Harris Value

18710 Mockingbird Ln, Tomball, TX 77377

2,840 sqft, built 1983, in Rosewood Hill Appraised at $513,747 for 2026.

Harris County account 1146250000039

Appraised value
$513,747
Tax year 2026 · after any cap, before exemptions
Living area
2,840 sqft
$181 per sqft
Year built
1983
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 Rosewood Hill 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 8.8% from $472,173 in 2025 to $513,747 in 2026.
  • Appraised value per square footThe current public record shows about $181 per square foot before any comparable-property adjustments.
  • Nearby comparison areaThis page starts the equity review with public records for the Rosewood Hill neighborhood and ZIP 77377.
  • Neighborhood value signalAmong 287 residential records in the same neighborhood, the average appraised value is about $203 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about +10.0% on average.

Comparable assessments

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

  • 18918 Meadow Ln, Tomball, TX 77377
    2,883 sqft | $177/sqft | built 1981 | Similar size (2,883 vs 2,840 sqft); Similar age (1981 vs 1983); Lot 11% larger (41,199 vs 37,026 sqft)
    $509,909
  • 18810 W Bluebird Ln, Tomball, TX 77377
    3,004 sqft | $200/sqft | built 1981 | 6% larger (3,004 vs 2,840 sqft); Similar age (1981 vs 1983); Similar lot size (35,066 vs 37,026 sqft)
    $602,108
  • 18915 Robin Ln, Tomball, TX 77377
    2,894 sqft | $175/sqft | built 1992 | Similar size (2,894 vs 2,840 sqft); Similar lot size (37,658 vs 37,026 sqft); Same quality (Average)
    $506,665
  • 18711 Mockingbird Ln, Tomball, TX 77377
    2,846 sqft | $189/sqft | built 1981 | Similar size (2,846 vs 2,840 sqft); Similar age (1981 vs 1983); Lot 18% larger (43,560 vs 37,026 sqft)
    $537,305
  • 18706 Goldfinch Ln, Tomball, TX 77377
    2,596 sqft | $186/sqft | built 1983 | 9% smaller (2,596 vs 2,840 sqft); Built same year (1983); Similar lot size (39,004 vs 37,026 sqft)
    $482,841

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.

  • 14902 Cactus Wren Dr, Tomball, TX 77377
    October-1-2026 | 2,844 sqft | $188/sqft | built 1996 | Similar size (2,844 sqft); Sold after the valuation date
    $535,000
  • 16318 Avenplace Rd, Tomball, TX 77377
    July-31-2026 | 2,816 sqft | $140/sqft | built 1988 | Similar size (2,816 sqft); Moderate age difference (5 years newer); Sold after the valuation date
    $395,000
  • 16415 Lakestone Dr, Tomball, TX 77377
    August-19-2026 | 2,862 sqft | $118/sqft | built 1991 | Similar size (2,862 sqft); Moderate age difference (8 years newer); Sold after the valuation date
    $339,000
  • 15606 Lago Villa Dr, Tomball, TX 77377
    August-11-2026 | 2,799 sqft | $126/sqft | built 1992 | Similar size (2,799 sqft); Moderate age difference (9 years newer); Sold after the valuation date
    $353,000
  • 15602 Gettysburg Dr, Tomball, TX 77377
    August-14-2026 | 2,979 sqft | $143/sqft | built 1990 | Similar size (2,979 sqft); Moderate age difference (7 years newer); Sold after the valuation date
    $425,000

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.