Harris Value

18910 Robin Ln, Tomball, TX 77377

3,084 sqft, built 1989, in Rosewood Hill Appraised at $621,638 for 2026.

Harris County account 1135010000103

Appraised value
$621,638
Tax year 2026 · after any cap, before exemptions
Market value
$700,250
Living area
3,084 sqft
$202 per sqft
Year built
1989
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 $565,126 in 2025 to $621,638 in 2026.
  • Appraised value per square footThe current public record shows about $202 per square foot before any comparable-property adjustments.
  • Market/appraised spreadThe county market value is $78,612 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.

  • 22910 Rosewood Trl, Tomball, TX 77377
    3,291 sqft | $207/sqft | built 1991 | 7% larger (3,291 vs 3,084 sqft); Similar age (1991 vs 1989); Similar lot size (73,120 vs 69,374 sqft)
    $680,509
  • 18934 Live Oak Trl, Tomball, TX 77377
    3,258 sqft | $237/sqft | built 1991 | 6% larger (3,258 vs 3,084 sqft); Similar age (1991 vs 1989); Similar lot size (64,116 vs 69,374 sqft)
    $771,608
  • 22103 Rosewood Trl, Tomball, TX 77377
    2,886 sqft | $185/sqft | built 1980 | 6% smaller (2,886 vs 3,084 sqft); Similar lot size (63,789 vs 69,374 sqft); Same quality (Good)
    $535,093
  • 22602 Cardinal Ln, Tomball, TX 77377
    3,161 sqft | $161/sqft | built 1983 | Similar size (3,161 vs 3,084 sqft); Lot 13% larger (78,491 vs 69,374 sqft); Same quality (Good)
    $509,499
  • 18801 Meadow Ln, Tomball, TX 77377
    2,696 sqft | $234/sqft | built 1984 | 13% smaller (2,696 vs 3,084 sqft); Similar age (1984 vs 1989); Similar lot size (71,003 vs 69,374 sqft)
    $630,210

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.

  • 15602 Gettysburg Dr, Tomball, TX 77377
    August-14-2026 | 2,979 sqft | $143/sqft | built 1990 | Similar size (2,979 sqft); Similar age (1990); Sold after the valuation date
    $425,000
  • 19307 Sun River Ln, Tomball, TX 77377
    August-21-2026 | 3,036 sqft | $140/sqft | built 1998 | Similar size (3,036 sqft); Moderate age difference (9 years newer); Sold after the valuation date
    $425,000
  • 14902 Cactus Wren Dr, Tomball, TX 77377
    October-1-2026 | 2,844 sqft | $188/sqft | built 1996 | 8% size difference (2,844 sqft); Moderate age difference (7 years newer); Sold after the valuation date
    $535,000
  • 15327 Gettysburg Dr, Tomball, TX 77377
    July-31-2026 | 3,208 sqft | $156/sqft | built 1983 | Similar size (3,208 sqft); Moderate age difference (6 years older); Sold after the valuation date
    $499,000
  • 12802 Mossy Ledge Dr, Tomball, TX 77377
    September-25-2026 | 3,239 sqft | $147/sqft | built 2003 | 5% size difference (3,239 sqft); Sold after the valuation date
    $475,000

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.