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

1506 SYLVIA LN, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

3 bed2 bath730 sqftBuilt 1994

Property at a Glance

This home is estimated between $303,642 and $353,721, with a best estimate of $314,133. 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

$303,642 $353,721
Best Estimate
$314,133
WCAD Value
$320,997
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 $303,642 and $353,721. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

1707 SYLVIA LN, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 568 sqft Built 1995
Raw Value $318,753
Adjusted Value $353,721

Adjusted +$36,979 for 162 sqft more living space and -$2,011 for being older. Net adjustment: +$34,968.

1602 SYLVIA LN, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 2 bath 822 sqft Built 1995
Raw Value $354,696
Adjusted Value $331,684

Adjusted -$21,001 for 92 sqft less living space and -$2,011 for being older. Net adjustment: -$23,012.

1601 SYLVIA LN, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 816 sqft Built 1992
Raw Value $319,250
Adjusted Value $303,642

Adjusted -$19,631 for 86 sqft less living space and +$4,023 for being newer. Net adjustment: -$15,608.

1615 SYLVIA LN, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 2 bath 841 sqft Built 1995
Raw Value $341,482
Adjusted Value $314,133

Adjusted -$25,338 for 111 sqft less living space and -$2,011 for being older. Net adjustment: -$27,349.

1616 SYLVIA LN, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 720 sqft Built 1994
Raw Value $308,885
Adjusted Value $311,168

Adjusted +$2,283 for 10 sqft more living space. Net adjustment: +$2,283.

The Neighborhood

This home is valued 10.5% 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

typical
648 Properties
$290,418 Median Value
-7.8% YoY Change
2% Have Pool
89% Have Garage
This Home
$320,997
Median
$290,418

This home is +10.5% above the subdivision median.

Tax Analysis

The estimated annual property tax is $5,776 across all districts. With a homestead exemption claimed, that drops to $4,466 — saving $1,310 per year. That's $372 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%$2,867
Round RockCity0.3720%$1,194
Williamson CountyCounty0.3694%$1,186
Austin Community Collegespecial0.1034%$332
Williamson County FM/RdCounty0.0443%$142
Upper Brushy Creek WCIDWater0.0170%$55
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$5,776

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $314,133 would pay approximately $1,961 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