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902 MANDELL ST S, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

3 bed2 bath1,583 sqftBuilt 1980

Property at a Glance

This home is estimated between $270,831 and $379,274, with a best estimate of $305,940. That places the property below the R701575F - OLD TOWN ROUND ROCK median of $319,256, in a neighborhood that appreciated 4.3% over the past year.

Estimated Value Range

$270,831 $379,274
Best Estimate
$305,940
WCAD Value
$433,823
Low Confidence

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

There are 5 comparable properties within range, but none are in R701575F - OLD TOWN ROUND ROCK. The estimated range of $270,831 and $379,274 should be treated as a rough guide.

Comparable Properties (5)

3 bed 2 bath 1,548 sqft Built 1977
Raw Value $361,010
Adjusted Value $379,274

Adjusted +$8,987 for 35 sqft more living space and +$9,277 for being newer. Net adjustment: +$18,264.

3 bed 2 bath 1,587 sqft Built 1985
Raw Value $287,320
Adjusted Value $270,831

Adjusted -$1,027 for 4 sqft less living space and -$15,462 for being older. Net adjustment: -$16,489.

3 bed 2 bath 1,477 sqft Built 1980
Raw Value $278,723
Adjusted Value $305,940

Adjusted +$27,217 for 106 sqft more living space. Net adjustment: +$27,217.

3 bed 2 bath 1,496 sqft Built 1978
Raw Value $350,457
Adjusted Value $378,980

Adjusted +$22,338 for 87 sqft more living space and +$6,185 for being newer. Net adjustment: +$28,523.

3 bed 2 bath 1,500 sqft Built 1984
Raw Value $264,786
Adjusted Value $273,728

Adjusted +$21,311 for 83 sqft more living space and -$12,369 for being older. Net adjustment: +$8,942.

The Neighborhood

This home is valued 35.9% above the R701575F - OLD TOWN ROUND ROCK median of $319,256. With 360 homes in the subdivision, the property sits in the upper tier. The neighborhood appreciated 4.3% over the past year.

R701575F - OLD TOWN ROUND ROCK

above average
360 Properties
$319,256 Median Value
+4.3% YoY Change
5% Have Pool
24% Have Garage
This Home
$433,823
Median
$319,256

This home is +35.9% above the subdivision median.

Tax Analysis

The estimated annual property tax is $7,806 across all districts. With a homestead exemption claimed, that drops to $6,475 — saving $1,331 per year. That's $540 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%$3,874
Round RockCity0.3720%$1,614
Williamson CountyCounty0.3694%$1,603
Austin Community Collegespecial0.1034%$449
Williamson County FM/RdCounty0.0443%$192
Upper Brushy Creek WCIDWater0.0170%$74
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$7,806

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $305,940 would pay approximately $1,910 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.

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