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4209 FLAT STONE CT, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

3 bed2 bath1,848 sqftBuilt 2004

Property at a Glance

This home is estimated between $284,634 and $488,461, with a best estimate of $357,960. That places the property below the R417506E - TERAVISTA R4 median of $430,980, in a neighborhood that declined 4.6% over the past year.

Estimated Value Range

$284,634 $488,461
Best Estimate
$357,960
WCAD Value
$369,063
High Confidence

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

Based on 5 comparable properties in R417506E - TERAVISTA R4, this home's estimated market value is between $284,634 and $488,461. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

4201 FLAT STONE CT, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,902 sqft Built 2005
Raw Value $370,015
Adjusted Value $357,960

Adjusted -$12,874 for 54 sqft less living space and +$819 for being newer. Net adjustment: -$12,055.

4210 FLAT STONE CT, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,650 sqft Built 2004
Raw Value $345,986
Adjusted Value $393,192

Adjusted +$47,206 for 198 sqft more living space. Net adjustment: +$47,206.

4207 FLAT STONE CT, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 2,320 sqft Built 2004
Raw Value $397,165
Adjusted Value $284,634

Adjusted -$112,531 for 472 sqft less living space. Net adjustment: -$112,531.

1102 STONE SLOPE CT, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 2,105 sqft Built 2002
Raw Value $365,544
Adjusted Value $302,634

Adjusted -$61,272 for 257 sqft less living space and -$1,638 for being older. Net adjustment: -$62,910.

1103 STONE SLOPE CT, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
4 bed 2 bath 1,664 sqft Built 2003
Raw Value $445,412
Adjusted Value $488,461

Adjusted +$43,868 for 184 sqft more living space and -$819 for being older. Net adjustment: +$43,049.

The Neighborhood

This home is valued 14.4% below the R417506E - TERAVISTA R4 median of $430,980. That positions it competitively for buyers comparing within the neighborhood. Note that values in this subdivision declined 4.6% over the past year.

R417506E - TERAVISTA R4

typical
1,632 Properties
$430,980 Median Value
-4.6% YoY Change
1% Have Pool
99% Have Garage
This Home
$369,063
Median
$430,980

This home is -14.4% below the subdivision median.

Tax Analysis

The estimated annual property tax is $7,066 across all districts. With a homestead exemption claimed, that drops to $5,748 — saving $1,318 per year. That's $479 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%$3,296
Williamson County MUD #10MUD0.3875%$1,430
Williamson CountyCounty0.3694%$1,363
Austin Community Collegespecial0.1034%$382
Williamson County ESD #9 - Round RockESD0.0999%$369
Williamson County FM/RdCounty0.0443%$164
Upper Brushy Creek WCIDWater0.0170%$63
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.9147%$7,066

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $357,960 would pay approximately $2,234 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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