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1618 SYLVIA LN, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

4 bed2 bath779 sqftBuilt 1994

Property at a Glance

This home is estimated between $265,757 and $364,906, with a best estimate of $325,318. 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

$265,757 $364,906
Best Estimate
$325,318
WCAD Value
$344,064
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 $265,757 and $364,906. 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 $364,906

Adjusted +$48,164 for 211 sqft more living space and -$2,011 for being older. Net adjustment: +$46,153.

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 $342,870

Adjusted -$9,815 for 43 sqft less living space and -$2,011 for being older. Net adjustment: -$11,826.

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 $314,827

Adjusted -$8,446 for 37 sqft less living space and +$4,023 for being newer. Net adjustment: -$4,423.

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 $325,318

Adjusted -$14,153 for 62 sqft less living space and -$2,011 for being older. Net adjustment: -$16,164.

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 $265,757

Adjusted -$91,079 for 399 sqft less living space and +$2,011 for being newer. Net adjustment: -$89,068.

The Neighborhood

This home is valued 18.5% 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

above average
648 Properties
$290,418 Median Value
-7.8% YoY Change
2% Have Pool
89% Have Garage
This Home
$344,064
Median
$290,418

This home is +18.5% above the subdivision median.

Tax Analysis

The estimated annual property tax is $6,191 across all districts. With a homestead exemption claimed, that drops to $4,877 — saving $1,314 per year. That's $406 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%$3,073
Round RockCity0.3720%$1,280
Williamson CountyCounty0.3694%$1,271
Austin Community Collegespecial0.1034%$356
Williamson County FM/RdCounty0.0443%$153
Upper Brushy Creek WCIDWater0.0170%$58
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$6,191

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $325,318 would pay approximately $2,031 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 4/18/2026.

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