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

305 VISTA AVE, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

2 bed1 bath1,552 sqftBuilt 1955

Property at a Glance

This home is estimated between $39,117 and $143,818, with a best estimate of $90,435. That places the property below the R503460E - Summit, Big Oaks, Vista Abstracts median of $329,210, in a neighborhood that declined 5.0% over the past year.

Estimated Value Range

$39,117 $143,818
Best Estimate
$90,435
WCAD Value
$348,066
Low Confidence

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

There are 5 comparable properties within range, but none are in R503460E - Summit, Big Oaks, Vista Abstracts. The estimated range of $39,117 and $143,818 should be treated as a rough guide.

Comparable Properties (5)

3 bed 2 bath 1,517 sqft Built 1978
Raw Value $341,507
Adjusted Value $143,818

Adjusted +$6,445 for 35 sqft more living space and -$187,295 for being older and +$6,235 for having a pool and -$23,074 for no garage. Net adjustment: -$197,689.

3 bed 2 bath 1,595 sqft Built 1979
Raw Value $295,427
Adjusted Value $75,232

Adjusted -$7,918 for 43 sqft less living space and -$195,438 for being older and +$6,235 for having a pool and -$23,074 for no garage. Net adjustment: -$220,195.

2 bed 1 bath 975 sqft Built 1986
Raw Value $257,361
Adjusted Value $94,334

Adjusted +$106,253 for 577 sqft more living space and -$252,441 for being older and +$6,235 for having a pool and -$23,074 for no garage. Net adjustment: -$163,027.

3 bed 2 bath 1,448 sqft Built 1985
Raw Value $281,103
Adjusted Value $39,117

Adjusted +$19,151 for 104 sqft more living space and -$244,298 for being older and +$6,235 for having a pool and -$23,074 for no garage. Net adjustment: -$241,986.

2 bed 1 bath 892 sqft Built 1986
Raw Value $238,178
Adjusted Value $90,435

Adjusted +$121,537 for 660 sqft more living space and -$252,441 for being older and +$6,235 for having a pool and -$23,074 for no garage. Net adjustment: -$147,743.

The Neighborhood

This home is valued 5.7% above the R503460E - Summit, Big Oaks, Vista Abstracts median of $329,210. With 13 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 5.0% over the past year.

R503460E - Summit, Big Oaks, Vista Abstracts

typical
13 Properties
$329,210 Median Value
-5.0% YoY Change
8% Have Pool
39% Have Garage
This Home
$348,066
Median
$329,210

This home is +5.7% above the subdivision median.

Tax Analysis

The estimated annual property tax is $6,263 across all districts. With a homestead exemption claimed, that drops to $4,948 — saving $1,315 per year. That's $412 per month a buyer should budget. The assessed value increased +4.7% vs the subdivision average of -5.0%. This above-average increase gives a protest opportunity score of 49 out of 100 — it may be worth challenging the appraisal.

Tax Districts

DistrictTypeRateAnnual Amount
Round Rock ISDSchool0.8931%$3,109
Round RockCity0.3720%$1,295
Williamson CountyCounty0.3694%$1,286
Austin Community Collegespecial0.1034%$360
Williamson County FM/RdCounty0.0443%$154
Upper Brushy Creek WCIDWater0.0170%$59
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$6,263
49 / 100

Moderate opportunity to protest.

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $90,435 would pay approximately $564 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