Harris Value

18303 Westlock St, Tomball, TX 77377

1,478 sqft, built 1982, in Westbourne Appraised at $215,375 for 2026.

Harris County account 0440450000068

Appraised value
$215,375
Tax year 2026 · after any cap, before exemptions
Living area
1,478 sqft
$146 per sqft
Year built
1982
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 77377 and Westbourne 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 9.3% from $197,031 in 2025 to $215,375 in 2026.
  • Appraised value per square footThe current public record shows about $146 per square foot before any comparable-property adjustments.
  • Nearby comparison areaThis page starts the equity review with public records for the Westbourne neighborhood and ZIP 77377.
  • Neighborhood value signalAmong 767 residential records in the same neighborhood, the average appraised value is about $175 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about +4.7% on average.

Comparable assessments

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

  • 18103 Beaverdell Dr, Tomball, TX 77377
    1,456 sqft | $155/sqft | built 1984 | Similar size (1,456 vs 1,478 sqft); Similar age (1984 vs 1982); Similar lot size (5,974 vs 6,011 sqft)
    $225,315
  • 12003 Oakner Dr, Tomball, TX 77377
    1,456 sqft | $146/sqft | built 1984 | Similar size (1,456 vs 1,478 sqft); Similar age (1984 vs 1982); Similar lot size (6,192 vs 6,011 sqft)
    $212,587
  • 18218 Almonte Ln, Tomball, TX 77377
    1,444 sqft | $155/sqft | built 1978 | Similar size (1,444 vs 1,478 sqft); Similar age (1978 vs 1982); Similar lot size (6,360 vs 6,011 sqft)
    $223,950
  • 12206 Cardston Ct, Tomball, TX 77377
    1,456 sqft | $152/sqft | built 1985 | Similar size (1,456 vs 1,478 sqft); Similar age (1985 vs 1982); Similar lot size (5,463 vs 6,011 sqft)
    $221,833
  • 18342 Beaverdell Dr, Tomball, TX 77377
    1,466 sqft | $146/sqft | built 1982 | Similar size (1,466 vs 1,478 sqft); Built same year (1982); Lot 14% larger (6,866 vs 6,011 sqft)
    $213,580

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: . Showing the last prepared sales evidence while recent sales are refreshed. Matches consider available size, age, location and property characteristics. How comparisons work.