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507 WINDSOR RD, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

3 bed2 bath1,521 sqftBuilt 1977

Property at a Glance

This home is estimated between $268,831 and $308,862, with a best estimate of $295,682. That places the property below the R604482H - KENSINGTON / WINDY TERRACE 1985 AND OLDER median of $312,111, in a neighborhood that declined 9.7% over the past year.

Estimated Value Range

$268,831 $308,862
Best Estimate
$295,682
WCAD Value
$297,637
High Confidence

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

Based on 5 comparable properties in R604482H - KENSINGTON / WINDY TERRACE 1985 AND OLDER, this home's estimated market value is between $268,831 and $308,862. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

703 WINDSOR RD, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,668 sqft Built 1978
Raw Value $333,824
Adjusted Value $303,013

Adjusted -$30,883 for 147 sqft less living space and +$72 for being newer. Net adjustment: -$30,811.

801 WINDSOR RD, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,488 sqft Built 1978
Raw Value $280,394
Adjusted Value $287,399

Adjusted +$6,933 for 33 sqft more living space and +$72 for being newer. Net adjustment: +$7,005.

701 WINDSOR RD, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,570 sqft Built 1978
Raw Value $279,053
Adjusted Value $268,831

Adjusted -$10,294 for 49 sqft less living space and +$72 for being newer. Net adjustment: -$10,222.

706 WINDSOR RD, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,683 sqft Built 1978
Raw Value $329,645
Adjusted Value $295,682

Adjusted -$34,035 for 162 sqft less living space and +$72 for being newer. Net adjustment: -$33,963.

502 WINDSOR RD, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,537 sqft Built 1978
Raw Value $312,151
Adjusted Value $308,862

Adjusted -$3,361 for 16 sqft less living space and +$72 for being newer. Net adjustment: -$3,289.

The Neighborhood

This home is valued 4.6% below the R604482H - KENSINGTON / WINDY TERRACE 1985 AND OLDER median of $312,111. That positions it competitively for buyers comparing within the neighborhood. Note that values in this subdivision declined 9.7% over the past year.

R604482H - KENSINGTON / WINDY TERRACE 1985 AND OLDER

typical
459 Properties
$312,111 Median Value
-9.7% YoY Change
2% Have Pool
94% Have Garage
This Home
$297,637
Median
$312,111

This home is -4.6% below the subdivision median.

Tax Analysis

The estimated annual property tax is $5,355 across all districts. With a homestead exemption claimed, that drops to $4,050 — saving $1,305 per year. That's $338 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%$2,658
Round RockCity0.3720%$1,107
Williamson CountyCounty0.3694%$1,100
Austin Community Collegespecial0.1034%$308
Williamson County FM/RdCounty0.0443%$132
Upper Brushy Creek WCIDWater0.0170%$51
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$5,355

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $295,682 would pay approximately $1,846 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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