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

4118 VAN NESS AVE, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

4 bed3 bath1,506 sqftBuilt 2017

Property at a Glance

This home is estimated between $313,363 and $551,340, with a best estimate of $428,140. That places the property below the G799514C - MAYFIELD RANCH median of $523,371, in a neighborhood that declined 9.3% over the past year.

Estimated Value Range

$313,363 $551,340
Best Estimate
$428,140
WCAD Value
$488,556
High Confidence

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

Based on 5 comparable properties in G799514C - MAYFIELD RANCH, this home's estimated market value is between $313,363 and $551,340. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

4148 VAN NESS AVE, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 3 bath 1,801 sqft Built 2017
Raw Value $493,534
Adjusted Value $428,140

Adjusted -$65,394 for 295 sqft less living space. Net adjustment: -$65,394.

4144 VAN NESS AVE, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 3 bath 1,156 sqft Built 2017
Raw Value $459,163
Adjusted Value $536,749

Adjusted +$77,586 for 350 sqft more living space. Net adjustment: +$77,586.

4115 VAN NESS AVE, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,805 sqft Built 2017
Raw Value $409,168
Adjusted Value $342,888

Adjusted -$66,280 for 299 sqft less living space. Net adjustment: -$66,280.

4159 VAN NESS AVE, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 3 bath 2,292 sqft Built 2017
Raw Value $487,598
Adjusted Value $313,363

Adjusted -$174,235 for 786 sqft less living space. Net adjustment: -$174,235.

4110 VAN NESS AVE, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 3 bath 1,166 sqft Built 2017
Raw Value $475,971
Adjusted Value $551,340

Adjusted +$75,369 for 340 sqft more living space. Net adjustment: +$75,369.

The Neighborhood

This home is valued 6.7% below the G799514C - MAYFIELD RANCH median of $523,371. That positions it competitively for buyers comparing within the neighborhood. Note that values in this subdivision declined 9.3% over the past year.

G799514C - MAYFIELD RANCH

typical
1,093 Properties
$523,371 Median Value
-9.3% YoY Change
1% Have Pool
100% Have Garage
This Home
$488,556
Median
$523,371

This home is -6.7% below the subdivision median.

Tax Analysis

The estimated annual property tax is $10,095 across all districts. With a homestead exemption claimed, that drops to $8,534 — saving $1,561 per year. That's $711 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
Georgetown ISDSchool1.0506%$5,133
Highlands at Mayfield Ranch MUDMUD0.4850%$2,369
Williamson CountyCounty0.3694%$1,805
Williamson County ESD #9 - Round RockESD0.0999%$488
Williamson County FM/RdCounty0.0443%$217
Upper Brushy Creek WCIDWater0.0170%$83
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax2.0663%$10,095

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $428,140 would pay approximately $2,672 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