One of a kind office/flex space building. The building consists of several multi purpose rooms, 1 conference room, lobby and reception area, two bathrooms, a large break room, bullpen area and an ample ample sized warehouse/storage area. In addition to the layout of the building the property also has 3 phase electric, full building backup generator, all new plumbing, new gutters, HID access, security system with cameras, a tech room with IT cage and back up battery and a 60 +/- car parking lot. The property has been meticulous taken care of and has recently been cleaned, freshly painted, new commercial trim installed, carpets cleaned and all interior doors sanded and stained. This building doesn't have load bearing walls to it can have many uses and not just limited to an office use. Location: City Brokered by AH Realty Advisors, LLC

Presenting a prime investment opportunity in the heart of Belleville, Illinois—a 12-unit apartment building located in a quiet, residential neighborhood. Currently, approximately 83% of the units are rented, offering immediate income with room to increase cash flow through lease-up and potential rent adjustments. The building includes a mix of spacious one-bedroom and two-bedroom units, each offering generous layouts, ample natural light, and separately metered gas and electric utilities. Tenants enjoy convenient off-street parking and secure entry access. There is also room for value-add improvements through cosmetic upgrades or rent increases. Ideally located just minutes from downtown Belleville, the property offers easy access to public transportation, local schools, shopping, and dining. It’s also approximately 20 minutes from Scott Air Force Base, one of the region’s largest and most stable economic drivers—making this property attractive to military personnel and civilian contractors alike. This turnkey property is ready to continue generating income from day one, with additional upside potential for future growth. Financials, rent roll, and property details are available upon request Brokered by Keller Williams Pinnacle

Massive 61,787 Sq.Ft. Facility with Prime Frontage & Unlimited Potential -- Looking for way more space? This property delivers! Boasting 61,787 sq.ft. of versatile space, this former school offers an incredible opportunity to reimagine, repurpose, and capitalize. With a partial newer roof, cafeteria, multiple gymnasiums, and 586 ft. of frontage on Mascoutah Ave (traffic count over 7,000/day), the possibilities are endless. The property sits on over 21 acres total, with 9 acres of unused land in the rear—perfect for expansion, agriculture, or future development. Whether you envision a church, senior/assisted living community, storage complex, event venue, or a large-scale school, this property checks every box for those with a big vision and major space requirements. Plenty of on-site parking, abundant lot space, and high-visibility frontage make this a standout investment with long-term upside. Brokered by Real Broker LLC

Turn-key investment property available in downtown Belleville, IL. Located at 1926 West Main Street just blocks from the Belleville Crossings Shopping Center, the new SW IL Justice & Workforce Development Campus and the IL State Police Crime Lab. High daily traffic count of 4700 VPD. Solid brick building, impeccably clean from the full basement to the 2nd floor tenant apartment(s). On site paved, lighted parking lot with 8 spaces. New building a/c unit, white reflective fiber and shingle roof(s) in last 2 years. Corner lot with good visibility. Half of 1st floor currently leased to Mexican restaurant providing monthly lease income. Other 1,800 sq ft half of 1st floor has been framed out for an additional business to be determined by the buyer/new owner. Space ideal for generating income from retail, slots, bar & grill, etc. Partial HVAC, electric and plumbing installed. 2nd floor has two 986 sq ft apartments, both currently leased providing additional in place rental income. Location: City, Corner Location, Downtown, High Traffic Brokered by RE/MAX Results Realty

**Downtown Belleville Office Building** Situated just one block from the St. Clair County Courthouse, this 8,500+ square foot building combines functionality and convenience in a prime downtown location. The interior features a layout designed for professional use, offering numerous private offices, spacious meeting rooms, and versatile work areas to accommodate various business needs. The property includes its own parking lot with over 15 spaces, a rare amenity in downtown Belleville, ensuring ease of access for employees and clients. Perfectly positioned near the courthouse and downtown amenities, this building is an ideal choice for law firms, corporate offices, or businesses. Property contains 2 parcels 08-28.0-204-013 & 08-28.0-204-012 Location: City Brokered by Strano & Associates

Prime Downtown Belleville Commercial Space – Turnkey Opportunity! Located in the vibrant heart of Downtown Belleville, this stunning early 20th-century commercial building offers 3,400 square feet of versatile space—ideal for your next restaurant, bar, retail concept, or creative business venture. Enjoy high visibility with approx. 1,550 daily passersby and a built-in customer base surrounded by retail shops, offices, and second-story condos/apartments. Just a half-block off Main Street and one block from Belleville City Hall and the St. Clair County Courthouse, this location puts you at the center of year-round downtown events and foot traffic. Previously home to a restaurant/bar, the space comfortably seats 60+ guests and features: Two full-service bars (main floor & second floor), His & hers restrooms on both floors, Commercial kitchen area, and a charming outdoor patio—perfect for warm-weather dining or entertainment. This is a rare opportunity to own or lease a well-positioned commercial space in one of Belleville’s most walkable, lively districts. Make your mark downtown—schedule a showing today! Brokered by Nester Realty

