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

1902 MONTCLAIR DR, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

3 bed2 bath1,602 sqftBuilt 1971

Property at a Glance

This home is estimated between $290,923 and $360,779, with a best estimate of $324,234. That places the property above the R605477I - South Park, Southern Terrace, Cushing PA median of $311,935, in a neighborhood that appreciated 0.3% over the past year.

Estimated Value Range

$290,923 $360,779
Best Estimate
$324,234
WCAD Value
$312,250
Low Confidence

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

There are 5 comparable properties within range, but few are in R605477I - South Park, Southern Terrace, Cushing PA. The estimated range of $290,923 and $360,779 should be treated as a rough guide.

Comparable Properties (5)

1905 MONTCLAIR DR, ROUND ROCK, TX 78664
0.00 mi 100% similar Same subdivision
3 bed 1 bath 1,667 sqft Built 1975
Raw Value $341,610
Adjusted Value $317,976

Adjusted -$13,329 for 65 sqft less living space and -$10,305 for being older. Net adjustment: -$23,634.

3 bed 2 bath 1,447 sqft Built 1970
Raw Value $326,418
Adjusted Value $360,779

Adjusted +$31,785 for 155 sqft more living space and +$2,576 for being newer. Net adjustment: +$34,361.

3 bed 2 bath 1,670 sqft Built 1978
Raw Value $319,246
Adjusted Value $358,004

Adjusted -$13,944 for 68 sqft less living space and -$18,034 for being older and +$70,736 for having a garage. Net adjustment: +$38,758.

3 bed 2 bath 1,884 sqft Built 1970
Raw Value $379,486
Adjusted Value $324,234

Adjusted -$57,828 for 282 sqft less living space and +$2,576 for being newer. Net adjustment: -$55,252.

3 bed 2 bath 1,392 sqft Built 1975
Raw Value $258,164
Adjusted Value $290,923

Adjusted +$43,064 for 210 sqft more living space and -$10,305 for being older. Net adjustment: +$32,759.

The Neighborhood

This home is in line with the R605477I - South Park, Southern Terrace, Cushing PA median of $311,935. The neighborhood appreciated 0.3% over the past year.

R605477I - South Park, Southern Terrace, Cushing PA

typical
125 Properties
$311,935 Median Value
+0.3% YoY Change
2% Have Pool
61% Have Garage
This Home
$312,250
Median
$311,935

This home is +0.1% above the subdivision median.

Tax Analysis

The estimated annual property tax is $5,618 across all districts. With a homestead exemption claimed, that drops to $4,310 — saving $1,308 per year. That's $359 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%$2,789
Round RockCity0.3720%$1,162
Williamson CountyCounty0.3694%$1,154
Austin Community Collegespecial0.1034%$323
Williamson County FM/RdCounty0.0443%$138
Upper Brushy Creek WCIDWater0.0170%$53
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$5,618

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $324,234 would pay approximately $2,024 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