850 Mueller Rd is a 2,989 square foot house on a 3.53 acre lot with 3 bedrooms and 2.5 bathrooms. Based on Redfin's O Fallon data, we estimate the home's value is $622,135.
Single-familyProperty Type
2017Year Built
3.53 acresLot Size
$208Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$622,135
$1,000 since August
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 10.5% higher than the average sale price ($563K) 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*
2025
$5,694
2024
$5,690 (+8.8%)
2023
$5,230 (+13.0%)
2022
$4,630
2021
$4,627 (+2.4%)
2020
$4,518 (+0.3%)
2019
$4,503 (+26.9%)
2018
$3,548
Tax history for 850 Mueller Rd
Year
Property tax
Land + Additions
Assessment*
2025
$5,694
2024
$5,690 (+8.8%)
2023
$5,230 (+13.0%)
2022
$4,630
2021
$4,627 (+2.4%)
2020
$4,518 (+0.3%)
2019
$4,503 (+26.9%)
2018
$3,548
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Permits
Aug 2, 2018 • Final
Residential building
Work on a septic system.
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
Basement Information
Basement Sq. Ft: 1,993
Basement Finish: Finished
Bathroom Information
# of Full Baths: 2
# of 1/2 Baths: 1
Room Information
# of Rooms: 5
Exterior
Exterior Information
Building Construction Quality: Average
Exterior Wall: Vinyl
Property Information
Living Sq. Ft: 2,989
Building Sq. Ft: 3,986
# of Stories: 1
Stories Type: 1
Legal Description: PT E PT NE 1/4
Parking & Garage Information
# of Parking Spaces: 3
Lot Information
# of Buildings: 1
Land Sq. Ft: 153,854
School Tax District: FT ZUMWALT
Municipality Name: ST PAUL
Acres: 3.532
County Use Description: SINGLE FAMILY RESID
Financial
Assessor Information
Assessment Year: 2025
Public facts
Beds: 3
Baths: 2.5
Sq. Ft.: 2,989
Stories: 1.0
Lot Size: 3.53 acres
Style: Single Family Residential
Year Built: 2017
Year Renovated: —
County: St. Charles County
APN: 2-0033-S007-00-0003.1100000
Home facts updated by county records on Jun 8, 2026
Around this home
Schools
Mount Hope Elementary School
Public K-5 • Assigned • 1.0mi
5/10
Ft. Zumwalt North Middle School
Public 6-8 • Assigned • 3.5mi
8/10
Ft. Zumwalt North High School
Public 9-12 • Assigned • 3.5mi
9/10
Provided by GreatSchools
Lifestyle
Provided by Walk Score and Local Logic
Historical weather
O Fallon, MO • 63366
Average low and high temperatures (°F)
38
20
47
27
66
41
72
51
76
56
85
68
90
73
86
66
84
60
74
50
57
40
46
29
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
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Dec
Sun exposure
In this area, properties receive around 9.7 hours in
June and 4.2 hours in December, which is comparable to the
U.S. average for solar exposure.
9.7 hrs
4.2 hrs
JuneDecember
Provided by Shadowmap
Estimated sale price
$592,000 – $716,000
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