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1816 SYLVIA LN, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

4 bed2 bath815 sqftBuilt 1993

Property at a Glance

This home is estimated between $271,964 and $349,075, with a best estimate of $328,559. 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

$271,964 $349,075
Best Estimate
$328,559
WCAD Value
$354,613
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 $271,964 and $349,075. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

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 $349,075

Adjusted -$1,598 for 7 sqft less living space and -$4,023 for being older. Net adjustment: -$5,621.

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 $321,033

Adjusted -$228 for 1 sqft less living space and +$2,011 for being newer. Net adjustment: +$1,783.

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 $331,524

Adjusted -$5,935 for 26 sqft less living space and -$4,023 for being older. Net adjustment: -$9,958.

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 $271,964

Adjusted -$82,861 for 363 sqft less living space. Net adjustment: -$82,861.

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 $328,559

Adjusted +$21,685 for 95 sqft more living space and -$2,011 for being older. Net adjustment: +$19,674.

The Neighborhood

This home is valued 22.1% 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
$354,613
Median
$290,418

This home is +22.1% above the subdivision median.

Tax Analysis

The estimated annual property tax is $6,380 across all districts. With a homestead exemption claimed, that drops to $5,065 — saving $1,315 per year. That's $422 per month a buyer should budget. The assessed value increased -1.4% vs the subdivision average of -7.8%. This above-average increase gives a protest opportunity score of 32 out of 100 — it may be worth challenging the appraisal.

Tax Districts

DistrictTypeRateAnnual Amount
Round Rock ISDSchool0.8931%$3,167
Round RockCity0.3720%$1,319
Williamson CountyCounty0.3694%$1,310
Austin Community Collegespecial0.1034%$367
Williamson County FM/RdCounty0.0443%$157
Upper Brushy Creek WCIDWater0.0170%$60
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$6,380
32 / 100

Some opportunity.

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $328,559 would pay approximately $2,051 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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