Harris Value

18910 Heron Ln, Tomball, TX 77377

2,702 sqft, built 1988, in Rosewood Hill Appraised at $535,401 for 2026.

Harris County account 1135010000078

Appraised value
$535,401
Tax year 2026 · after any cap, before exemptions
Market value
$540,759
Living area
2,702 sqft
$198 per sqft
Year built
1988
Good quality
Homestead
Yes
Owner-occupied exemption on file

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 10.0% from $486,729 in 2025 to $535,401 in 2026.
  • Appraised value per square footThe current public record shows about $198 per square foot before any comparable-property adjustments.
  • Market/appraised spreadThe county market value is $5,358 above the appraised value used on this page.
  • 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.

  • 18903 Grosbeak Ln, Tomball, TX 77377
    2,669 sqft | $199/sqft | built 1986 | Similar size (2,669 vs 2,702 sqft); Similar age (1986 vs 1988); Similar lot size (48,029 vs 49,815 sqft)
    $531,177
  • 18910 Pheasant Ln, Tomball, TX 77377
    2,693 sqft | $204/sqft | built 1985 | Similar size (2,693 vs 2,702 sqft); Similar age (1985 vs 1988); Similar lot size (46,963 vs 49,815 sqft)
    $548,376
  • 18811 N Roselake Dr, Tomball, TX 77377
    2,759 sqft | $221/sqft | built 1984 | Similar size (2,759 vs 2,702 sqft); Similar age (1984 vs 1988); Similar lot size (48,778 vs 49,815 sqft)
    $610,755
  • 18614 Mockingbird Ln, Tomball, TX 77377
    2,769 sqft | $190/sqft | built 1985 | Similar size (2,769 vs 2,702 sqft); Similar age (1985 vs 1988); Similar lot size (51,231 vs 49,815 sqft)
    $525,177
  • 18911 Pheasant Ln, Tomball, TX 77377
    2,633 sqft | $210/sqft | built 1988 | Similar size (2,633 vs 2,702 sqft); Built same year (1988); Similar lot size (46,609 vs 49,815 sqft)
    $552,270

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.