Harris Value

14138 Castor St, Tomball, TX 77375

4,502 sqft, built 2003, in North Star Estates Appraised at $573,155 for 2026.

Harris County account 1211380010018

Appraised value
$573,155
Tax year 2026 · after any cap, before exemptions
Market value
$644,064
Living area
4,502 sqft
$127 per sqft
Year built
2003
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 77375 and North Star Estates 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 $521,050 in 2025 to $573,155 in 2026.
  • Appraised value per square footThe current public record shows about $127 per square foot before any comparable-property adjustments.
  • Market/appraised spreadThe county market value is $70,909 above the appraised value used on this page.
  • Nearby comparison areaThis page starts the equity review with public records for the North Star Estates neighborhood and ZIP 77375.
  • Neighborhood value signalAmong 27 residential records in the same neighborhood, the average appraised value is about $149 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about +9.5% on average.

Comparable assessments

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

  • 31415 Rigel Ct, Tomball, TX 77375
    4,459 sqft | $150/sqft | built 2001 | Similar size (4,459 vs 4,502 sqft); Similar age (2001 vs 2003); Similar lot size (14,247 vs 14,285 sqft)
    $667,375
  • 14139 Castor St, Tomball, TX 77375
    4,540 sqft | $129/sqft | built 2001 | Similar size (4,540 vs 4,502 sqft); Similar age (2001 vs 2003); Similar lot size (15,146 vs 14,285 sqft)
    $586,952
  • 31410 Rigel Ct, Tomball, TX 77375
    4,574 sqft | $119/sqft | built 2001 | Similar size (4,574 vs 4,502 sqft); Similar age (2001 vs 2003); Similar lot size (15,175 vs 14,285 sqft)
    $543,657
  • 31406 Rigel Ct, Tomball, TX 77375
    4,027 sqft | $131/sqft | built 2001 | 11% smaller (4,027 vs 4,502 sqft); Similar age (2001 vs 2003); Lot 18% smaller (11,672 vs 14,285 sqft)
    $525,749
  • 31402 Spica St, Tomball, TX 77375
    3,634 sqft | $159/sqft | built 2002 | Similar age (2002 vs 2003); Lot 10% smaller (12,824 vs 14,285 sqft); Same quality (Good)
    $578,619

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.

  • 9039 Charncross Ln, Tomball, TX 77375
    July-31-2026 | 4,109 sqft | $134/sqft | built 2015 | 9% size difference (4,109 sqft); Sold after the valuation date
    $549,999
  • 21623 Country Club Green Dr, Tomball, TX 77375
    May-22-2026 | 4,777 sqft | $115/sqft | built 2005 | 6% size difference (4,777 sqft); Similar age (2005); Sold after the valuation date
    $550,000
  • 25003 Stela Falls Ln, Tomball, TX 77375
    September-24-2026 | 4,190 sqft | $190/sqft | built 2022 | 7% size difference (4,190 sqft); Sold after the valuation date
    $795,000
  • 19 Brittany Rose Pl, Tomball, TX 77375
    September-30-2026 | 4,379 sqft | $228/sqft | built 2014 | Similar size (4,379 sqft); Sold after the valuation date
    $999,000
  • 22634 Miramar Crest Dr, Tomball, TX 77375
    July-24-2026 | 4,878 sqft | $92/sqft | built 2003 | 8% size difference (4,878 sqft); Similar age (2003); Sold after the valuation date
    $450,000

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.