vs 1,199 sqft); Built same year (1952); Similar lot size (6,480 vs 6,150 sqft)
    $110,599
  • 3922 Luca St, Houston, TX 77021
    1,166 sqft | $160/sqft | built 1952 | Similar size (1,166 vs 1,199 sqft); Built same year (1952); Similar lot size (6,150 vs 6,150 sqft)
    $186,823
  • 6608 Sherwood Dr, Houston, TX 77021
    1,192 sqft | $169/sqft | built 1950 | Similar size (1,192 vs 1,199 sqft); Similar age (1950 vs 1952); Similar lot size (6,000 vs 6,150 sqft)
    $202,035
  • 3926 Cosby St, Houston, TX 77021
    1,182 sqft | $102/sqft | built 1952 | Similar size (1,182 vs 1,199 sqft); Built same year (1952); Similar lot size (6,150 vs 6,150 sqft)
    $120,971
  • 3938 Alsace St, Houston, TX 77021
    1,217 sqft | $115/sqft | built 1952 | Similar size (1,217 vs 1,199 sqft); Built same year (1952); Similar lot size (6,150 vs 6,150 sqft)
    $139,869

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.

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.