Courtney Marsh

O Fallon IL

Red Door Realty Group Inc

377 Closed Sales

$80.9M Total Value

$85K - $904K Price Range

$214.7K Average Price

Prior 5 years

About Courtney

Courtney is a 2nd generation REALTOR® and grew up with a mom in the business. She has been licensed since 2010 and absolutely love what she does! In 2019, Courtney opened her own office, Red Door Realty Group, and in 2022 she started her own team, The Marsh Team - Brokered By Red Door Realty Group. Courtney is a 9th Generation resident of St Clair County and a 6th generation to O’Fallon. She is the proud mom of 5 and understands the needs of busy & moving families. Courtney is a FULL-TIME Real Estate Agent. This is her only business and work in the market EVERY day to stay current and up on trends. She is proud to be a part of the community and wouldn’t change her career choice for the world.

Home Types: House, Commercial, Townhouse, MultiFamily, Condo, Lot/Land

Years of Experience: 16

Education: SOUTHWESTERN ILLINOIS COLLEGE ILLINOIS ASSOCIATION OF REALTORS

Transaction History

1 Year
2 Year
5 Year

Seller Deals
Total Deals	47
Total Value	$9,761,267
Average Sale Price	$207,687
Price Range	$30K - $510K

Buyer Deals
Total Deals	20
Total Value	$5,075,957
Average Sale Price	$253,798
Price Range	$38K - $904K

1 Year View by Quarter

Seller Deals
Total Deals	96
Total Value	$19,696,217
Average Sale Price	$205,169
Price Range	$30K - $599K

Buyer Deals
Total Deals	42
Total Value	$10,751,607
Average Sale Price	$255,991
Price Range	$38K - $904K

2 Year View by Quarter

Seller Deals
Total Deals	247
Total Value	$50,116,741
Average Sale Price	$202,902
Price Range	$10K - $723K

Buyer Deals
Total Deals	130
Total Value	$30,829,950
Average Sale Price	$237,153
Price Range	$35K - $904K

5 Year View

Neighborhoods Courtney is Experienced In

Courtney's Recent Active Listings

$205,000
- 2 Beds
- 2 Baths
- 1,241 Sq Ft
2285 Wellington Dr

Belleville, IL
Welcome to 2285 Wellington, a beautifully maintained attached single-family home offering comfort, style, and easy everyday living. This charming 2 bedroom, 2 full bathroom home features an inviting great room with vaulted ceilings, a gas fireplace, and wonderful natural light. The updated kitchen is complete with stone countertops, stainless steel appliances, and a functional layout that opens

Courtney Marsh Red Door Realty Group Inc

$129,900
- 3 Beds
- 1 Bath
- 1,218 Sq Ft
317 Roosevelt St

Lebanon, IL
Welcome to 317 Roosevelt, a cute and quaint bungalow-style home tucked away on a quiet street! This charming 3 bedroom, 1 bathroom home features original hardwood floors, a comfortable layout, and plenty of character throughout. The main level offers two bedrooms, a full bathroom, and inviting living spaces, while the upper level provides a spacious third bedroom with added privacy and

Courtney Marsh Red Door Realty Group Inc

$189,900
- 3 Beds
- 1 Bath
- 1,408 Sq Ft
3303 Roland Ave

Belleville, IL
Welcome to 3303 Roland Ave, where timeless 1920s charm meets a beautiful modern transformation! From the refreshed stucco exterior and updated color scheme to the new roof and fresh landscaping, this home makes a great first impression before you even step inside. The interior has been thoughtfully remodeled while preserving the character of the original woodwork, including tall baseboards,

Courtney Marsh Red Door Realty Group Inc

$500,000
- Land
- 1.94 Acres
- $257,732 per Acre
530 W State St

O'Fallon, IL
Discover the potential of this **1.94-acre commercial parcel zoned B-1 (Community Business District)** offering excellent flexibility for a wide range of retail, professional, service, and commercial development opportunities. With nearly two acres of land, this site provides ample room for building, parking, access points, and potential multi-tenant or mixed-use concepts, making it an attractive

Courtney Marsh Red Door Realty Group Inc

$105,000
- 4 Beds
- 2 Baths
- 1,519 Sq Ft
2216 W A St

Belleville, IL
**DO NOT DISTURB TENANT!**Centrally located in Belleville, this 4-bedroom, 2-bath bungalow offers a versatile layout and approximately 1,500 sq. ft. of living space. The main floor includes a living room, dining room, kitchen, two bedrooms, and a full bath—ideal for flexible living or work-from-home needs.Upstairs, you’ll find a 2 more bedrooms featuring a 3/4 bathroom. LVP flooring

Courtney Marsh Red Door Realty Group Inc

$100,000
- 3 Beds
- 2 Baths
- 1,428 Sq Ft
2218 W A St

Belleville, IL
**DO NOT DISTURB TENANTS!!**Charming 1.5-Story Bungalow – Income Producing OpportunityThis well-maintained 1.5-story bungalow offers 3 bedrooms and 2 full bathroom with approximately 1,428 square feet of living space. The main level features a comfortable living room, kitchen, bedroom, and a full bath, while the upper level provides 2 additional bedrooms and full bathroom. Laundry hookups

