House Prices

Thornbury O Fallon, MO House Prices & Home Values 2026


Average Data

average house price$300,936
average size per house1938 ft²
average price per ft²141 $ / ft²

04/15/2026 - The value range (VR) for house prices in Thornbury O Fallon, MO is $133.95/ sqft to $148.05/ sqft. An average home with 1938 sqft costs approximately $235,194 to $259,951. O Fallon, MO includes 1 ZIP codes and it is located in St. Charles county. The lowest prices are found in ZIP 63368, while the highest are in ZIP 63368. The average price per sqare feet is $141. Our analysis is based on 12 property listings.

Avergage prices by ZIP codes Thornbury O Fallon

63368135 $ / ft²




Historical development of home values in Thornbury O Fallon

Year Estimated value (USD) Change vs. 2025
2010 $139,760 -53.6%
2011 $134,356 -55.4%
2012 $133,994 -55.5%
2013 $139,002 -53.8%
2014 $145,914 -51.5%
2015 $153,403 -49.0%
2016 $161,408 -46.4%
2017 $170,120 -43.5%
2018 $179,525 -40.3%
2019 $187,850 -37.6%
2020 $197,561 -34.4%
2021 $224,704 -25.3%
2022 $261,954 -13.0%
2023 $276,243 -8.2%
2024 $292,224 -2.9%
2025 $300,936 0.0%

Graph: estimated home values in Thornbury O Fallon over time (USD)



Example: 100% financing house in Thornbury O Fallon

Loan amount: $300,936

Interest rate: 5.44%

Fixed monthly payment: $1,696.62

Breakdown in the 1st month:
Interest portion: $1,363.24  –  Principal portion: $333.38

Yearly breakdown (100% financing)

Year Interest per year ($) Principal per year ($) Remaining balance at year-end ($)
1 $16,257.69 $4,101.72 $296,834.28
2 $16,029.08 $4,330.33 $292,503.95
3 $15,787.73 $4,571.68 $287,932.27
4 $15,532.92 $4,826.48 $283,105.79
5 $15,263.92 $5,095.49 $278,010.30
6 $14,979.92 $5,379.48 $272,630.82
7 $14,680.10 $5,679.31 $266,951.51
8 $14,363.56 $5,995.85 $260,955.67
9 $14,029.38 $6,330.02 $254,625.64
10 $13,676.58 $6,682.83 $247,942.81
11 $13,304.11 $7,055.30 $240,887.52
12 $12,910.88 $7,448.52 $233,438.99
13 $12,495.74 $7,863.67 $225,575.33
14 $12,057.46 $8,301.95 $217,273.38
15 $11,594.75 $8,764.66 $208,508.72
16 $11,106.25 $9,253.16 $199,255.56
17 $10,590.52 $9,768.88 $189,486.68
18 $10,046.05 $10,313.35 $179,173.33
19 $9,471.24 $10,888.17 $168,285.16
20 $8,864.39 $11,495.02 $156,790.14
21 $8,223.71 $12,135.69 $144,654.45
22 $7,547.33 $12,812.08 $131,842.37
23 $6,833.25 $13,526.16 $118,316.21
24 $6,079.37 $14,280.04 $104,036.17
25 $5,283.47 $15,075.94 $88,960.23
26 $4,443.21 $15,916.20 $73,044.04
27 $3,556.12 $16,803.29 $56,240.75
28 $2,619.59 $17,739.82 $38,500.93
29 $1,630.86 $18,728.55 $19,772.38
30 $587.02 $19,772.38 $0.00

Note: The calculation is based on a standard annuity mortgage with a fixed monthly payment over the entire term. Extra payments, interest rate changes, and additional purchase costs (e.g. taxes, notary fees) are not included.


How to sell in Thornbury O Fallon, MO


1500 sqft3900 sqft
Ø selling price$231,859$493,228
Ø fast selling$210,781$443,905
Ø high price sale$252,938$542,551

In 2026, houses in Thornbury O Fallon, MO will be offered at an average price of $141 per square foot. A 1,500 sqft home priced at $231,859 is 20.84% more expensive per square foot than a 3,900 sqft home priced at $493,228. Home prices in Thornbury O Fallon, MO vary significantly depending on the property’s condition and exact location. For a quick sale, a 2,700 sqft home should be listed at around $341,466. Sellers who can wait longer may achieve a higher price of up to $417,347.


Thornbury, O?Fallon, MO Neighborhood Guide

Overview

The Thornbury neighborhood in O?Fallon, MO blends suburban comfort with convenient access to city amenities. Quiet, sidewalk-lined streets and mature landscaping create a welcoming atmosphere for daily living and weekend relaxation.

Homes and Community

Homebuyers will find primarily single-family residences with varied floor plans and yards suited for pets, play, and gardening.
Residents value the community feel, neighborhood gatherings, and pride of ownership that helps keep the subdivision looking its best.

Location and Convenience

Thornbury offers quick connections to major O?Fallon corridors, retail centers, and dining, making errands and commutes refreshingly simple. Proximity to regional routes like I-70 and I-64/US-40 streamlines trips across St. Charles County and into greater St. Louis.

Schools and Recreation

The area is served by respected local schools, with parks, playgrounds, and recreation complexes nearby for year-round activities.
Popular O?Fallon attractions, seasonal events, and trails add to Thornbury?s family-friendly lifestyle and weekend options.

Real Estate Insight

For buyers and sellers, current O?Fallon real estate trends show steady demand, thanks to the neighborhood?s location and livability. If you?re exploring homes for sale in Thornbury, O?Fallon, MO, partner with a local agent to confirm HOA details, recent comps, and upcoming listings.



FAQ – Home Values in Thornbury O Fallon

What is the median home value in Thornbury O Fallon in 2026?

In 2026, the typical home value in Thornbury O Fallon is about $300,936 for an average home size of 1938 square feet. This corresponds to an average price of roughly $141 per square foot.

What is the average cost per square foot in Thornbury O Fallon?

In 2026, homes in Thornbury O Fallon sell for an average of around $141 per square foot, with a typical range between $133.95 and $148.05 per square foot, depending on the property’s location, condition, and lot size.

What is the average home size in Thornbury?

The average home size in Thornbury O Fallon is about 1938 square feet, with an estimated 2026 value around $300,936.



Neighborhoods close to Thornbury O Fallon, MO

Blue Valley Kansas City, MO97 $ / ft²
Guthrie New Bloomfield, MO86 $ / ft²
Baden Saint Louis, MO47 $ / ft²
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