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    Private Office Suite with Entrance Title is generated by Realmo AI

    531 N Riverside Avenue, Saint Clair, MI 48079

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    For Lease
    $950/Mo $33 SF/Yr (calc)

    COMMERCIAL - Saint Clair, MI

    Property size:
    337 SF
    Added:
    Feb 9, 2026
    Days on Market:
    115
    Last Refresh:
    Jun 4 at 9:06 am

    Property Features for 531 N Riverside Avenue

    General Information

    Property type
    Commercial Lease
    Property subtype
    Other
    Standard status
    Active
    APN
    74-07-360-0006-000
    Size
    337 SF

    Utilities

    Water source
    Public

    Building Details

    Year built
    1970

    We can help!

    Listing Contact
    Elizabeth Schweihofer

    Listing agent Elizabeth Schweihofer License #MISPE-6501364727

    Listing office St. Clair Realty 531 N Riverside Site 200, St. Clair, MI

    Listing date Feb 9, 2026

    MLS# 50199093

    Copyright © 2026 Multiple Listing Service MiRealSource. All rights reserved. All information provided by the listing agent/broker is deemed reliable but is not guaranteed and should be independently verified.

    HighLights

    • Lower‑level private office space with private entrance off the front porch of a recognized downtown St. Clair building
    • Completely open office layout, with a half bath in the hallway just outside the office door
    • Updated with new flooring and paint throughout
    • Storage closet inside the office; additional storage may be available in the building
    • Utilities included in rent: heat, electric, and water
    • Location on N. Riverside Ave, across from the St. Clair Inn and within a short walk to restaurants and Palmer Park/boardwalk along the St. Clair River

    Overview

    This lower-level private office suite has been completely updated with new flooring and fresh paint throughout. The space is currently configured as a largely open area that can work as-is or accommodate a tenant’s build-out plans. A half bath is located in the hallway just outside the office door, and there is a storage closet within the office.

    The suite is offered in a prominent downtown building on N. Riverside Avenue, directly across from the St. Clair Inn. The private entrance is accessed off the front porch of the building, and the area is within walking distance of restaurants as well as Palmer Park and the St. Clair River boardwalk.

    This layout is well-suited for a business that values privacy without giving up flexibility for interior customization. Rent includes heat, electric, and water, and the building also offers additional storage options for qualified tenants.
    Property Profile Location Intelligence

    Current Use by Public Records

    Office Units

    Suggested Use

    Real Estate Agency Law Firm Restaurant Spa & Massage Center Dental Office Hair Salon Nail Salon Building Supply Gym & Fitness Center Auto Repair Shop

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

    Location Insight

    • Map
    • Local Demand
    City
    Saint Clair
    County
    St. Clair
    State
    Michigan
    Longitude
    -82.485358
    Latitude
    42.828075

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      Two-Story Multi-Use Building

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    FAQs

    What type of property is this?
    Office units - Updated lower-level office suite with private entrance and an in-hallway half bath, with utilities included in rent.
    Where is this office units located?
    The property is located at 531 N Riverside Avenue Saint Clair, MI.
    What is the lease rate?
    The lease rate is $950 /Mo.
    What are key features of this property?
    This property features: Lower‑level private office space with private entrance off the front porch of a recognized downtown St. Clair building; Completely open office layout, with a half bath in the hallway just outside the office door; Updated with new flooring and paint throughout
    (810) 459-4763
    We can help!
    Listing Contact
    Elizabeth Schweihofer
    Real Estate License ID: MISPE-6501364727
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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.

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