Courtney Marsh Red Door Realty Group Inc

$110,000
- 4 Beds
- 1 Bath
- 849 Sq Ft
30 S 21st St

Belleville, IL
**DO NOT DISTURB TENANTS**Charming 1.5-Story Bungalow – Income Producing OpportunityThis well-maintained 1.5-story bungalow offers 4 bedrooms and 1 full bathroom with approximately 1,064 square feet of living space. The main level features a comfortable living room, kitchen, two bedrooms, and a full bath, while the upper level provides a spacious third bedroom. Laundry hookups are

Courtney Marsh Red Door Realty Group Inc

$100,000
- 3 Beds
- 1 Bath
- 1,084 Sq Ft
16 S 21st St

Belleville, IL
**DO NOT DISTURB TENANTS!**Charming 1.5-Story Bungalow – Income Producing OpportunityThis well-maintained 1.5-story bungalow offers 3 bedrooms and 1 full bathroom with approximately 1,064 square feet of living space. The main level features a comfortable living room, kitchen, two bedrooms, and a full bath, while the upper level provides a spacious third bedroom. Laundry hookups are

Courtney Marsh Red Door Realty Group Inc

$425,000
- 4 Beds
- 2 Baths
- 3,213 Sq Ft
3 Sunnyslope Dr

Belleville, IL
Welcome to 3 Sunny Slope Drive, a private retreat where nature, space, and everyday comfort come together beautifully. Tucked behind a private gated entrance on 1.6 wooded acres, this one-of-a-kind property offers a peaceful setting with a scenic creek, charming bridges, mature trees, and natural views that make the grounds feel like your own hidden escape. With over 3,200 square feet, this

Courtney Marsh Red Door Realty Group Inc

Recently Sold

$510,000

Sold Jun 3, 2026
- 6 Beds
- 4.5 Baths
- 3,975 Sq Ft
1402 Miami Ct

O Fallon, IL
- 1% Below List
- $128/SF
- 50 Days On Market
- Current Est. Value $515K
Courtney Marsh Red Door Realty Group Inc

$275,000

Sold Jun 2, 2026
- 3 Beds
- 2 Baths
- 1,762 Sq Ft
3921 Whitfield Dr

Swansea, IL
- $156/SF
- 28 Days On Market
- Current Est. Value $278K
Courtney Marsh Red Door Realty Group Inc

$202,500

Sold May 29, 2026
- 3 Beds
- 1 Bath
- 1,036 Sq Ft
113 Perrottet Dr

Mascoutah, IL
- 4% Above List
- $195/SF
- 13 Days On Market
- Current Est. Value $192K
Courtney Marsh Red Door Realty Group Inc

$135,000

Sold May 21, 2026
- 2 Beds
- 1 Bath
- 1,200 Sq Ft
218 Shoreline Dr

Unit 3

O Fallon, IL
- 15% Below List
- $112/SF
- 17 Days On Market
- Current Est. Value $156K
Courtney Marsh Red Door Realty Group Inc

$62,500

Sold May 15, 2026
- 3 Beds
- 1.5 Baths
- 1,547 Sq Ft
1078 Lafayette Ct

Collinsville, IL
- 4% Below List
- $40/SF
- 12 Days On Market
- Current Est. Value $72K
Courtney Marsh Red Door Realty Group Inc

$185,000

Sold May 1, 2026
- 2 Beds
- 1 Bath
- 1,072 Sq Ft
408 E Washington St

O Fallon, IL
- 2% Below List
- $173/SF
- 33 Days On Market
- Current Est. Value $183K
Courtney Marsh Red Door Realty Group Inc

$410,000

Sold Apr 29, 2026
- 4 Beds
- 2.5 Baths
- 2,608 Sq Ft
1309 E 3rd St

O Fallon, IL
- 3% Above List
- $157/SF
- 23 Days On Market
- Current Est. Value $394K
Courtney Marsh Red Door Realty Group Inc

$159,900

Sold Apr 27, 2026
- 2 Beds
- 1 Bath
- 1,066 Sq Ft
145 S 34th St

Belleville, IL
- $150/SF
- 28 Days On Market
- Current Est. Value $156K
Courtney Marsh Red Door Realty Group Inc

$128,000

Sold Apr 22, 2026
- 4 Beds
- 2 Baths
- 1,482 Sq Ft
2110 W A St

Belleville, IL
- 2% Above List
- $86/SF
- 118 Days On Market
- Current Est. Value $150K
Courtney Marsh Red Door Realty Group Inc

Awards and Designations

2013, 2016 Sapphire Team Award from GGAR board
2014-Diamond Award from GGAR board
2015-Top 25 Producer
2021 - Ruby Team Award from RASI Board
2022,2021, 2020, 2018, 2017 - Ruby Team Award from RASI
NAR - National Association of Realtors
ABR - Accredited Buyer Representative
e–PRO - Internet Professional
RENE - Real Estate Negotiation Expert
SFR - Short Sale & Foreclosure Resource

Other Experience

Distressed Properties, First Time Home Buyers, Foreclosures, Investments, Luxury Homes, Military Families, New Construction, Veteran Programs

Agent License: Illinois 471020000

Courtney Marsh

(618) 491-6335

Red Door Realty Group Inc

(618) 491-6335

Homes for Sale by City

Courtney Marsh

About Courtney

Transaction History

Seller Deals

Buyer Deals

Production Over Time

1 Year View by Quarter

Seller Deals

Buyer Deals

Production Over Time

2 Year View by Quarter

Seller Deals

Buyer Deals

Production Over Time

5 Year View

Neighborhoods Courtney is Experienced In

Courtney's Listings and Deals

Courtney's Recent Active Listings

Recently Sold

Awards and Designations

Other Experience