Harris Value

4003 Porter St, Houston, TX 77021

1,422 sqft, built 1940, in South Side Appraised at $140,373 for 2026.

Harris County account 0752370010011

Appraised value
$140,373
Tax year 2026 · after any cap, before exemptions
Living area
1,422 sqft
$99 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 increased 8.3% from $129,619 in 2025 to $140,373 in 2026.
  • Appraised value per square footThe current public record shows about $99 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.

  • 3915 Porter St, Houston, TX 77021
    1,396 sqft | $114/sqft | built 1940 | Similar size (1,396 vs 1,422 sqft); Built same year (1940); Similar lot size (7,200 vs 7,200 sqft)
    $159,559
  • 6230 Sherwood Dr, Houston, TX 77021
    1,481 sqft | $118/sqft | built 1940 | Similar size (1,481 vs 1,422 sqft); Built same year (1940); Similar lot size (7,800 vs 7,200 sqft)
    $174,321
  • 6629 Eastwood St, Houston, TX 77021
    1,349 sqft | $108/sqft | built 1940 | 5% smaller (1,349 vs 1,422 sqft); Built same year (1940); Similar lot size (6,558 vs 7,200 sqft)
    $145,835
  • 3911 Alsace St, Houston, TX 77021
    1,446 sqft | $101/sqft | built 1940 | Similar size (1,446 vs 1,422 sqft); Built same year (1940); Lot 15% smaller (6,150 vs 7,200 sqft)
    $146,237
  • 6602 Sherwood Dr, Houston, TX 77021
    1,420 sqft | $91/sqft | built 1950 | Similar size (1,420 vs 1,422 sqft); Similar lot size (7,800 vs 7,200 sqft); Same quality (Average)
    $129,613

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.

  • 4626 Dewberry St, Houston, TX 77021
    September-30-2026 | 1,376 sqft | $155/sqft | built 1940 | Similar size (1,376 sqft); Similar age (1940); Sold after the valuation date
    $213,000
  • 4935 Enyart St, Houston, TX 77021
    September-21-2026 | 1,380 sqft | $174/sqft | built 1950 | Similar size (1,380 sqft); Moderate age difference (10 years newer); Sold after the valuation date
    $240,000
  • 5501 Milart St, Houston, TX 77021
    September-25-2026 | 1,464 sqft | $95/sqft | built 1949 | Similar size (1,464 sqft); Moderate age difference (9 years newer); Sold after the valuation date
    $139,000
  • 5107 Kingsbury St, Houston, TX 77021
    September-4-2026 | 1,328 sqft | $169/sqft | built 1951 | 7% size difference (1,328 sqft); Sold after the valuation date
    $225,000
  • 5135 Balkin St, Houston, TX 77021
    August-24-2026 | 1,376 sqft | $124/sqft | built 1955 | Similar size (1,376 sqft); Sold after the valuation date
    $169,990

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.