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

849 WHITETAIL DR, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

4 bed2 bath2,138 sqftBuilt 2019

Property at a Glance

This home is estimated between $457,343 and $908,606, with a best estimate of $633,475. That places the property above the G799514C - MAYFIELD RANCH median of $523,371, in a neighborhood that declined 9.3% over the past year.

Estimated Value Range

$457,343 $908,606
Best Estimate
$633,475
WCAD Value
$455,022
Medium Confidence

Based on 5 comparable properties(3 in the same subdivision)

Based on 5 comparable properties (3 in the same subdivision, 2 nearby), the estimated range is $457,343 and $908,606. More comparables in the same subdivision would strengthen this estimate.

Comparable Properties (5)

3736 BAINBRIDGE ST, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 3 bath 1,916 sqft Built 2014
Raw Value $562,011
Adjusted Value $620,352

Adjusted +$49,211 for 222 sqft more living space and +$9,130 for being newer. Net adjustment: +$58,341.

3601 BAINBRIDGE ST, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
4 bed 3 bath 1,916 sqft Built 2016
Raw Value $578,786
Adjusted Value $633,475

Adjusted +$49,211 for 222 sqft more living space and +$5,478 for being newer. Net adjustment: +$54,689.

4149 PRESIDIO LN, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 2,248 sqft Built 2018
Raw Value $479,901
Adjusted Value $457,343

Adjusted -$24,384 for 110 sqft less living space and +$1,826 for being newer. Net adjustment: -$22,558.

3 bed 2 bath 2,221 sqft Built 2014
Raw Value $741,595
Adjusted Value $732,326

Adjusted -$18,399 for 83 sqft less living space and +$9,130 for being newer. Net adjustment: -$9,269.

4 bed 3 bath 2,219 sqft Built 2007
Raw Value $904,649
Adjusted Value $908,606

Adjusted -$17,956 for 81 sqft less living space and +$21,913 for being newer. Net adjustment: +$3,957.

The Neighborhood

This home is valued 13.1% 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
$455,022
Median
$523,371

This home is -13.1% below the subdivision median.

Tax Analysis

The estimated annual property tax is $9,402 across all districts. With a homestead exemption claimed, that drops to $7,847 — saving $1,555 per year. That's $654 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%$4,780
Highlands at Mayfield Ranch MUDMUD0.4850%$2,207
Williamson CountyCounty0.3694%$1,681
Williamson County ESD #9 - Round RockESD0.0999%$455
Williamson County FM/RdCounty0.0443%$202
Upper Brushy Creek WCIDWater0.0170%$77
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax2.0663%$9,402

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $633,475 would pay approximately $3,954 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