A rare and remarkable commercial offering, this distinguished historic property effortlessly combines classic architectural beauty with modern business functionality. Currently home to a well-established law office, the building showcases stunning period details—soaring ceilings, intricate woodwork, original millwork, and rich hardwood floors—that speak to its storied past. Every room exudes timeless character, from the welcoming foyer to the impressive formal spaces ideal for executive offices, client meetings, or collaborative work areas. A thoughtfully designed addition expands the property's versatility, featuring a beautifully finished lower level with a private entrance—perfect for a secondary office suite or separate business operation. The property includes 10 dedicated parking spaces, a detached garage, and spans three parcels, offering exceptional exterior space and future development possibilities. This is more than just an office—it's a statement of sophistication and legacy, ideal for professionals seeking a one-of-a-kind commercial space with enduring presence and charm. Whether you're looking to continue its commercial use or reimagine it as a grand residence, this property is a one-of-a-kind opportunity. Brokered by Strano & Associates

Great investment opportunity in a well-traveled Belleville location! Located at 1913 N Belt E, this commercial building offers 3,924 sq ft of space on a .35-acre lot with a parking lot that includes approximately 20 spaces. The building is divided into 4 commercial units, with 2 currently occupied by long-term tenants, providing immediate income with room to grow. With strong visibility and convenient access to nearby retail, restaurants, and major roads, this property is ideal for investors or business owners seeking value and versatility. Location: High Traffic Brokered by Century 21 Advantage

The Coachworks Building is now on the market. Don't miss this opportunity to own a piece of history in downtown Belleville. Built in 1835 this office building has seen the past, present and now ready to see the future with a new owner. The building consists of 20 small and large office spaces situated on 2 floors totaling 8,200 square feet. In addition to the offices there are two kitchens, five restrooms and two conference rooms that can be utilized by all tenants. The building has off street parking. There are several tenants occupying the building who are ob mostly month to month leases which can give this investment property a huge value add opportunity or even beneficial to a owner user looking to receive some income potential. Location: City, Corner Location, Industrial Area. New roof and entire exterior recently tuck pointed and painted. Brokered by AH Realty Advisors, LLC

Unlock the full potential of this high-visibility 1.3-acre commercial lot, ideally situated right on the main road with excellent traffic exposure. Whether you're looking to build retail, office, mixed-use, or service-based businesses, this location offers the space and flexibility to make it happen. Utilities nearby and easy access make development a breeze. With its generous size and unbeatable location, this property is a rare opportunity for investors, developers, or business owners ready to grow! Brokered by Keller Williams Pinnacle

Brokered by Avenue Realty Associates

Fantastic mixed-use opportunity near downtown Belleville! This 2-story brick building offers 1628 sq ft of commercial space on the main level-perfect for an office, showroom or studio-with a bathroom, kitchenette, and broth front and side entrances. The upper level features a beautifully updated 3-bedroom, 2-bathroom apartment with tall ceilings, exposed brick and an open-concept layout. Live upstairs and work downstairs or rent out one or both spaces for additional income. The property also includes a climate-controlled 2 car garage for extra storage space, 7-8 parking pad spaces and a full unfinished basement. Versatile, stylish and move-in ready-don't miss this exceptional investment opportunity! Brokered by RE/MAX Preferred

Brokered by Berkshire Hathaway HomeServices Select Properties

Discover the potential of 626 N 38th St in Belleville, IL—a standout commercial property perfectly positioned for your next business move. Whether you're launching a new venture or expanding your current operations, this flexible space offers excellent visibility in a high-traffic area. Located just off W Main Street, head north on N 38th Street and the property will be on your right—easy to find and conveniently close to major thoroughfares like IL-15 and IL-159. The interior offers spacious, adaptable layouts ideal for retail, office, or service-based businesses. Plus, it's surrounded by local shops, restaurants, and essential amenities, making it a smart choice for you and your clients. Opportunities like this don’t come often—come see how this space can work for you. Buyer to do due diligence for zoning regulations. Schedule your appointment to view. Brokered by RE/MAX Results Realty

Great location in an established business park. Medical/office. Plenty of storage space, finished basement & 2 bathrooms. Brokered by Thomas Realty Group LLC

Great location in an established business park, with ample parking! This building, previously used as a pharmacy, is now vacant and ready for customization to suit your business needs. It features 2 bathrooms, plenty of storage space, and includes a finished basement for additional use. Perfect for a variety of purposes! It can be subdivided as well. Additionally, this property can be leased with or without a buildout included for your new business adventure. The lease and terms are negotiable based on the space used and the buildout. *Agent related Location: Business Park, City, High Traffic, Suburban Brokered by Nester Realty

Great Main Street opportunity in the heart of downtown Belleville. Business office with reception area and private offices in the rear with off street parking. The tenant upstairs has been paying rent for 20 years....$350.00 per month. Has a lower level basement with good area for storage. The space was used as an attorney's office for 20 years. This property is being sold as is with seller to provide no inspections or repairs. Brokered by Berkshire Hathaway HomeServices Select Properties

A must-see historic building with over 11,600 sq. ft. on 1.53 acres, formerly home to the Ursuline Sisters of Mount St. Joseph. The property offers two levels of usable space including three large meeting rooms, numerous offices or classrooms, a commercial kitchen, dining area, and an elevator for full wheelchair accessibility. With 400 amp, 3-phase electrical service and solid structural bones, this is a full gut project with limitless potential for redevelopment. Property is being sold AS IS. Owner offers no warranties on condition, function, or permitted uses. Purchasers are encouraged to conduct their own due diligence on all information provided. Brokered by Real Broker LLC