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

3521 CISCO TRL, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

3 bed2 bath1,134 sqftBuilt 2006

Property at a Glance

This home is estimated between $145,230 and $350,202, with a best estimate of $320,691. That places the property above the R402401F - Lakeside Sub Sec 1 median of $311,433, in a neighborhood that declined 11.3% over the past year.

Estimated Value Range

$145,230 $350,202
Best Estimate
$320,691
WCAD Value
$345,717
High Confidence

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

Based on 5 comparable properties in R402401F - Lakeside Sub Sec 1, this home's estimated market value is between $145,230 and $350,202. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

3512 CISCO TRL, ROUND ROCK, TX 78665
0.02 mi 100% similar Same subdivision
3 bed 2 bath 1,250 sqft Built 2005
Raw Value $351,126
Adjusted Value $320,691

Adjusted -$34,202 for 116 sqft less living space and +$3,767 for being newer. Net adjustment: -$30,435.

3700 PALO PINTO CV, ROUND ROCK, TX 78665
0.02 mi 100% similar Same subdivision
4 bed 2 bath 1,313 sqft Built 2005
Raw Value $387,413
Adjusted Value $338,403

Adjusted -$52,777 for 179 sqft less living space and +$3,767 for being newer. Net adjustment: -$49,010.

3701 PALO PINTO CV, ROUND ROCK, TX 78665
0.02 mi 100% similar Same subdivision
3 bed 2 bath 1,134 sqft Built 2005
Raw Value $346,435
Adjusted Value $350,202

Adjusted +$3,767 for being newer. Net adjustment: +$3,767.

3508 CISCO TRL, ROUND ROCK, TX 78665
0.02 mi 100% similar Same subdivision
3 bed 2 bath 1,575 sqft Built 2005
Raw Value $281,166
Adjusted Value $154,907

Adjusted -$130,026 for 441 sqft less living space and +$3,767 for being newer. Net adjustment: -$126,259.

3516 CISCO TRL, ROUND ROCK, TX 78665
0.03 mi 100% similar Same subdivision
3 bed 1,611 sqft Built 2005
Raw Value $282,103
Adjusted Value $145,230

Adjusted -$140,640 for 477 sqft less living space and +$3,767 for being newer. Net adjustment: -$136,873.

The Neighborhood

This home is valued 11.0% above the R402401F - Lakeside Sub Sec 1 median of $311,433. With 135 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 11.3% over the past year.

R402401F - Lakeside Sub Sec 1

typical
135 Properties
$311,433 Median Value
-11.3% YoY Change
1% Have Pool
100% Have Garage
This Home
$345,717
Median
$311,433

This home is +11.0% above the subdivision median.

Tax Analysis

The estimated annual property tax is $6,220 across all districts. With a homestead exemption claimed, that drops to $4,906 — saving $1,314 per year. That's $409 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%$3,088
Round RockCity0.3720%$1,286
Williamson CountyCounty0.3694%$1,277
Austin Community Collegespecial0.1034%$357
Williamson County FM/RdCounty0.0443%$153
Upper Brushy Creek WCIDWater0.0170%$59
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$6,220

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $320,691 would pay approximately $2,002 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