Beta Williamson County, TX only — data and coverage are limited during early access.

1809 SYLVIA LN, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

4 bed2 bath1,822 sqftBuilt 1993

Property at a Glance

This home is estimated between $386,386 and $533,245, with a best estimate of $425,501. That places the property above the R123492H - Sam Bass/Hermitage/Somerset R3 median of $290,418, in a neighborhood that declined 7.8% over the past year.

Estimated Value Range

$386,386 $533,245
Best Estimate
$425,501
WCAD Value
$334,485
High Confidence

Based on 5 comparable properties(5 in the same subdivision)

Based on 5 comparable properties in R123492H - Sam Bass/Hermitage/Somerset R3, this home's estimated market value is between $386,386 and $533,245. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

1704 SYLVIA LN, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,562 sqft Built 1993
Raw Value $327,036
Adjusted Value $386,386

Adjusted +$59,350 for 260 sqft more living space. Net adjustment: +$59,350.

1711 SYLVIA LN, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 2 bath 1,178 sqft Built 1993
Raw Value $354,825
Adjusted Value $501,829

Adjusted +$147,004 for 644 sqft more living space. Net adjustment: +$147,004.

1808 SYLVIA LN, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 2 bath 1,169 sqft Built 1993
Raw Value $384,186
Adjusted Value $533,245

Adjusted +$149,059 for 653 sqft more living space. Net adjustment: +$149,059.

1612 SYLVIA LN, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,316 sqft Built 1995
Raw Value $314,021
Adjusted Value $425,501

Adjusted +$115,503 for 506 sqft more living space and -$4,023 for being older. Net adjustment: +$111,480.

1804 SYLVIA LN, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,434 sqft Built 1992
Raw Value $297,007
Adjusted Value $387,586

Adjusted +$88,568 for 388 sqft more living space and +$2,011 for being newer. Net adjustment: +$90,579.

The Neighborhood

This home is valued 15.2% above the R123492H - Sam Bass/Hermitage/Somerset R3 median of $290,418. With 648 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 7.8% over the past year.

R123492H - Sam Bass/Hermitage/Somerset R3

above average
648 Properties
$290,418 Median Value
-7.8% YoY Change
2% Have Pool
89% Have Garage
This Home
$334,485
Median
$290,418

This home is +15.2% above the subdivision median.

Tax Analysis

The estimated annual property tax is $6,018 across all districts. With a homestead exemption claimed, that drops to $4,706 — saving $1,312 per year. That's $392 per month a buyer should budget. The assessed value increased roughly in line with the neighborhood, so a tax protest is unlikely to yield significant savings.

Tax Districts

DistrictTypeRateAnnual Amount
Round Rock ISDSchool0.8931%$2,987
Round RockCity0.3720%$1,244
Williamson CountyCounty0.3694%$1,236
Austin Community Collegespecial0.1034%$346
Williamson County FM/RdCounty0.0443%$148
Upper Brushy Creek WCIDWater0.0170%$57
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$6,018

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $425,501 would pay approximately $2,656 per month (principal and interest only, excluding taxes and insurance).

Data sourced from Williamson County Appraisal District (WCAD), Texas Education Agency (TEA), and Federal Reserve Economic Data (FRED). Assessment values reflect the appraisal district's estimate, not market sale prices. Report generated 4/19/2026.

View full property details