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

902 MARTIN AVE, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

1 bed3 sqft

Property at a Glance

There are not enough comparable properties nearby to estimate a price range. The Williamson County Appraisal District values this home at $335,036.

Estimated Value Range

WCAD Appraised Value $335,036
Low Confidence

Based on 5 comparable properties(0 in the same subdivision)

Comparable data is not yet available for this property. The Williamson County Appraisal District values it at $335,036.

Comparable Properties (5)

2 bed 1 bath 756 sqft Built 1970
Raw Value $194,992
Adjusted Value --

Adjusted -$181,815 for 753 sqft less living space and -$0 for being older. Net adjustment: -$181,815.

2 bed 1 bath 1,133 sqft Built 1960
Raw Value $201,205
Adjusted Value --

Adjusted -$272,844 for 1,130 sqft less living space and -$0 for being older. Net adjustment: -$272,844.

3 bed 2 bath 1,400 sqft Built 2004
Raw Value $306,222
Adjusted Value --

Adjusted -$337,312 for 1,397 sqft less living space and -$0 for being older and -$60,193 for no garage. Net adjustment: -$397,505.

3 bed 1 bath 1,419 sqft Built 1960
Raw Value $237,293
Adjusted Value --

Adjusted -$341,900 for 1,416 sqft less living space and -$0 for being older and -$60,193 for no garage. Net adjustment: -$402,093.

2 bed 2 bath 1,368 sqft Built 1979
Raw Value $350,021
Adjusted Value --

Adjusted -$329,586 for 1,365 sqft less living space and -$0 for being older and -$60,193 for no garage. Net adjustment: -$389,779.

The Neighborhood

This home is valued 40.0% below the R30QMHP - WEST ROUND ROCK MOBILE HOME PARK median of $558,382. That positions it competitively for buyers comparing within the neighborhood. The neighborhood appreciated 29.5% over the past year.

R30QMHP - WEST ROUND ROCK MOBILE HOME PARK

below average
7 Properties
$558,382 Median Value
+29.5% YoY Change
0% Have Pool
0% Have Garage
This Home
$335,036
Median
$558,382

This home is -40.0% below the subdivision median.

Tax Analysis

The estimated annual property tax is $3,123 across all districts. With a homestead exemption claimed, that drops to $1,835 — saving $1,288 per year. That's $153 per month a buyer should budget. The assessed value increased +23.3% vs the subdivision average of +29.5%. This increase gives a protest opportunity score of 45 out of 100 — it may be worth challenging the appraisal.

Tax Districts

DistrictTypeRateAnnual Amount
Round Rock ISDSchool0.8931%$1,827
Williamson CountyCounty0.3694%$756
Austin Community Collegespecial0.1034%$211
Williamson County ESD #9 - Round RockESD0.0999%$204
Williamson County FM/RdCounty0.0443%$91
Upper Brushy Creek WCIDWater0.0170%$35
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.5272%$3,123
45 / 100

Moderate opportunity to protest.

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