Harris Value

21403 Rose Loch Ln, Tomball, TX 77377

3,868 sqft, built 2021 Appraised at $543,799 for 2026.

Harris County account 1406980020001

Appraised value
$543,799
Tax year 2026 · after any cap, before exemptions
Living area
3,868 sqft
$141 per sqft
Year built
2021
Good 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 HCAD Appraisal Area 2548.11 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 decreased 4.1% from $567,310 in 2025 to $543,799 in 2026.
  • Appraised value per square footThe current public record shows about $141 per square foot before any comparable-property adjustments.
  • Nearby comparison areaThis page starts the equity review with public records for ZIP 77377.
  • Neighborhood value signalAmong 202 residential records in the same neighborhood, the average appraised value is about $157 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about -0.8% on average.

Comparable assessments

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

  • 21435 Rose Loch Ln, Tomball, TX 77377
    3,788 sqft | $152/sqft | built 2019 | Similar size (3,788 vs 3,868 sqft); Similar age (2019 vs 2021); Similar lot size (12,736 vs 12,394 sqft)
    $576,138
  • 21311 Rose Loch Ln, Tomball, TX 77377
    3,905 sqft | $148/sqft | built 2020 | Similar size (3,905 vs 3,868 sqft); Similar age (2020 vs 2021); Lot 12% larger (13,836 vs 12,394 sqft)
    $579,179
  • 21322 Rose Loch Ln, Tomball, TX 77377
    3,681 sqft | $144/sqft | built 2020 | Similar size (3,681 vs 3,868 sqft); Similar age (2020 vs 2021); Similar lot size (11,377 vs 12,394 sqft)
    $531,458
  • 21302 Rose Loch Ln, Tomball, TX 77377
    3,958 sqft | $143/sqft | built 2021 | Similar size (3,958 vs 3,868 sqft); Built same year (2021); Lot 15% smaller (10,521 vs 12,394 sqft)
    $564,067
  • 21318 Rose Loch Ln, Tomball, TX 77377
    4,060 sqft | $141/sqft | built 2020 | Similar size (4,060 vs 3,868 sqft); Similar age (2020 vs 2021); Lot 11% larger (13,726 vs 12,394 sqft)
    $571,424

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.