St. Clair County Homes under $400,000

St. Clair County Homes under $400,000

Welcome to St. Clair County, Illinois—a hidden gem nestled in the heart of the Midwest, just a stone's throw from the vibrant city of St. Louis. Known for its rich history, diverse communities, and lush landscapes, St. Clair County offers a perfect blend of suburban tranquility and urban convenience. With its charming small towns and welcoming neighborhoods, this area is ideal for families, young professionals, and retirees alike.

If you're searching for your dream home without breaking the bank, St. Clair County is the place to be! The real estate market here boasts an impressive selection of homes priced under $400,000, making it an attractive option for first-time buyers and those looking to invest in a growing community. From cozy single-family homes to spacious townhouses and modern condos, there's something for everyone. Many properties feature beautiful yards, updated interiors, and easy access to local amenities, ensuring you can enjoy the best of both comfort and convenience.

St. Clair County is also home to a wealth of recreational opportunities, with numerous parks, trails, and community events that foster a strong sense of belonging. With excellent schools, shopping centers, and dining options just around the corner, you’ll find everything you need right at your fingertips.

Discover the charm and affordability of St. Clair County today! Explore our listings and take the first step toward making this wonderful community your new home. Your dream home awaits!

Newest St. Clair County Homes under $400,000

342 Vermillion Dr, O'Fallon
$248,800
3 Beds ⋅ 3 Baths ⋅ 26041675 MLS ⋅ COMING SOON Status
Looking for a home under $250,000 in O’Fallon, Illinois with incredible space, flexibility, and room to grow? Welcome to 342 Vermilion Dr, O'Fallon, IL 62269. Situated in O'Fallon Township High School District 90 (K-8) and 203 (9-12), this versatile home features a brand-new roof (Sept 2026), an oversized 2-car garage, a fenced backyard with a large storage shed, and multiple flexible living/ future bdrm areas. Designed with potential for up to 5 total bedrooms (buyer to verify local requirements for intended bedroom/egress use), this layout provides room for everyone. Main Level Features: Welcoming family room and full bathroom. Oversized laundry room with mudsink. Dedicated office space (or potential 4th bedroom). Bonus room with a private mini-split system (ideal for a gym, home office, or potential 5th bedroom). Two direct access to the 2-car garage and fully fenced backyard. Upper Level Features: Spacious loft area for an extra living or media space. Bright eat-in kitchen with direct walk-out access to the deck (steps down to backyard). Primary bedroom suite with a private full bathroom. Two additional upper-level bedrooms and a full hall bathroom. Additional: Newer HVAC and Tankless Hot water Heater. Important Disclosures & Investor Opportunity: Property is being sold AS-IS. Agent Owned. Buyers and buyer agents to verify all room dimensions, square footage, school boundaries, and city compliance/permitting requirements for flexible space usage. Note: If not sold during October, seller plans to renovate and re-list in Spring 2027. Don't miss this rare opportunity to buy under $250k in O'Fallon and build instant equity—schedule your tour today! Agent Owned.

342 Vermillion Dr, O'Fallon
821 Turnberry Rd, Belleville
$299,000
3 Beds ⋅ 2 Baths ⋅ 26059657 MLS ⋅ COMING SOON Status
Move right into this 3 bedroom/2 bathroom one story home in Oak Hill Estates. Step in from the welcoming front porch to the Entry foyer. Here the open floorplan is revealed. Wood laminate flooring flows into the classic Dining room and Vaulted Great Room with a brick fireplace flanked by windows. The Kitchen boasts tons of custom, tiered cabinetry, corian countertops, breakfast bar and stainless appliances. The Breakfast room has large bay window and opens to the private backyard patio. Nearby Laundry room is equipped with a brand new washer and dryer, a sink and cabinets. The Primary Bedroom features wood laminate flooring and a private en-suite bathroom with a soaking tub, walk-in shower and large walk-in closet. 2 additional bedrooms share a full Bathroom nearby. The large corner lot also accommodates an oversized 2+ car attached finished garage. Furnace-2026, newer gutter helmets and front columns.

821 Turnberry Rd, Belleville
510 N Main St, Freeburg
$219,900
3 Beds ⋅ 1 Baths ⋅ 26063688 MLS ⋅ ACTIVE Status
Remodeled Home on 1 Acre in Town! Location, space, and updates come together beautifully in this remodeled home situated on a full acre in town! As you arrive, you'll appreciate the sidewalks that connect much of Freeburg, making it easy to enjoy a stroll to some of the wonderful local businesses and amenities the community has to offer. Outside, you'll find a spacious front and back yard, plus an oversized 2-car garage offering plenty of room for parking, storage, hobbies, or projects. Step inside and you'll immediately notice the extensive remodeling throughout. The major updates are already done, including a new water heater, HVAC system, electrical, and appliances—all completed since 2023! The spacious living room features a beautiful brick fireplace and flows seamlessly into the kitchen, creating a comfortable space for everyday living and entertaining. The large primary bedroom offers plenty of room to relax and includes a walk-in closet with a custom wood-built closet system. The split-bedroom floor plan provides added privacy, with two additional bedrooms, a full bathroom, and a beautifully updated laundry room located on the opposite side of the home. And then there's the backyard retreat! Step through the back door onto the covered, screened-in porch overlooking your private backyard. It's the perfect spot to enjoy your morning coffee, unwind in the evening, or gather around the firepit beneath the night sky. With an acre of land, an oversized garage, extensive updates, and a convenient in-town location, this home offers a rare combination of space, comfort, and convenience! Also included - permanently installed holiday lighting!

