Williamson Value

1903 Lime Rock Dr, Round Rock, TX 78681

2,938 sqft, built 1978, in R310479G - Cimarron - All Sections Appraised at $512,718 for 2026.

Williamson County account 116662

Appraised value
$512,718
Tax year 2026 · after any cap, before exemptions
Living area
2,938 sqft
$175 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 78681, Cimarron - All Sections, 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 1.4% from $505,404 in 2025 to $512,718 in 2026.
  • Appraised value per square footThe current public record shows about $175 per square foot before any comparable-property adjustments.
  • Nearby comparison areaThis page starts the equity review with public records for the R310479G - Cimarron - All Sections neighborhood and ZIP 78681.
  • Neighborhood value signalAmong 503 residential records in the same neighborhood, the average appraised value is about $216 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about -3.8% 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.

  • 904 Brookside Ct, Round Rock, TX 78681
    September-1-2026 | 2,874 sqft | $209/sqft | built 1991 | Similar size (2,874 sqft); Sold after the valuation date
    $599,900
  • 2628 Oak Meadow Dr, Round Rock, TX 78681
    June-25-2026 | 3,008 sqft | $228/sqft | built 1980 | Similar size (3,008 sqft); Similar age (1980); Sold after the valuation date
    $685,000
  • 1804 Oakridge Dr, Round Rock, TX 78681
    September-14-2026 | 2,536 sqft | $189/sqft | built 1978 | 14% size difference (2,536 sqft); Similar age (1978); Sold after the valuation date
    $479,900
  • 901 Rock Spring Cv, Round Rock, TX 78681
    September-15-2026 | 2,719 sqft | $213/sqft | built 1990 | 8% size difference (2,719 sqft); Sold after the valuation date
    $579,000
  • 2220 Falkirk Dr, Round Rock, TX 78681
    July-30-2026 | 2,818 sqft | $248/sqft | built 1998 | Similar size (2,818 sqft); Sold after the valuation date
    $699,000

Public appraisal comparison for 2026. Prepared . Appraisal source: Williamson Central 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.

Recent sale history

Recent transfers help establish whether the county value is tracking real market behavior.

  • $450,000 sale recorded on August-7-2026