Harris Value

21802 Castlemont Ln, Spring, TX 77388

2,517 sqft, built 1984, in Bridgestone Appraised at $332,599 for 2026.

Harris County account 1152570080006

Appraised value
$332,599
Tax year 2026 · after any cap, before exemptions
Living area
2,517 sqft
$132 per sqft
Year built
1984
Average 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 77388 and Bridgestone 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 2.8% from $342,264 in 2025 to $332,599 in 2026.
  • Appraised value per square footThe current public record shows about $132 per square foot before any comparable-property adjustments.
  • Nearby comparison areaThis page starts the equity review with public records for the Bridgestone neighborhood and ZIP 77388.
  • Neighborhood value signalAmong 1,359 residential records in the same neighborhood, the average appraised value is about $133 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about -1.5% on average.

Comparable assessments

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

  • 4803 Diehlwood Pl, Spring, TX 77388
    2,552 sqft | $106/sqft | built 1983 | Similar size (2,552 vs 2,517 sqft); Similar age (1983 vs 1984); Similar lot size (13,580 vs 13,920 sqft)
    $269,908
  • 4911 Bridgeville Ln, Spring, TX 77388
    2,567 sqft | $115/sqft | built 1985 | Similar size (2,567 vs 2,517 sqft); Similar age (1985 vs 1984); Similar lot size (12,748 vs 13,920 sqft)
    $296,369
  • 4947 Bridgemont Ln, Spring, TX 77388
    2,542 sqft | $112/sqft | built 1983 | Similar size (2,542 vs 2,517 sqft); Similar age (1983 vs 1984); Lot 16% larger (16,142 vs 13,920 sqft)
    $284,850
  • 21210 Castlemont Ln, Spring, TX 77388
    2,438 sqft | $104/sqft | built 1983 | Similar size (2,438 vs 2,517 sqft); Similar age (1983 vs 1984); Lot 15% smaller (11,900 vs 13,920 sqft)
    $253,356
  • 5003 Nightshade Ct, Spring, TX 77388
    2,539 sqft | $112/sqft | built 1984 | Similar size (2,539 vs 2,517 sqft); Built same year (1984); Lot 19% smaller (11,217 vs 13,920 sqft)
    $283,641

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.

  • 17611 Sorrel Ridge Dr, Spring, TX 77388
    September-11-2026 | 2,526 sqft | $111/sqft | built 1977 | Similar size (2,526 sqft); Moderate age difference (7 years older); Sold after the valuation date
    $279,500
  • 2702 Morning Leaf Ct, Spring, TX 77388
    September-11-2026 | 2,651 sqft | $94/sqft | built 1986 | 5% size difference (2,651 sqft); Similar age (1986); Sold after the valuation date
    $250,000
  • 3422 Candlewisp Dr, Spring, TX 77388
    September-17-2026 | 2,762 sqft | $103/sqft | built 1974 | 10% size difference (2,762 sqft); Moderate age difference (10 years older); Sold after the valuation date
    $285,000
  • 17615 Sorrel Ridge Dr, Spring, TX 77388
    August-13-2026 | 2,325 sqft | $129/sqft | built 1977 | 8% size difference (2,325 sqft); Moderate age difference (7 years older); Sold after the valuation date
    $299,000
  • 19603 Dogwood Walk Ct, Spring, TX 77388
    August-6-2026 | 2,467 sqft | $162/sqft | built 1998 | Similar size (2,467 sqft); 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.