510 N Main St, Freeburg
2309 S 6th St, Fayetteville
$199,900
3 Beds ⋅ 2 Baths ⋅ 26063572 MLS ⋅ ACTIVE Status
Situated at the end of South 6th street on spacious 0.43 acre lot, adjoining open farm land to the South & West. Quiet & peaceful!! There's plenty of room for parking & a very nice 33' x 60' detached garage. Fenced backyard includes new pergola. Inside you'll find an open updated floor plan that is move in ready! 3 bedrooms / 2 Baths. Newer flooring. Mostly newer stainless steel appliances. New roof on home & garage 2024. Transferrable home warranty in place through February 2027. Buyer to verify all information.

2309 S 6th St, Fayetteville
7301 Church Ln E, East St Louis
$99,900
3 Beds ⋅ 1 Baths ⋅ 26062854 MLS ⋅ ACTIVE Status
WELCOME HOME! Whether you’re a first-time homebuyer, looking to downsize your home and monthly payment, or searching for a property with rental income potential, this refreshed 3-bedroom, 1-bath home is worth a look! The home has received a refresh throughout and offers a comfortable, manageable living space. Enjoy a fenced yard with room for outdoor activities, pets, or entertaining. A 2-car garage provides plenty of parking and storage options. Conveniently located near schools, highway access, transit, dining, and everyday necessities. Whether you’re ready to stop renting, simplify your lifestyle, or expand your investment portfolio, 7301 Church Lane offers several possibilities. Call your favorite REALTOR® and schedule your showing today!

7301 Church Ln E, East St Louis
5120 Wesleyan Dr, O'Fallon
$389,900
3 Beds ⋅ 3 Baths ⋅ 26063644 MLS ⋅ COMING SOON Status
Welcome to 5120 Wesleyan, a custom-built, one-owner home by D&F Construction featuring the expanded Emily floorplan and an impressive collection of upgrades! With nearly 2,100 square feet, 3 bedrooms, 2.5 bathrooms, and a full unfinished basement, this home offers inviting living spaces and room to grow. Soaring vaulted ceilings extend through the dining room, great room, and kitchen, while hardwood floors and large picture windows create a bright, welcoming atmosphere. Enjoy views of the backyard and the farm fields beyond, providing a peaceful backdrop to everyday living. The open dining room and see-through gas fireplace with built-ins add warmth and character to the spacious layout. The kitchen features a large island with additional prep space and seating, plus a flexible adjoining area perfect for a cozy hearth room or an eat-in nook. The primary bedroom includes a bay window and an en-suite bathroom with dual vanities, additional storage, a glass-enclosed walk-in shower, and a walk-in closet. Thoughtful upgrades include an enlarged garage, an expanded laundry room, an additional powder room, and a whole-house Generac generator. The full unfinished basement provides abundant storage and potential for future finished space. Custom touches, an open layout, and scenic backyard views make this home a must-see! All information deemed reliable but not guaranteed; buyer/buyer’s agent to verify.

5120 Wesleyan Dr, O'Fallon
41 Scarlet Dr, Belleville
$108,000
3 Beds ⋅ 1 Baths ⋅ 26063629 MLS ⋅ ACTIVE Status
ONE LEVEL 3 Bedroom Ranch Home with Covered Patio. Freshly painted interior, Newer Laminate Flooring. Eat in Kitchen offers a gas range, refrigerator and microwave. Shed in rear stays. All information is deemed accurate. Please verify all information to buyers satisfaction. Room sizes are rounded. COME SEE AND MAKE THIS QUAINT HOME YOURS.

41 Scarlet Dr, Belleville
3240 Hunters Way, Belleville
$315,000
3 Beds ⋅ 3 Baths ⋅ 26063551 MLS ⋅ ACTIVE Status
Welcome to 3240 Hunters Way! Located centrally in Belleville; right off Greenmount Rd. and near Scott Air Force Base. One will find a truly unique place to call home. This ranch home is a divided floor-plan with 3-bedrooms - 2.5 bathrooms, recently updated full and finished basement with half-bath, vaulted ceilings on main level with wood burning fireplace & large windows to let in an abundance of light, eat-in breakfast area with separate formal dining, 2 car attached garage, large kitchen countertop with stainless steel appliances, main floor laundry, ample sized master with tub and walk-in shower, large rear deck with fenced in yard. Home sits on a corner lot with mature trees and many many more features to name. Don't let this one pass you by, contact your favorite realtor today for a private showing! Open House this Saturday 10/3/26 from 8am-10am!

