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

4709 KNOLLWOOD CIR, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

3 bed2 bath2,170 sqftBuilt 1980

Property at a Glance

This home is estimated between $463,357 and $878,036, with a best estimate of $653,542. 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

$463,357 $878,036
Best Estimate
$653,542
WCAD Value
$886,127
Low Confidence

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

There are 5 comparable properties within range, but few are in L580D75C - LEANDER SAM BASS AREA. The estimated range of $463,357 and $878,036 should be treated as a rough guide.

Comparable Properties (5)

4717 KNOLLWOOD CIR, ROUND ROCK, TX 78681
0.00 mi 100% similar Same subdivision
3 bed 2 bath 3,795 sqft Built 1980
Raw Value $1,048,008
Adjusted Value $463,357

Adjusted -$645,800 for 1,625 sqft less living space and +$61,149 for having a garage. Net adjustment: -$584,651.

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 $878,036

Adjusted -$2,384 for 6 sqft less living space and -$67,391 for being older and +$61,149 for having a garage. Net adjustment: -$8,626.

3 bed 2 bath 2,036 sqft Built 1978
Raw Value $785,681
Adjusted Value $861,399

Adjusted +$53,254 for 134 sqft more living space and +$22,464 for being newer. Net adjustment: +$75,718.

3 bed 2 bath 1,929 sqft Built 1983
Raw Value $502,790
Adjusted Value $564,871

Adjusted +$95,777 for 241 sqft more living space and -$33,696 for being older. Net adjustment: +$62,081.

3 bed 2 bath 2,482 sqft Built 1983
Raw Value $811,232
Adjusted Value $653,542

Adjusted -$123,994 for 312 sqft less living space and -$33,696 for being older. Net adjustment: -$157,690.

The Neighborhood

This home is valued 9.1% 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

typical
397 Properties
$974,644 Median Value
+7.9% YoY Change
6% Have Pool
81% Have Garage
This Home
$886,127
Median
$974,644

This home is -9.1% below the subdivision median.

Tax Analysis

The estimated annual property tax is $15,251 across all districts. With a homestead exemption claimed, that drops to $13,566 — saving $1,685 per year. That's $1,131 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
Leander ISDSchool1.0869%$9,631
Williamson CountyCounty0.3694%$3,274
Austin Community Collegespecial0.1034%$916
Williamson County ESD #2 - Sam Bass VFDESD0.1000%$886
Williamson County FM/RdCounty0.0443%$393
Upper Brushy Creek WCIDWater0.0170%$151
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7211%$15,251

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $653,542 would pay approximately $4,079 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