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    The Largest CRE Database in the US with Over 1 Million Listings

    109 N Mill St Saint Louis, MI 48880

    Sponsored
    For Lease
    $1,500 /Mo ($2 SF/Yr)

    Office Building - St Louis, MI

    Property size:
    6,400 SF
    Lot size:
    0.16 Acres
    Days on Market:
    1
    Last Refresh:
    Feb 24 at 9:06 pm

    Property Features for 109 N Mill St

    General Information

    Property type
    Commercial Lease
    Property subtype
    Other
    Standard status
    Active
    Zoning
    Commercial
    Rooms
    Basement
    Basement Y/N
    1
    Size
    6,400 SF
    Lot size
    0.16 Acres

    Utilities

    Heating system
    Forced Air

    Building Details

    Year built
    1900
    Building materials
    Brick
    Roof type
    Membrane
    Architectural style
    Other

    We can help!

    Listing Contact
    Bob Fall
    Bob Fall

    CENTURY 21 LEE-MAC REALTY (989) 463-6085

    Listing agent Bob Fall (989) 463-6085

    Listing date Feb 24, 2026

    MLS# 1942462 Listing URL

    Copyright © 2026 Northern Great Lakes Realtors MLS. All rights reserved. All information provided by the listing agent/broker is deemed reliable but is not guaranteed and should be independently verified.

    Learn more

    Property Insight Report

    Overview

    Mixed-Use Building in Downtown St. Louis

    Located in the vibrant downtown of St. Louis, Michigan, this 6400 square foot mixed-use building features two storefronts. The property is situated in a prime location within the downtown business district, a few steps from M46 and three miles from US 127. The retail space can function as one large storefront or be divided into two separate units. The north side of the building has been renovated in recent years, including newer flooring, front windows, and exposed tin ceilings. A newer membrane roof with a lifetime warranty has been installed. The upper level comprises 3200 square feet of unfinished space zoned for residential use, with the potential for four apartments. The State of Michigan has incentive programs through the Michigan Economic Development Corporation, which could provide funding for the renovations. The property also includes a single-car garage and a vast parking space. One storefront could be used for a desired business, and the other leased to produce immediate income.
    Property Profile Insight Report Location Intelligence

    Current Use by Public Records

    Storefront properties

    Suggested Use

    Law Firm Restaurant Spa & Massage Center Hair Salon Nail Salon Building Supply Gym & Fitness Center Auto Repair Shop Big Box & Wholesale Store Daycare Center

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

    Location Insight

    • Map
    • Local Demand
    City
    Saint Louis
    County
    Gratiot
    State
    Michigan
    Longitude
    -84.6091
    Latitude
    43.408257

    FAQs

    What type of property is this?
    Mixed-use property - 6400 sqft building with storefronts and residential potential.
    Where is this mixed-use property located?
    The property is located at 109 N Mill St Saint Louis, MI.
    What is the lease rate?
    The lease rate is $2 SF/Yr.
    What are key features of this property?
    This property features: - 6400 sq ft building in a prime downtown location near M46 and US 127.; - Two storefronts offer business and rental income potential.; - 3200 sq ft unfinished upstairs zoned for 4 residential apartments.
    (989) 737-3927
    Request Owner's contact information
    109 N Mill St Saint Louis, MI 48880
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    Saint Louis, MI 48880
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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
    109 N Mill St Saint Louis, MI 48880
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    We can help!
    Listing Contact
    Bob Fall
    Bob Fall
    Real Estate License ID: 6501436188
    (989) 737-3927 (989) 463-6085
    Learn more
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