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1603 SYLVIA LN, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

3 bed2 bath814 sqftBuilt 1992

Property at a Glance

This home is estimated between $269,725 and $368,873, with a best estimate of $329,285. 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

$269,725 $368,873
Best Estimate
$329,285
WCAD Value
$364,168
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 $269,725 and $368,873. 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 $368,873

Adjusted +$56,154 for 246 sqft more living space and -$6,034 for being older. Net adjustment: +$50,120.

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 $346,836

Adjusted -$1,826 for 8 sqft less living space and -$6,034 for being older. Net adjustment: -$7,860.

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 $318,793

Adjusted -$457 for 2 sqft less living space. Net adjustment: -$457.

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 $329,285

Adjusted -$6,163 for 27 sqft less living space and -$6,034 for being older. Net adjustment: -$12,197.

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 $269,725

Adjusted -$83,089 for 364 sqft less living space and -$2,011 for being older. Net adjustment: -$85,100.

The Neighborhood

This home is valued 25.4% 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
$364,168
Median
$290,418

This home is +25.4% above the subdivision median.

Tax Analysis

The estimated annual property tax is $6,552 across all districts. With a homestead exemption claimed, that drops to $5,235 — saving $1,317 per year. That's $436 per month a buyer should budget. The assessed value increased -0.6% vs the subdivision average of -7.8%. This above-average increase gives a protest opportunity score of 36 out of 100 — it may be worth challenging the appraisal.

Tax Districts

DistrictTypeRateAnnual Amount
Round Rock ISDSchool0.8931%$3,252
Round RockCity0.3720%$1,355
Williamson CountyCounty0.3694%$1,345
Austin Community Collegespecial0.1034%$377
Williamson County FM/RdCounty0.0443%$161
Upper Brushy Creek WCIDWater0.0170%$62
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$6,552
36 / 100

Some opportunity.

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $329,285 would pay approximately $2,055 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.

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