Harris Value

21307 Park Willow Dr, Katy, TX 77450

3,008 sqft, built 1978, in Memorial Parkway Appraised at $321,774 for 2026.

Harris County account 1102030000017

Appraised value
$321,774
Tax year 2026 · after any cap, before exemptions
Living area
3,008 sqft
$107 per sqft
Year built
1978
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 77450, Memorial Parkway, and Katy 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 1.6% from $316,551 in 2025 to $321,774 in 2026.
  • Appraised value per square footThe current public record shows about $107 per square foot before any comparable-property adjustments.
  • Nearby comparison areaThis page starts the equity review with public records for the Memorial Parkway neighborhood and ZIP 77450.
  • Neighborhood value signalAmong 674 residential records in the same neighborhood, the average appraised value is about $135 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about +2.2% on average.

Comparable assessments

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

  • 21339 Park York Dr, Katy, TX 77450
    2,924 sqft | $157/sqft | built 1977 | Similar size (2,924 vs 3,008 sqft); Similar age (1977 vs 1978); Similar lot size (7,705 vs 7,980 sqft)
    $460,331
  • 21134 Park York Dr, Katy, TX 77450
    2,903 sqft | $114/sqft | built 1977 | Similar size (2,903 vs 3,008 sqft); Similar age (1977 vs 1978); Similar lot size (7,524 vs 7,980 sqft)
    $332,129
  • 21334 Park Valley Dr, Katy, TX 77450
    2,923 sqft | $126/sqft | built 1978 | Similar size (2,923 vs 3,008 sqft); Built same year (1978); Similar lot size (7,705 vs 7,980 sqft)
    $366,829
  • 1319 Westgreen Blvd, Katy, TX 77450
    3,025 sqft | $97/sqft | built 1978 | Similar size (3,025 vs 3,008 sqft); Built same year (1978); Similar lot size (8,050 vs 7,980 sqft)
    $292,054
  • 21307 Park Bluff Dr, Katy, TX 77450
    3,005 sqft | $106/sqft | built 1977 | Similar size (3,005 vs 3,008 sqft); Similar age (1977 vs 1978); Similar lot size (8,050 vs 7,980 sqft)
    $318,620

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.

  • 20911 Park Brush Cir, Katy, TX 77450
    September-17-2026 | 2,890 sqft | $119/sqft | built 1977 | Similar size (2,890 sqft); Similar age (1977); Sold after the valuation date
    $345,000
  • 1214 Shillington Dr, Katy, TX 77450
    July-9-2026 | 3,024 sqft | $144/sqft | built 1980 | Similar size (3,024 sqft); Similar age (1980); Sold after the valuation date
    $435,000
  • 20115 Dering Ct, Katy, TX 77450
    August-21-2026 | 3,032 sqft | $115/sqft | built 1973 | Similar size (3,032 sqft); Moderate age difference (5 years older); Sold after the valuation date
    $350,000
  • 1402 Sherfield Ridge Dr, Katy, TX 77450
    July-31-2026 | 2,836 sqft | $153/sqft | built 1982 | 6% size difference (2,836 sqft); Moderate age difference (4 years newer); Sold after the valuation date
    $435,000
  • 1122 Rustic Knolls Dr, Katy, TX 77450
    July-14-2026 | 2,925 sqft | $164/sqft | built 1982 | Similar size (2,925 sqft); Moderate age difference (4 years newer); Sold after the valuation date
    $480,000

Public appraisal comparison for 2026. Prepared . Appraisal source: Harris County Appraisal District. Sales data checked in this snapshot: . Matches consider available size, age, location and property characteristics. How comparisons work.