Williamson Value

3933 Sapphire Loop, Round Rock, TX 78681

3 bathrooms, 3,530 sqft, built 2007, in L495414C - Borho/Mayfield Ranch/Sapphire Loop Appraised at $629,593 for 2026.

Williamson County account 277289

Appraised value
$629,593
Tax year 2026 · after any cap, before exemptions
Living area
3,530 sqft
$178 per sqft
Year built
2007

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 78681, Borho/Mayfield Ranch/Sapphire Loop, 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 decreased 5.4% from $665,705 in 2025 to $629,593 in 2026.
  • Appraised value per square footThe current public record shows about $178 per square foot before any comparable-property adjustments.
  • Nearby comparison areaThis page starts the equity review with public records for the L495414C - Borho/Mayfield Ranch/Sapphire Loop neighborhood and ZIP 78681.
  • Neighborhood value signalAmong 427 residential records in the same neighborhood, the average appraised value is about $194 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about -5.9% on average.

Comparable assessments

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

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.

  • 2903 Bryco Cv, Round Rock, TX 78681
    October-1-2026 | 3,499 sqft | $214/sqft | built 2002 | Similar size (3,499 sqft); Moderate age difference (5 years older); Sold after the valuation date
    $748,000
  • 2701 Michelle Lynne Cv, Round Rock, TX 78681
    September-14-2026 | 3,428 sqft | $214/sqft | built 2001 | Similar size (3,428 sqft); Moderate age difference (6 years older); Sold after the valuation date
    $734,900
  • 2628 Dalea St, Round Rock, TX 78681
    September-15-2026 | 3,765 sqft | $219/sqft | built 2012 | 7% size difference (3,765 sqft); Moderate age difference (5 years newer); Sold after the valuation date
    $825,000
  • 3013 Agave Loop, Round Rock, TX 78681
    September-21-2026 | 3,260 sqft | $191/sqft | built 2012 | 8% size difference (3,260 sqft); Moderate age difference (5 years newer); Sold after the valuation date
    $624,000
  • 3019 Plantation Dr, Round Rock, TX 78681
    July-27-2026 | 3,514 sqft | $185/sqft | built 2000 | Similar size (3,514 sqft); Moderate age difference (7 years older); Sold after the valuation date
    $650,000

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.