4030 MASON CV, ROUND ROCK, TX 78681
ROUND ROCK, 78681 — williamson County
Property at a Glance
This home is estimated between $448,337 and $791,618, with a best estimate of $627,109. That places the property above the G799514C - MAYFIELD RANCH median of $523,371, in a neighborhood that declined 9.3% over the past year.
Estimated Value Range
$627,109
$482,132
Based on 5 comparable properties(4 in the same subdivision)
Based on 5 comparable properties (4 in the same subdivision, 1 nearby), the estimated range is $448,337 and $791,618. More comparables in the same subdivision would strengthen this estimate.
Comparable Properties (5)
Adjusted +$111,058 for 501 sqft more living space and +$1,826 for being newer. Net adjustment: +$112,884.
Adjusted -$46,773 for 211 sqft less living space and +$1,826 for being newer. Net adjustment: -$44,947.
Adjusted +$15,517 for 70 sqft more living space and +$1,826 for being newer. Net adjustment: +$17,343.
Adjusted +$7,094 for 32 sqft more living space and +$20,087 for being newer. Net adjustment: +$27,181.
Adjusted +$95,320 for 430 sqft more living space and +$1,826 for being newer. Net adjustment: +$97,146.
The Neighborhood
This home is valued 7.9% below the G799514C - MAYFIELD RANCH median of $523,371. That positions it competitively for buyers comparing within the neighborhood. Note that values in this subdivision declined 9.3% over the past year.
G799514C - MAYFIELD RANCH
typicalThis home is -7.9% below the subdivision median.
Tax Analysis
The estimated annual property tax is $9,962 across all districts. With a homestead exemption claimed, that drops to $8,402 — saving $1,560 per year. That's $700 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
| District | Type | Rate | Annual Amount |
|---|---|---|---|
| Georgetown ISD | School | 1.0506% | $5,065 |
| Highlands at Mayfield Ranch MUD | MUD | 0.4850% | $2,338 |
| Williamson County | County | 0.3694% | $1,781 |
| Williamson County ESD #9 - Round Rock | ESD | 0.0999% | $482 |
| Williamson County FM/Rd | County | 0.0443% | $214 |
| Upper Brushy Creek WCID | Water | 0.0170% | $82 |
| Williamson Central Appraisal District | cad | 0.0000% | $0 |
| Total Annual Tax | 2.0663% | $9,962 | |
Mortgage Context
At today's 30-year mortgage rate of 6.38%, a buyer financing $627,109 would pay approximately $3,914 per month (principal and interest only, excluding taxes and insurance).