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502 LAMPASAS ST N, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

2 bed1 bath1,196 sqftBuilt 1971

Property at a Glance

This home is estimated between $299,510 and $725,465, with a best estimate of $462,916. That places the property above the R701575F - OLD TOWN ROUND ROCK median of $319,256, in a neighborhood that appreciated 4.3% over the past year.

Estimated Value Range

$299,510 $725,465
Best Estimate
$462,916
WCAD Value
$504,679
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 $299,510 and $725,465. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

611 LEWIS ST N, ROUND ROCK, TX 78664
0.00 mi 98% similar Same subdivision
2 bed 1 bath 1,138 sqft Built 1940
Raw Value $310,984
Adjusted Value $421,739

Adjusted +$14,892 for 58 sqft more living space and +$95,863 for being newer. Net adjustment: +$110,755.

610 GEORGETOWN ST N, ROUND ROCK, TX 78664
0.00 mi 91% similar Same subdivision
2 bed 1 bath 937 sqft Built 1940
Raw Value $300,552
Adjusted Value $462,916

Adjusted +$66,501 for 259 sqft more living space and +$95,863 for being newer. Net adjustment: +$162,364.

404 GEORGETOWN ST N, ROUND ROCK, TX 78664
0.00 mi 89% similar Same subdivision
1 bed 1 bath 1,386 sqft Built 1940
Raw Value $376,852
Adjusted Value $299,510

Adjusted -$48,785 for 190 sqft less living space and +$95,863 for being newer and -$124,420 for no garage. Net adjustment: -$77,342.

302 BROWN ST N, ROUND ROCK, TX 78664
0.00 mi 88% similar Same subdivision
3 bed 2 bath 1,627 sqft Built 1960
Raw Value $802,113
Adjusted Value $725,465

Adjusted -$110,664 for 431 sqft less living space and +$34,016 for being newer. Net adjustment: -$76,648.

605 LEWIS ST N, ROUND ROCK, TX 78664
0.00 mi 85% similar Same subdivision
3 bed 1 bath 1,598 sqft Built 1940
Raw Value $508,047
Adjusted Value $500,692

Adjusted -$103,218 for 402 sqft less living space and +$95,863 for being newer. Net adjustment: -$7,355.

The Neighborhood

This home is valued 58.1% above the R701575F - OLD TOWN ROUND ROCK median of $319,256. With 360 homes in the subdivision, the property sits in the upper tier. The neighborhood appreciated 4.3% over the past year.

R701575F - OLD TOWN ROUND ROCK

outlier high
360 Properties
$319,256 Median Value
+4.3% YoY Change
5% Have Pool
24% Have Garage
This Home
$504,679
Median
$319,256

This home is +58.1% above the subdivision median.

Tax Analysis

The estimated annual property tax is $9,081 across all districts. With a homestead exemption claimed, that drops to $7,737 — saving $1,344 per year. That's $645 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%$4,507
Round RockCity0.3720%$1,877
Williamson CountyCounty0.3694%$1,865
Austin Community Collegespecial0.1034%$522
Williamson County FM/RdCounty0.0443%$224
Upper Brushy Creek WCIDWater0.0170%$86
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$9,081

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $462,916 would pay approximately $2,890 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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