Beta Williamson County, TX only — data and coverage are limited during early access.

4601 TIFFANY NICOLE ST, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

3 bed2 bath2,121 sqftBuilt 1984

Property at a Glance

This home is estimated between $593,455 and $811,780, with a best estimate of $630,690. That places the property above the R453474G - Southern Hills median of $494,639, in a neighborhood that appreciated 5.5% over the past year.

Estimated Value Range

$593,455 $811,780
Best Estimate
$630,690
WCAD Value
$677,862
High Confidence

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

Based on 5 comparable properties in R453474G - Southern Hills, this home's estimated market value is between $593,455 and $811,780. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

4600 TIFFANY NICOLE ST, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,803 sqft Built 1974
Raw Value $723,402
Adjusted Value $811,780

Adjusted +$93,399 for 318 sqft more living space and -$5,021 for being older. Net adjustment: +$88,378.

4607 TIFFANY NICOLE ST, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,537 sqft Built 1974
Raw Value $483,178
Adjusted Value $643,447

Adjusted +$171,525 for 584 sqft more living space and -$5,021 for being older and -$6,235 for no pool. Net adjustment: +$160,269.

4611 TIFFANY NICOLE ST, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,616 sqft Built 1989
Raw Value $479,858
Adjusted Value $630,690

Adjusted +$148,322 for 505 sqft more living space and +$2,510 for being newer. Net adjustment: +$150,832.

4608 JOSEPH DR, ROUND ROCK, TX 78665
0.12 mi 100% similar Same subdivision
3 bed 2 bath 1,452 sqft Built 1992
Raw Value $392,948
Adjusted Value $593,455

Adjusted +$196,490 for 669 sqft more living space and +$4,017 for being newer. Net adjustment: +$200,507.

4605 JOSEPH DR, ROUND ROCK, TX 78665
0.12 mi 100% similar Same subdivision
3 bed 2 bath 1,620 sqft Built 1975
Raw Value $472,932
Adjusted Value $615,560

Adjusted +$147,147 for 501 sqft more living space and -$4,519 for being older. Net adjustment: +$142,628.

The Neighborhood

This home is valued 37.0% above the R453474G - Southern Hills median of $494,639. With 13 homes in the subdivision, the property sits in the upper tier. The neighborhood appreciated 5.5% over the past year.

R453474G - Southern Hills

above average
13 Properties
$494,639 Median Value
+5.5% YoY Change
8% Have Pool
62% Have Garage
This Home
$677,862
Median
$494,639

This home is +37.0% above the subdivision median.

Tax Analysis

The estimated annual property tax is $10,352 across all districts. With a homestead exemption claimed, that drops to $8,977 — saving $1,375 per year. That's $748 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%$6,054
Williamson CountyCounty0.3694%$2,504
Austin Community Collegespecial0.1034%$701
Williamson County ESD #9 - Round RockESD0.0999%$677
Williamson County FM/RdCounty0.0443%$300
Upper Brushy Creek WCIDWater0.0170%$115
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.5272%$10,352

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $630,690 would pay approximately $3,937 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.

View full property details