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

4701 KNOLLWOOD CIR, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

3 bed2 bath1,632 sqftBuilt 1985

Property at a Glance

This home is estimated between $407,222 and $720,385, with a best estimate of $513,855. That places the property below the L580D75C - LEANDER SAM BASS AREA median of $974,644, in a neighborhood that appreciated 7.9% over the past year.

Estimated Value Range

$407,222 $720,385
Best Estimate
$513,855
WCAD Value
$808,995
Low Confidence

Based on 5 comparable properties(1 in the same subdivision)

There are 5 comparable properties within range, but few are in L580D75C - LEANDER SAM BASS AREA. The estimated range of $407,222 and $720,385 should be treated as a rough guide.

Comparable Properties (5)

4705 KNOLLWOOD CIR, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 2,176 sqft Built 1986
Raw Value $886,662
Adjusted Value $720,385

Adjusted -$216,194 for 544 sqft less living space and -$11,232 for being older and +$61,149 for having a garage. Net adjustment: -$166,277.

3 bed 2 bath 1,781 sqft Built 1977
Raw Value $343,629
Adjusted Value $435,418

Adjusted -$59,215 for 149 sqft less living space and +$89,855 for being newer and +$61,149 for having a garage. Net adjustment: +$91,789.

3 bed 2 bath 1,929 sqft Built 1983
Raw Value $502,790
Adjusted Value $407,222

Adjusted -$118,032 for 297 sqft less living space and +$22,464 for being newer. Net adjustment: -$95,568.

3 bed 2 bath 2,036 sqft Built 1978
Raw Value $785,681
Adjusted Value $703,748

Adjusted -$160,556 for 404 sqft less living space and +$78,623 for being newer. Net adjustment: -$81,933.

3 bed 2 bath 1,239 sqft Built 1977
Raw Value $267,816
Adjusted Value $513,855

Adjusted +$156,184 for 393 sqft more living space and +$89,855 for being newer. Net adjustment: +$246,039.

The Neighborhood

This home is valued 17.0% below the L580D75C - LEANDER SAM BASS AREA median of $974,644. That positions it competitively for buyers comparing within the neighborhood. The neighborhood appreciated 7.9% over the past year.

L580D75C - LEANDER SAM BASS AREA

below average
397 Properties
$974,644 Median Value
+7.9% YoY Change
6% Have Pool
81% Have Garage
This Home
$808,995
Median
$974,644

This home is -17.0% below the subdivision median.

Tax Analysis

The estimated annual property tax is $13,923 across all districts. With a homestead exemption claimed, that drops to $12,252 — saving $1,671 per year. That's $1,021 per month a buyer should budget. The assessed value increased +9.8% vs the subdivision average of +7.9%. This increase gives a protest opportunity score of 30 out of 100 — it may be worth challenging the appraisal.

Tax Districts

DistrictTypeRateAnnual Amount
Leander ISDSchool1.0869%$8,793
Williamson CountyCounty0.3694%$2,989
Austin Community Collegespecial0.1034%$837
Williamson County ESD #2 - Sam Bass VFDESD0.1000%$809
Williamson County FM/RdCounty0.0443%$359
Upper Brushy Creek WCIDWater0.0170%$138
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7211%$13,923
30 / 100

Some opportunity.

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $513,855 would pay approximately $3,207 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