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

1821 POSSUM TROT, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

3 bed2 bath1,378 sqftBuilt 1984

Property at a Glance

This home is estimated between $260,643 and $930,613, with a best estimate of $299,356. That places the property below the R202681C - Tonkawa & Oak Springs median of $851,894, in a neighborhood that appreciated 3.7% over the past year.

Estimated Value Range

$260,643 $930,613
Best Estimate
$299,356
WCAD Value
$724,048
Low Confidence

Based on 5 comparable properties(2 in the same subdivision)

There are 5 comparable properties within range, but few are in R202681C - Tonkawa & Oak Springs. The estimated range of $260,643 and $930,613 should be treated as a rough guide.

Comparable Properties (5)

1704 POSSUM TROT, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,405 sqft Built 1984
Raw Value $939,988
Adjusted Value $930,613

Adjusted -$9,375 for 27 sqft less living space. Net adjustment: -$9,375.

1712 POSSUM TROT, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 1,200 sqft Built 1984
Raw Value $760,034
Adjusted Value $821,839

Adjusted +$61,805 for 178 sqft more living space. Net adjustment: +$61,805.

3 bed 2 bath 1,454 sqft Built 1985
Raw Value $294,556
Adjusted Value $260,643

Adjusted -$26,389 for 76 sqft less living space and -$7,524 for being older. Net adjustment: -$33,913.

3 bed 2 bath 1,334 sqft Built 1984
Raw Value $269,659
Adjusted Value $284,937

Adjusted +$15,278 for 44 sqft more living space. Net adjustment: +$15,278.

3 bed 2 bath 1,282 sqft Built 1984
Raw Value $266,023
Adjusted Value $299,356

Adjusted +$33,333 for 96 sqft more living space. Net adjustment: +$33,333.

The Neighborhood

This home is valued 15.0% below the R202681C - Tonkawa & Oak Springs median of $851,894. That positions it competitively for buyers comparing within the neighborhood. The neighborhood appreciated 3.7% over the past year.

R202681C - Tonkawa & Oak Springs

below average
154 Properties
$851,894 Median Value
+3.7% YoY Change
7% Have Pool
92% Have Garage
This Home
$724,048
Median
$851,894

This home is -15.0% below the subdivision median.

Tax Analysis

The estimated annual property tax is $11,058 across all districts. With a homestead exemption claimed, that drops to $9,674 — saving $1,384 per year. That's $806 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%$6,466
Williamson CountyCounty0.3694%$2,675
Austin Community Collegespecial0.1034%$749
Williamson County ESD #2 - Sam Bass VFDESD0.1000%$724
Williamson County FM/RdCounty0.0443%$321
Upper Brushy Creek WCIDWater0.0170%$123
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.5273%$11,058

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $299,356 would pay approximately $1,869 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