3240 Hunters Way, Belleville
801 Green Haven Dr, Swansea
$295,000
3 Beds ⋅ 2 Baths ⋅ 26063077 MLS ⋅ ACTIVE Status
Welcome to 801 Green Haven Dr! Professionally painted throughout and featuring new carpeting, this inviting ranch offers a bright, welcoming feel. A classic brick front, mature shade tree, and attached two-car garage add curb appeal. Inside, vaulted ceilings and natural light enhance the main living areas, while separate living and family rooms offer flexibility for entertaining or relaxing. A brick fireplace with a wood mantel adds character to the family room. The kitchen features white cabinetry, generous counter space, a breakfast bar, and a tile backsplash, with an adjoining dining area and glass-paneled double doors leading to the backyard patio. Spacious bedrooms offer ceiling fans and ample closet space, including a generous walk-in closet with shelving and hanging storage. A dedicated laundry and utility room adds everyday convenience. Warm wood trim and neutral finishes make it easy to add your personal touch. Schedule your showing today!

801 Green Haven Dr, Swansea
9958 South Rd, Fairview Heights
$150,000
3 Beds ⋅ 2 Baths ⋅ 26062231 MLS ⋅ ACTIVE Status
Welcome to 9958 South Road in Fairview Heights! This charming 3-bedroom, 1.5-bath home offers approximately 1,480 square feet of living space with plenty of character throughout. The main level features all three bedrooms, along with spacious living and dining areas and a fireplace that adds to the home's inviting feel. A full basement provides additional space for storage, laundry, and plenty of possibilities. Outside, enjoy a generously sized lot with mature surroundings and room to make the outdoor space your own. Conveniently located in Fairview Heights with easy access to shopping, dining, highways, and area amenities. Whether you're looking for your first home or your next home, 9958 South Road is one you'll want to see!

9958 South Rd, Fairview Heights
455 Falling Leaf Way, Mascoutah
$320,000
4 Beds ⋅ 3 Baths ⋅ 26058932 MLS ⋅ COMING SOON Status
Welcome home to 455 Falling Leaf Way! Nestled in Mascoutah’s highly sought-after Timberbrook neighborhood, this spacious 2,700-square-foot, four-bedroom, 2.5-bath home offers the perfect blend of comfort, convenience, and room to grow. From the moment you step inside, you’ll love the inviting open-concept design. The main level flows seamlessly from the front entry into the living and dining areas and oversized great room, creating a warm, connected space where everyone can gather. Beautiful, neutral Luxury Vinyl Plank flooring, installed in 2023, adds a fresh, modern feel while offering easy-care durability. At the heart of the home is a spacious kitchen with newer appliances—including a dishwasher replaced in 2025—plus abundant cabinetry and generous counter space. The open layout keeps the kitchen connected to the living spaces, making it easy to cook, entertain, and stay part of the conversation. A convenient half bath completes the main level. Upstairs, four generously sized bedrooms provide plenty of space for everyone, with each bedroom featuring a walk-in closet and newer carpet installed in 2023. Two full bathrooms add convenience, while the large laundry room is ideally located near the bedrooms—making laundry day easier and eliminating the need to carry baskets up and down the stairs. A spacious upstairs loft adds even more flexibility to this already generous home. Use it as a game room, playroom, home office, reading nook, or additional gathering space—the possibilities are endless. Step outside and imagine summer evenings, weekend barbecues, gardening, or watching the kids and pets enjoy the fenced backyard, added in 2024. The two-car garage provides convenient parking along with plenty of room for storage and everyday extras. Major updates have already been taken care of, including the roof in 2020, HVAC in 2018, and water heater in 2024, giving you added peace of mind and allowing you to focus on making this home your own. The location is just as appealing. Enjoy the welcoming small-town atmosphere of Mascoutah while being conveniently close to I-64, MidAmerica St. Louis Airport, shopping and dining in O’Fallon and Belleville, and Scott Air Force Base, just 10 minutes away. * VA assumption available! 6% interest rate ask your agent for details! Come see everything this Timberbrook gem has to offer. Schedule your showing today!

455 Falling Leaf Way, Mascoutah
502 Fontainebleau, O'Fallon
$330,000
4 Beds ⋅ 2 Baths ⋅ 26058551 MLS ⋅ ACTIVE Status
Welcome to 502 Fontainbleau in O’Fallon! This spacious 4-bedroom, 2-bath home offers 2,161 square feet of comfortable living space with plenty of room to spread out. The walk-out basement is made for entertaining, featuring a cozy fireplace and bar area—perfect for hosting friends, game nights, or relaxing at home. Step outside and enjoy multiple outdoor living spaces, including a deck and backyard patio, ideal for grilling, entertaining, or simply unwinding. A two-car garage provides convenient parking and additional storage. Located near area schools, this home combines generous living space, great entertaining areas, and everyday functionality. With four bedrooms, a walk-out basement, fireplace, bar, deck, and patio, 502 Fontainbleau has plenty to offer its next owner.

502 Fontainebleau, O'Fallon
Start Your Search