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104 BLACK ST N, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

2 bed1 bath616 sqftBuilt 1940

Property at a Glance

This home is estimated between $54,726 and $283,675, with a best estimate of $218,132. That places the property below the R701575F - OLD TOWN ROUND ROCK median of $319,256, in a neighborhood that appreciated 4.3% over the past year.

Estimated Value Range

$54,726 $283,675
Best Estimate
$218,132
WCAD Value
$182,997
High Confidence

Based on 5 comparable properties(5 in the same subdivision)

Based on 5 comparable properties in R701575F - OLD TOWN ROUND ROCK, this home's estimated market value is between $54,726 and $283,675. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

610 GEORGETOWN ST N, ROUND ROCK, TX 78664
0.00 mi 93% similar Same subdivision
2 bed 1 bath 937 sqft Built 1940
Raw Value $300,552
Adjusted Value $218,132

Adjusted -$82,420 for 321 sqft less living space. Net adjustment: -$82,420.

205 N SHEPPARD ST, ROUND ROCK, TX 78664
0.00 mi 89% similar Same subdivision
2 bed 1 bath 700 sqft Built 1900
Raw Value $181,549
Adjusted Value $283,675

Adjusted -$21,568 for 84 sqft less living space and +$123,694 for being newer. Net adjustment: +$102,126.

611 LEWIS ST N, ROUND ROCK, TX 78664
0.00 mi 87% similar Same subdivision
2 bed 1 bath 1,138 sqft Built 1940
Raw Value $310,984
Adjusted Value $176,955

Adjusted -$134,029 for 522 sqft less living space. Net adjustment: -$134,029.

404 GEORGETOWN ST N, ROUND ROCK, TX 78664
0.00 mi 77% similar Same subdivision
1 bed 1 bath 1,386 sqft Built 1940
Raw Value $376,852
Adjusted Value $54,726

Adjusted -$197,706 for 770 sqft less living space and -$124,420 for no garage. Net adjustment: -$322,126.

605 LEWIS ST N, ROUND ROCK, TX 78664
0.00 mi 76% similar Same subdivision
3 bed 1 bath 1,598 sqft Built 1940
Raw Value $508,047
Adjusted Value $255,908

Adjusted -$252,139 for 982 sqft less living space. Net adjustment: -$252,139.

The Neighborhood

This home is valued 42.7% below the R701575F - OLD TOWN ROUND ROCK median of $319,256. That positions it competitively for buyers comparing within the neighborhood. The neighborhood appreciated 4.3% over the past year.

R701575F - OLD TOWN ROUND ROCK

below average
360 Properties
$319,256 Median Value
+4.3% YoY Change
5% Have Pool
24% Have Garage
This Home
$182,997
Median
$319,256

This home is -42.7% below the subdivision median.

Tax Analysis

The estimated annual property tax is $3,293 across all districts. With a homestead exemption claimed, that drops to $2,008 — saving $1,285 per year. That's $167 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%$1,634
Round RockCity0.3720%$681
Williamson CountyCounty0.3694%$676
Austin Community Collegespecial0.1034%$189
Williamson County FM/RdCounty0.0443%$81
Upper Brushy Creek WCIDWater0.0170%$31
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$3,293

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $218,132 would pay approximately $1,362 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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