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    Downtown Belleville Office Space Available Title is generated by Realmo AI

    15 N 1st St, Belleville, IL

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    For Lease
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    Office suites available in downtown Belleville near courthouse and amenities.

    Type:OFFICE
    Property size:
    3,450 SF
    Lot size:
    0.80 Acres
    Added:
    Aug 12, 2025
    Days on Market:
    279
    Last Refresh:
    Apr 5 at 8:12 pm

    Property Features for 15 N 1st St

    General Information

    Standard status
    Active
    Size
    3,450 SF
    Lot size
    0.80 Acres
    Property subtype
    OFFICE

    Spaces For Lease

    at 15 N 1st St Contact us

    We can help!

    Listing Contact
    Michael T Durbin

    Listing agent Michael T Durbin

    Listing office BARBERMurphy

    Listing date Aug 12, 2025

    Source Moodyscre

    Displayed information is deemed reliable but is not guaranteed and should be independently verified.

    All listing content including descriptions, pricing, images are the copyrighted material of BARBERMurphy

    HighLights

    • Prime downtown Belleville location, just a block from St. Clair County Courthouse and walking distance to shops and restaurants.
    • 2,700 SF 2nd‑floor suite with elevator access, kitchenette, slop sink, and shared ADA restrooms.
    • Fiber optics and Wi‑Fi boosters throughout the suite.
    • Private parking for tenants behind the building and in a lot across A Street.
    • Large open area workstations and 4 offices (3 are combined and can be separated).
    • Secure card access to all suites.

    Overview

    Available for lease is a 2,700-square-foot office space located in downtown Belleville. Situated on the second floor, the suite includes a kitchenette, slop sink, shared ADA restrooms, and a common lounge area shared with a neighboring tenant. Elevator access is available. The suite features a large open area with workstations, along with four offices, three of which are combined but can be separated. Tenant parking is provided behind the building and in a lot across A Street, with street parking available for guests. The suite is equipped with Fiber Optics and Wi-Fi Boosters throughout. Tenants have access to a large break room on the first floor, complete with a bar and sitting area. An additional 750-square-foot suite is available on the ground level, featuring an open layout, restroom, and kitchenette. Secure card access is provided to all suites. The tenant is responsible for janitorial services. The property is located one block from the St. Clair County Courthouse and within walking distance of various shops and restaurants. Belleville’s Downtown Public Square hosts numerous events, festivals, parades, and concerts throughout the year.
    Property Profile Insight Report Location Intelligence

    Current Use by Public Records

    Allurigem (Bike/Boat/Book/etc) Store Donovan Rose Nester ... Law Firm Junior Code Academy Vocational School Artigem (Bike/Boat/Book/etc) Store Green Mind Physicians Physician

    Suggested Use

    Restaurant Real Estate Agency Building Supply Spa & Massage Center Dental Office Law Firm Big Box & Wholesale Store Hair Salon Auto Repair Shop Nail Salon

    Zoning and permitted uses should be independently verified with local authorities.

    Location Insight

    • Map
    • Local Demand
    City
    Belleville
    County
    St. Clair
    State
    Illinois
    Longitude
    -89.9859
    Latitude
    38.5142

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    FAQs

    What type of property is this?
    Office units - Office suites available in downtown Belleville near courthouse and amenities.
    Where is this office units located?
    The property is located at 15 N 1st St Belleville, IL.
    What is the lease rate?
    The lease rate is $16 SF/Yr.
    What are key features of this property?
    This property features: Prime downtown Belleville location, just a block from St. Clair County Courthouse and walking distance to shops and restaurants.; **2,700 SF 2nd‑floor suite with elevator access, kitchenette, slop sink, and shared ADA restrooms.**; Fiber optics and Wi‑Fi boosters throughout the suite.
    (618) 277-4400 Call to check price and availability
    We can help!
    Contact for Pricing
    Please call us for current price
    and status of this listing
    Michael T Durbin
    Learn More
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    Realmo Value Estimations

    Realmo estimates a property’s market value using a proprietary methodology that incorporates public data and user-submitted information. This cumulative value is generated by integrating a variety of conventional and innovative methods. 

    Disclaimer

    These figures are not official appraisals and should not be used as a substitute for a valuation performed by a licensed appraiser.
    Actual market value may differ due to factors not captured in the data. Estimates are offered for informational purposes only, and users should conduct independent research before making financial or investment decisions.
    By using this feature, you acknowledge that Realmo is not responsible for actions taken based on these estimates.

