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2800 FOUNTAIN GROVE CV, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

5 bed4 bath1,649 sqftBuilt 2007

Property at a Glance

This home is estimated between $418,960 and $652,874, with a best estimate of $482,150. That places the property above the R530506E - SONOMA ALL SECTIONS median of $451,534, in a neighborhood that declined 7.0% over the past year.

Estimated Value Range

$418,960 $652,874
Best Estimate
$482,150
WCAD Value
$595,492
High Confidence

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

Based on 5 comparable properties in R530506E - SONOMA ALL SECTIONS, this home's estimated market value is between $418,960 and $652,874. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

2809 FOUNTAIN GROVE CV, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
4 bed 3 bath 2,066 sqft Built 2006
Raw Value $528,166
Adjusted Value $421,850

Adjusted -$111,748 for 417 sqft less living space and +$5,432 for being newer. Net adjustment: -$106,316.

2812 FOUNTAIN GROVE CV, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
4 bed 3 bath 1,579 sqft Built 2007
Raw Value $611,433
Adjusted Value $630,192

Adjusted +$18,759 for 70 sqft more living space. Net adjustment: +$18,759.

2838 PIPER SONOMA PL, ROUND ROCK, TX 78665
0.04 mi 100% similar Same subdivision
5 bed 4 bath 2,204 sqft Built 2006
Raw Value $625,448
Adjusted Value $482,150

Adjusted -$148,730 for 555 sqft less living space and +$5,432 for being newer. Net adjustment: -$143,298.

2839 PIPER SONOMA PL, ROUND ROCK, TX 78665
0.04 mi 100% similar Same subdivision
5 bed 4 bath 1,661 sqft Built 2006
Raw Value $650,658
Adjusted Value $652,874

Adjusted -$3,216 for 12 sqft less living space and +$5,432 for being newer. Net adjustment: +$2,216.

2819 PIPER SONOMA PL, ROUND ROCK, TX 78665
0.04 mi 100% similar Same subdivision
4 bed 3 bath 2,050 sqft Built 2006
Raw Value $520,989
Adjusted Value $418,960

Adjusted -$107,461 for 401 sqft less living space and +$5,432 for being newer. Net adjustment: -$102,029.

The Neighborhood

This home is valued 31.9% above the R530506E - SONOMA ALL SECTIONS median of $451,534. With 1,029 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 7.0% over the past year.

R530506E - SONOMA ALL SECTIONS

above average
1,029 Properties
$451,534 Median Value
-7.0% YoY Change
2% Have Pool
100% Have Garage
This Home
$595,492
Median
$451,534

This home is +31.9% above the subdivision median.

Tax Analysis

The estimated annual property tax is $10,715 across all districts. With a homestead exemption claimed, that drops to $9,354 — saving $1,361 per year. That's $780 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%$5,318
Round RockCity0.3720%$2,215
Williamson CountyCounty0.3694%$2,200
Austin Community Collegespecial0.1034%$616
Williamson County FM/RdCounty0.0443%$264
Upper Brushy Creek WCIDWater0.0170%$101
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$10,715

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $482,150 would pay approximately $3,010 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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