Harris Value

21314 Castlemont Ln, Spring, TX 77388

2,470 sqft, built 1982, in Bridgestone Appraised at $255,136 for 2026.

Harris County account 1147370050009

Appraised value
$255,136
Tax year 2026 · after any cap, before exemptions
Living area
2,470 sqft
$103 per sqft
Year built
1982
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 4.0% from $265,873 in 2025 to $255,136 in 2026.
  • Appraised value per square footThe current public record shows about $103 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.

  • 4723 Towermont Ln, Spring, TX 77388
    2,457 sqft | $104/sqft | built 1982 | Similar size (2,457 vs 2,470 sqft); Built same year (1982); Similar lot size (10,554 vs 11,050 sqft)
    $256,060
  • 5003 Nightshade Ct, Spring, TX 77388
    2,539 sqft | $112/sqft | built 1984 | Similar size (2,539 vs 2,470 sqft); Similar age (1984 vs 1982); Similar lot size (11,217 vs 11,050 sqft)
    $283,641
  • 21210 Castlemont Ln, Spring, TX 77388
    2,438 sqft | $104/sqft | built 1983 | Similar size (2,438 vs 2,470 sqft); Similar age (1983 vs 1982); Similar lot size (11,900 vs 11,050 sqft)
    $253,356
  • 4715 Larksong Ln, Spring, TX 77388
    2,478 sqft | $113/sqft | built 1982 | Similar size (2,478 vs 2,470 sqft); Built same year (1982); Lot 12% smaller (9,750 vs 11,050 sqft)
    $279,861
  • 20918 Marcin Dr, Spring, TX 77388
    2,568 sqft | $112/sqft | built 1986 | Similar size (2,568 vs 2,470 sqft); Similar age (1986 vs 1982); Similar lot size (10,750 vs 11,050 sqft)
    $288,556

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 (5 years older); Sold after the valuation date
    $279,500
  • 17510 Sorrel Ridge Dr, Spring, TX 77388
    August-19-2026 | 2,425 sqft | $136/sqft | built 1977 | Similar size (2,425 sqft); Moderate age difference (5 years older); Sold after the valuation date
    $330,000
  • 17422 Sorrel Ridge Dr, Spring, TX 77388
    August-19-2026 | 2,432 sqft | $154/sqft | built 1977 | Similar size (2,432 sqft); Moderate age difference (5 years older); Sold after the valuation date
    $375,000
  • 518 Magic Oaks Dr, Spring, TX 77388
    September-18-2026 | 2,334 sqft | $139/sqft | built 1971 | 6% size difference (2,334 sqft); Sold after the valuation date
    $325,000
  • 3414 Flaming Candle Dr, Spring, TX 77388
    August-14-2026 | 2,442 sqft | $130/sqft | built 1977 | Similar size (2,442 sqft); Moderate age difference (5 years older); Sold after the valuation date
    $318,000

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.