    AI approach

    Realmo AI Method estimates property value using machine learning models trained on millions of comparable listings, transactions, and market signals. It analyzes property features, location intelligence data, and current market dynamics to predict the most probable market value in real time.

    Realmo CapRate Calculation

    Realmo calculates the Capitalization Rate (Cap Rate) to help estimate a property's potential return on investment. The Cap Rate is a fundamental metric in commercial real estate that measures the relationship between a property's net operating income and its market value.

    How We Calculate Cap Rate

    Cap Rate Formula:
    Cap Rate (%) = (Net Operating Income / Property Value) × 100

    Net Operating Income (NOI) Formula:
    NOI = Area × Lease Rate × (1 - Vacancy Rate) × (1 - Operating Expense Ratio)

    Components

    Net Operating Income (NOI) represents the annual income a property generates after operating expenses:

    • Area: Building square footage from property records
    • Lease Rate: Annual $/sqft based on market data for the property type and geographic location
    • Vacancy Rate: Percentage of unoccupied space based on market data for the property type and location
    • Operating Expense Ratio: Operating costs as a percentage of income, varies by property type

    Property Value is derived from:

    • Recent sale price (if available)
    • Statistical models using comparable sales
    • AI-powered valuation estimates

    Example Calculation

    For a 100,000 sqft Office Building:

    • Lease Rate: $25.00/sqft/year (market data for Office in this area)
    • Vacancy Rate: 8% (market data for Office in this area)
    • Operating Expense Ratio: 35% (typical for Office properties)
    • Property Value: $15,000,000

    Step 1: Calculate NOI

    NOI = 100,000 × $25.00 × (1 - 0.08) × (1 - 0.35)
    NOI = 100,000 × $25.00 × 0.92 × 0.65
    NOI = $1,495,000/year

    Step 2: Calculate Cap Rate

    Cap Rate = ($1,495,000 / $15,000,000) × 100
    Cap Rate = 9.97%

    Property Type Considerations

    Net Operating Income calculations vary by property type due to different operating expense ratios:

    • Office: Higher expenses (30-40%) for HVAC, utilities, maintenance
    • Retail: Moderate expenses (25-35%) for common area maintenance
    • Industrial/Warehouse: Lower expenses (15-25%) for minimal tenant services
    • Multifamily: Moderate expenses (35-45%) including property management
    • Self-Storage: Lower expenses (25-35%) due to minimal maintenance

    Market lease rates and vacancy rates are specific to each property type and geographic location, reflecting local market conditions.

    Disclaimer

    These calculations are estimates for informational purposes only and should not be used as a substitute for professional financial analysis or appraisal.

    • Cap Rate calculations depend on market data that may change over time
    • Actual operating expenses, lease rates, and vacancy rates may differ from market averages
    • Individual property conditions, lease terms, and tenant quality significantly impact actual NOI
    • Property value estimates are approximations and not official appraisals
    • Cap rates vary widely by market, property condition, and investment risk profile

    Professional Guidance Recommended: Before making any investment or financial decisions, consult with licensed appraisers, commercial real estate brokers, and financial advisors who can evaluate your specific property and circumstances.
    By using this feature, you acknowledge that Realmo is not responsible for investment decisions or actions taken based on these estimates.

    Cap approach

    Capitalization Method calculates value based on estimated net operating income (NOI) and applying a market-based capitalization rate (cap rate), we estimate what a typical investor might be willing to pay for it.

    Comparable approach

    Comparable estimate is based on recent sales of similar nearby properties, adjusted for factors like size, condition, and location.

    Relative

    Relative property class coefficient uses factors that account for typical price differences between various asset types (e.g., retail vs. industrial) to provide a more accurate market-aligned estimate.

    Geo

    Comparable Sales Method, enhanced by Geo coefficients — location-based adjustment factors that reflect differences in price levels across neighborhoods, cities, or regions ensuring a more accurate, market-sensitive valuation.

    Stat Estimate

    This method estimates value based on actual market adjusted recent (~5 years) sales of comparable properties around by location and property type.

    • Ranges - area data calculated by industry standard IQR Outlier Removal Method
    • Range-from: 75% of all similar sales ($/sqft) are above this value
    • Range-to: 75% of all similar sales ($/sqft) are below this value
    AI Estimate

    This method estimates value based on AI market estimation of comparable properties around by location and property type.

    • Ranges - area data calculated by industry standard IQR Outlier Removal Method
    • Range-from: 75% of all estimations ($/sqft) are above this value
    • Range-to: 75% of all estimations ($/sqft) are below this value
    Alternative use

    Estimate considers the property’s potential value if used for a different purpose-based on zoning, demand, and market feasibility.

    More about this property
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