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3600 NICHOLAUS CV, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

5 bed4 bath2,614 sqftBuilt 1998

Property at a Glance

This home is estimated between $606,640 and $1,314,786, with a best estimate of $964,506. That places the property below the R546697B - Forest Creek, All Pitt median of $1,106,686, in a neighborhood that appreciated 8.5% over the past year.

Estimated Value Range

$606,640 $1,314,786
Best Estimate
$964,506
WCAD Value
$976,850
High Confidence

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

Based on 5 comparable properties in R546697B - Forest Creek, All Pitt, this home's estimated market value is between $606,640 and $1,314,786. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

3604 NICHOLAUS CV, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
4 bed 3 bath 3,290 sqft Built 1998
Raw Value $849,441
Adjusted Value $606,640

Adjusted -$242,801 for 676 sqft less living space. Net adjustment: -$242,801.

3809 TREVINO DR, ROUND ROCK, TX 78664
0.08 mi 100% similar Same subdivision
5 bed 4 bath 3,001 sqft Built 1998
Raw Value $1,157,682
Adjusted Value $1,018,682

Adjusted -$139,000 for 387 sqft less living space. Net adjustment: -$139,000.

3821 TREVINO DR, ROUND ROCK, TX 78664
0.08 mi 100% similar Same subdivision
5 bed 4 bath 2,778 sqft Built 1999
Raw Value $1,380,042
Adjusted Value $1,314,786

Adjusted -$58,904 for 164 sqft less living space and -$117 for being older and -$6,235 for no pool. Net adjustment: -$65,256.

3800 TREVINO DR, ROUND ROCK, TX 78664
0.08 mi 100% similar Same subdivision
4 bed 4 bath 3,171 sqft Built 1998
Raw Value $1,123,867
Adjusted Value $923,807

Adjusted -$200,060 for 557 sqft less living space. Net adjustment: -$200,060.

3819 TREVINO DR, ROUND ROCK, TX 78664
0.08 mi 100% similar Same subdivision
4 bed 3 bath 3,067 sqft Built 1998
Raw Value $1,127,212
Adjusted Value $964,506

Adjusted -$162,706 for 453 sqft less living space. Net adjustment: -$162,706.

The Neighborhood

This home is valued 11.7% below the R546697B - Forest Creek, All Pitt median of $1,106,686. That positions it competitively for buyers comparing within the neighborhood. The neighborhood appreciated 8.5% over the past year.

R546697B - Forest Creek, All Pitt

typical
64 Properties
$1,106,686 Median Value
+8.5% YoY Change
2% Have Pool
100% Have Garage
This Home
$976,850
Median
$1,106,686

This home is -11.7% below the subdivision median.

Tax Analysis

The estimated annual property tax is $16,981 across all districts. With a homestead exemption claimed, that drops to $15,556 — saving $1,425 per year. That's $1,296 per month a buyer should budget. The assessed value increased +13.9% vs the subdivision average of +8.5%. This above-average increase gives a protest opportunity score of 62 out of 100 — it may be worth challenging the appraisal.

Tax Districts

DistrictTypeRateAnnual Amount
Round Rock ISDSchool0.8931%$8,429
Round RockCity0.3720%$3,511
Williamson CountyCounty0.3694%$3,487
Austin Community Collegespecial0.1034%$976
Williamson County FM/RdCounty0.0443%$418
Upper Brushy Creek WCIDWater0.0170%$160
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$16,981
62 / 100

Moderate opportunity to protest.

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $964,506 would pay approximately $6,020 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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