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    643 Madison Ave SE Grand Rapids, MI 49503

    Sponsored
    For Sale
    $900,000

    MULTI_FAMILY - Grand Rapids, MI

    Lot size:
    0.17 Acres
    Days on Market:
    5
    Last Refresh:
    Mar 2 at 9:06 pm

    Property Features for 643 Madison Ave SE

    General Information

    Property type
    Residential Multi Family
    Property subtype
    Other
    Standard status
    Active
    Rooms
    Bedroom 2, Bathroom 4, Bathroom 3, Basement, Bedroom 3, Bedroom 4, Bedroom 1, Bathroom 2, Bathroom 5, Bedroom 5, Bathroom 1, Bathroom 6
    Bedrooms
    5
    APN
    41-14-31-179-021
    Parking
    4
    Parking features
    Driveway
    Basement
    Full
    Lot size
    0.17 Acres

    Utilities

    Utilities
    Cable Available
    Sewer type
    Public Sewer
    Heating system
    Forced Air
    Cooling system
    Central Air

    Building Details

    Year built
    1893
    Number of units
    2
    Building materials
    Stone, Wood Siding
    Roof type
    Rubber, Composition

    We can help!

    Listing Contact
    Chad Sytsma

    Greenridge Realty Inc. (616) 974-5042

    Listing agent Chad Sytsma (616) 974-4262

    Listing date Feb 26, 2026

    MLS# 26006938 Listing URL

    Copyright © 2026 Michigan Regional Information Center, LLC. 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

    Renovated Two-Unit Home

    This renovated two-unit home offers a 'Condo Style' living experience. The property has been redesigned for owner occupants seeking flexibility, guest quarters, or additional income. The main floor unit features an ensuite, a second bedroom, and an additional full bath. The upper unit spans two floors, offering an open format with two ensuites, a powder room, and an expansive third floor suitable for work, entertaining, or use as an additional ensuite. The restoration, permitted 'to the studs', included new electrical, plumbing, HVAC, enhanced insulation, and soundproofing. The property is located just outside Heritage Hill and minutes from downtown, hospitals, dining, and shopping. This location offers historic character with the amenities of new construction.
    Property Profile Insight Report Location Intelligence

    Current Use by Public Records

    Duplexes

    Suggested Use

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

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

    Location Insight

    • Map
    • Local Demand
    City
    Grand Rapids
    County
    Kent
    State
    Michigan
    Longitude
    -85.659311
    Latitude
    42.950313

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    FAQs

    What type of property is this?
    Duplex - Spectacularly renovated two-unit home near downtown Grand Rapids.
    Where is this duplex located?
    The property is located at 643 Madison Ave SE Grand Rapids, MI.
    What is the asking price?
    The asking price for this property is $900,000.
    What are key features of this property?
    This property features: - Fully renovated 'to the studs' with new electrical, plumbing, HVAC, enhanced insulation, and soundproofing.; - Two-unit home offering flexibility for owner occupancy, guest quarters, or rental income.; - Prime location near Heritage Hill, downtown, hospitals, dining, and shopping.
    (616) 813-2436
    Request Owner's contact information
    643 Madison Ave SE Grand Rapids, MI 49503
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    Grand Rapids, MI 49503
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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
    643 Madison Ave SE Grand Rapids, MI 49503
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    We can help!
    Listing Contact
    Chad Sytsma
    (616) 813-2436 (616) 974-4262 (616) 575-1800
    Learn more
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