Harris Value

3610 Mainer St, Houston, TX 77021

969 sqft, built 1950, in South Side Appraised at $142,271 for 2026.

Harris County account 0741510380003

Appraised value
$142,271
Tax year 2026 · after any cap, before exemptions
Living area
969 sqft
$147 per sqft
Year built
1950
Low 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 increased 3.9% from $136,984 in 2025 to $142,271 in 2026.
  • Appraised value per square footThe current public record shows about $147 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 694 residential records in the same neighborhood, the average appraised value is about $151 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about +3.5% on average.

Comparable assessments

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

  • 3517 Mainer St, Houston, TX 77021
    974 sqft | $180/sqft | built 1949 | Similar size (974 vs 969 sqft); Similar age (1949 vs 1950); Similar lot size (5,000 vs 5,000 sqft)
    $175,692
  • 3545 Mainer St, Houston, TX 77021
    984 sqft | $142/sqft | built 1949 | Similar size (984 vs 969 sqft); Similar age (1949 vs 1950); Similar lot size (5,000 vs 5,000 sqft)
    $139,435
  • 3838 Noah St, Houston, TX 77021
    964 sqft | $144/sqft | built 1954 | Similar size (964 vs 969 sqft); Similar age (1954 vs 1950); Similar lot size (5,000 vs 5,000 sqft)
    $138,870
  • 3554 Mount Pleasant St, Houston, TX 77021
    1,001 sqft | $142/sqft | built 1950 | Similar size (1,001 vs 969 sqft); Built same year (1950); Similar lot size (5,000 vs 5,000 sqft)
    $141,642
  • 3837 Seabrook St, Houston, TX 77021
    974 sqft | $144/sqft | built 1955 | Similar size (974 vs 969 sqft); Similar age (1955 vs 1950); Similar lot size (5,000 vs 5,000 sqft)
    $140,606

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.

  • 6604 Conley St, Houston, TX 77021
    July-7-2026 | 960 sqft | $94/sqft | built 1950 | Similar size (960 sqft); Similar age (1950); Sold after the valuation date
    $89,882
  • 3457 Mainer St, Houston, TX 77021
    August-31-2026 | 1,054 sqft | $166/sqft | built 1950 | 9% size difference (1,054 sqft); Similar age (1950); Sold after the valuation date
    $175,000
  • 3747 Dreyfus St, Houston, TX 77021
    August-6-2026 | 879 sqft | $119/sqft | built 1950 | 9% size difference (879 sqft); Similar age (1950); Sold after the valuation date
    $105,000
  • 3714 Lydia St, Houston, TX 77021
    July-15-2026 | 1,021 sqft | $117/sqft | built 1965 | 5% size difference (1,021 sqft); Sold after the valuation date
    $119,900
  • 3711 Cosby St, Houston, TX 77021
    September-30-2026 | 970 sqft | $154/sqft | built 1940 | Similar size (970 sqft); Moderate age difference (10 years older); Sold after the valuation date
    $149,000

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.