Williamson Value

4400 CR 123, Round Rock, TX 78664

1,803 sqft, built 1978, in H005D86H - Hutto Abstracts Appraised at $428,977 for 2026.

Williamson County account 160178

Appraised value
$428,977
Tax year 2026 · after any cap, before exemptions
Market value
$477,629
Living area
1,803 sqft
$238 per sqft
Year built
1978

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 78664, Hutto Abstracts, and Round Rock 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 mailed, 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 WCAD records highlight what may be worth checking before you file.

  • Assessment changeThe appraised value increased 10.0% from $389,979 in 2025 to $428,977 in 2026.
  • Appraised value per square footThe current public record shows about $238 per square foot before any comparable-property adjustments.
  • Market/appraised spreadThe county market value is $48,652 above the appraised value used on this page.
  • Nearby comparison areaThis page starts the equity review with public records for the H005D86H - Hutto Abstracts neighborhood and ZIP 78664.
  • Neighborhood value signalAmong 396 residential records in the same neighborhood, the average appraised value is about $280 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about +5.2% on average.

Comparable assessments

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

  • 4344 County Road 123, Round Rock, TX 78664
    1,742 sqft | $236/sqft | built 1980 | Similar size (1,742 vs 1,803 sqft); Similar age (1980 vs 1978); Similar lot size (43,560 vs 43,560 sqft)
    $411,574
  • 2300 County Road 107, Hutto, TX 78634
    1,877 sqft | $200/sqft | built 1976 | Similar size (1,877 vs 1,803 sqft); Similar age (1976 vs 1978); Similar lot size (43,560 vs 43,560 sqft)
    $375,596
  • 4320 CR 123, Round Rock, TX 78664
    1,836 sqft | $222/sqft | built 1984 | Similar size (1,836 vs 1,803 sqft); Similar lot size (43,560 vs 43,560 sqft); Same neighborhood
    $408,389
  • 4408 CR 123, Hutto, TX 78634
    1,764 sqft | $248/sqft | built 1984 | Similar size (1,764 vs 1,803 sqft); Similar lot size (43,560 vs 43,560 sqft); Same neighborhood
    $438,010
  • 351 CR 394, Hutto, TX 78634
    1,913 sqft | $208/sqft | built 1980 | 6% larger (1,913 vs 1,803 sqft); Similar age (1980 vs 1978); Similar lot size (43,560 vs 43,560 sqft)
    $398,239

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.

  • 526 Dennis Dr, Round Rock, TX 78664
    June-29-2026 | 1,688 sqft | $175/sqft | built 1976 | 6% size difference (1,688 sqft); Similar age (1976); Sold after the valuation date
    $295,000
  • 300 Pecan Ln, Round Rock, TX 78664
    July-20-2026 | 1,832 sqft | $172/sqft | built 1985 | Similar size (1,832 sqft); Moderate age difference (7 years newer); Sold after the valuation date
    $315,000
  • 2103 Lancaster Gate Cv, Round Rock, TX 78664
    September-23-2026 | 1,748 sqft | $123/sqft | built 1986 | Similar size (1,748 sqft); Moderate age difference (8 years newer); Sold after the valuation date
    $215,000
  • 2118 Zephyr Ln, Round Rock, TX 78664
    June-22-2026 | 1,792 sqft | $190/sqft | built 1985 | Similar size (1,792 sqft); Moderate age difference (7 years newer); Sold after the valuation date
    $340,000
  • 304 White Wing Way, Round Rock, TX 78664
    August-26-2026 | 2,016 sqft | $176/sqft | built 1977 | 12% size difference (2,016 sqft); Similar age (1977); Sold after the valuation date
    $355,000

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