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1405 SYLVIA LN, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

4 bed2 bath1,241 sqftBuilt 1993

Property at a Glance

This home is estimated between $253,762 and $446,317, with a best estimate of $400,621. 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

$253,762 $446,317
Best Estimate
$400,621
WCAD Value
$371,300
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 $253,762 and $446,317. 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 $253,762

Adjusted -$73,274 for 321 sqft less living space. Net adjustment: -$73,274.

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 $446,317

Adjusted +$95,644 for 419 sqft more living space and -$4,023 for being older. Net adjustment: +$91,621.

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 $428,766

Adjusted +$91,307 for 400 sqft more living space and -$4,023 for being older. Net adjustment: +$87,284.

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 $369,206

Adjusted +$14,381 for 63 sqft more living space. Net adjustment: +$14,381.

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 $400,621

Adjusted +$16,435 for 72 sqft more living space. Net adjustment: +$16,435.

The Neighborhood

This home is valued 27.9% 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
$371,300
Median
$290,418

This home is +27.9% above the subdivision median.

Tax Analysis

The estimated annual property tax is $6,681 across all districts. With a homestead exemption claimed, that drops to $5,362 — saving $1,319 per year. That's $447 per month a buyer should budget. The assessed value increased +0.2% vs the subdivision average of -7.8%. This above-average increase gives a protest opportunity score of 40 out of 100 — it may be worth challenging the appraisal.

Tax Districts

DistrictTypeRateAnnual Amount
Round Rock ISDSchool0.8931%$3,316
Round RockCity0.3720%$1,381
Williamson CountyCounty0.3694%$1,372
Austin Community Collegespecial0.1034%$384
Williamson County FM/RdCounty0.0443%$165
Upper Brushy Creek WCIDWater0.0170%$63
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$6,681
40 / 100

Moderate opportunity to protest.

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $400,621 would pay approximately $2,501 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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