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512/514 GREENLAWN BLVD, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

3 bed4 bath1,821 sqftBuilt 1984

Property at a Glance

This home is estimated between $340,641 and $369,319, with a best estimate of $346,567. That places the property below the R450X - Round Rock East - Duplex median of $355,449, in a neighborhood that declined 8.7% over the past year.

Estimated Value Range

$340,641 $369,319
Best Estimate
$346,567
WCAD Value
$357,127
High Confidence

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

Based on 5 comparable properties in R450X - Round Rock East - Duplex, this home's estimated market value is between $340,641 and $369,319. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

514/516 SIERRA CV, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 4 bath 1,821 sqft Built 1984
Raw Value $342,026
Adjusted Value $342,026

This comparable closely matches the subject property's features.

510/512 SIERRA CV, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 4 bath 1,815 sqft Built 1984
Raw Value $339,475
Adjusted Value $340,641

Adjusted +$1,166 for 6 sqft more living space. Net adjustment: +$1,166.

510/512 WILLOWBEND CV, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 4 bath 1,770 sqft Built 1984
Raw Value $336,657
Adjusted Value $346,567

Adjusted +$9,910 for 51 sqft more living space. Net adjustment: +$9,910.

517/519 GREENLAWN BLVD, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 4 bath 1,772 sqft Built 1984
Raw Value $359,798
Adjusted Value $369,319

Adjusted +$9,521 for 49 sqft more living space. Net adjustment: +$9,521.

513/515 TEXAS AVE, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
4 bed 4 bath 2,102 sqft Built 1985
Raw Value $417,617
Adjusted Value $362,015

Adjusted -$54,602 for 281 sqft less living space and -$1,000 for being older. Net adjustment: -$55,602.

The Neighborhood

This home is in line with the R450X - Round Rock East - Duplex median of $355,449. Note that values in this subdivision declined 8.7% over the past year.

R450X - Round Rock East - Duplex

typical
836 Properties
$355,449 Median Value
-8.7% YoY Change
0% Have Pool
84% Have Garage
This Home
$357,127
Median
$355,449

This home is +0.5% above the subdivision median.

Tax Analysis

The estimated annual property tax is $6,426 across all districts. With a homestead exemption claimed, that drops to $5,109 — saving $1,317 per year. That's $426 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%$3,190
Round RockCity0.3720%$1,329
Williamson CountyCounty0.3694%$1,319
Austin Community Collegespecial0.1034%$369
Williamson County FM/RdCounty0.0443%$158
Upper Brushy Creek WCIDWater0.0170%$61
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$6,426

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $346,567 would pay approximately $2,163 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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