Harris Value

18414 Mariner Pl, Humble, TX 77346

3,450 sqft, built 2006, in Walden On Lake Houston Appraised at $408,967 for 2026.

Harris County account 1159850480018

Appraised value
$408,967
Tax year 2026 · after any cap, before exemptions
Living area
3,450 sqft
$119 per sqft
Year built
2006
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 77346, Walden On Lake Houston, and Kingwood 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 3.8% from $394,077 in 2025 to $408,967 in 2026.
  • Appraised value per square footThe current public record shows about $119 per square foot before any comparable-property adjustments.
  • Nearby comparison areaThis page starts the equity review with public records for the Walden On Lake Houston neighborhood and ZIP 77346.
  • Neighborhood value signalAmong 370 residential records in the same neighborhood, the average appraised value is about $121 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about +5.3% on average.

Comparable assessments

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

  • 9027 Rolling Rapids Rd, Humble, TX 77346
    3,436 sqft | $109/sqft | built 2006 | Similar size (3,436 vs 3,450 sqft); Built same year (2006); Similar lot size (9,450 vs 9,211 sqft)
    $375,552
  • 8618 Silver Lure Dr, Humble, TX 77346
    3,320 sqft | $119/sqft | built 2005 | Similar size (3,320 vs 3,450 sqft); Similar age (2005 vs 2006); Similar lot size (9,211 vs 9,211 sqft)
    $393,705
  • 18507 Catamaran Dr, Humble, TX 77346
    3,512 sqft | $106/sqft | built 2005 | Similar size (3,512 vs 3,450 sqft); Similar age (2005 vs 2006); Similar lot size (9,418 vs 9,211 sqft)
    $372,709
  • 18515 Red Sails Pass, Humble, TX 77346
    3,538 sqft | $104/sqft | built 2004 | Similar size (3,538 vs 3,450 sqft); Similar age (2004 vs 2006); Similar lot size (9,058 vs 9,211 sqft)
    $368,746
  • 9015 Sailing Dr, Humble, TX 77346
    3,533 sqft | $111/sqft | built 2004 | Similar size (3,533 vs 3,450 sqft); Similar age (2004 vs 2006); Similar lot size (9,400 vs 9,211 sqft)
    $390,638

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.

  • 18619 Agile Pines Dr, Humble, TX 77346
    September-23-2026 | 3,369 sqft | $115/sqft | built 2002 | Similar size (3,369 sqft); Moderate age difference (4 years older); Sold after the valuation date
    $389,000
  • 12318 Denali Ln, Humble, TX 77346
    September-10-2026 | 3,636 sqft | $118/sqft | built 2008 | 5% size difference (3,636 sqft); Similar age (2008); Sold after the valuation date
    $427,900
  • 12523 Cedar Key Trl, Humble, TX 77346
    June-30-2026 | 3,469 sqft | $168/sqft | built 2007 | Similar size (3,469 sqft); Similar age (2007); Sold after the valuation date
    $582,792
  • 8618 Silver Lure Dr, Humble, TX 77346
    June-29-2026 | 3,320 sqft | $108/sqft | built 2005 | Similar size (3,320 sqft); Similar age (2005); Sold after the valuation date
    $360,000
  • 18803 Half Volley Cir, Humble, TX 77346
    July-27-2026 | 3,551 sqft | $113/sqft | built 1999 | Similar size (3,551 sqft); Moderate age difference (7 years older); Sold after the valuation date
    $399,900

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.