4545 Post Loop is a 2,256 square foot house on a 6,194 square foot lot with 4 bedrooms and 3 bathrooms. Based on Redfin's Round Rock data, we estimate the home's value is $495,860.
Single-familyProperty Type
2021Year Built
6,194 sq ftLot Size
$220Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$495,860
$5,000 since August
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 6.1% lower than the average sale price ($528K) of 6 comparable homes.
As the MLS and public records start to fill up, we'll list the details here.
Year
Property tax
Land + Additions
Assessment*
2026
$9,924 (−8.5%)
$109,000 + $415,648
$524,648
2025
$10,841 (+3.9%)
$109,000 + $415,648
$524,648
2024
$10,433 (−2.5%)
$111,000 + $391,985
$502,985
2023
$10,706 (+0.6%)
$115,000 + $406,326
$521,326
2022
$10,642 (+362.6%)
$116,000 + $358,891
$474,891
2021
$2,300
$95,000
Tax history for 4545 Post Loop
Year
Property tax
Land + Additions
Assessment*
2026
$9,924 (−8.5%)
$109,000 + $415,648
$524,648
2025
$10,841 (+3.9%)
$109,000 + $415,648
$524,648
2024
$10,433 (−2.5%)
$111,000 + $391,985
$502,985
2023
$10,706 (+0.6%)
$115,000 + $406,326
$521,326
2022
$10,642 (+362.6%)
$116,000 + $358,891
$474,891
2021
$2,300
$95,000
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Permits
Mar 12, 2021 • Final
Tri pointe homes
Connect utilities for a residential building.
Plumbing
Permit history is from public records and may be incomplete or inaccurate. Redfin and its agents make no representations about the property condition or permit status. Buyers should independently verify all information.
Property details
Interior
Bathroom Information
# of Full Baths: 3
Heating & Cooling
Air Conditioning Type: Central
Heating Type: Central
Exterior
Exterior Information
Foundation Type: Slab
Exterior Wall: Stone
Property Information
Living Sq. Ft: 2,256
Ground Floor Sq. Ft: 2,256
Building Sq. Ft: 2,256
Legal Description: S12403 - HIGHLANDS AT MAYFIELD RANCH SEC 11, BLOCK G, LOT 109
Parking & Garage Information
Garage/Parking Sq. Ft: 420
Lot Information
# of Buildings: 1
Land Sq. Ft: 6,194
Legal Lot Number: 109
Legal Block Number: G
Water District: UPPER BRSHY CR WCID
Municipality Name: ROUND ROCK
Acres: 0.1422
County Use Description: RESIDENTIAL SINGLE FAMILY
State Use Description: RESIDENTIAL SINGLE FAMILY
Financial
Assessor Information
Assessment Year: 2025
Tax District County: WILLIAMSON COUNTY
Public facts
Beds: 4
Baths: 3.0
Sq. Ft.: 2,256
Stories: —
Lot Size: 6,194 square feet
Style: Single Family Residential
Year Built: 2021
Year Renovated: 2021
County: Williamson County
APN: R600363
Home facts updated by county records on Jun 29, 2026
Around this home
Schools
Wolf Ranch Elementary School
Public PreK-5 • Assigned • 4.0mi
7/10
James Tippit Middle School
Public 6-8 • Assigned • 3.8mi
6/10
East View High School
Public 9-12 • Assigned • 8.8mi
5/10
Provided by GreatSchools
Lifestyle
Provided by Walk Score and Local Logic
Climate risks
1/10 Flood Factor
Minimal risk of a flood reaching the building in the next 30 years
5/10 Fire Factor
4% chance of being in a wildfire in next 30 years
7/10 Heat Factor
6 days above 107° expected this year, 18 days in 30 years
8/10 Wind Factor
80% chance of strong winds in next 30 years
2/10 Air Factor
1 unhealthy days expected this year, 1 days in 30 years
Provided by First Street
Historical weather
Round Rock, TX • 78681
Average low and high temperatures (°F)
59
38
69
46
81
56
81
62
86
66
92
75
92
74
95
74
92
69
88
63
76
53
67
47
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Sun exposure
In this area, properties receive around 9.5 hours in
June and 5 hours in December, which is comparable to the
U.S. average for solar exposure.
9.5 hrs
5 hrs
JuneDecember
Provided by Shadowmap
Estimated sale price
$472,000 – $571,000
Reach more buyers when you sell with Redfin. Save up to $4,959 in fees.3 minutes to get started.