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    Historic Union Square Multifamily Townhouse Title is generated by Realmo AI

    55 S FULTON AVE, Baltimore, MD 21223

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    For Sale
    $339,000

    Multi-Family, End of Row/Townhouse - BALTIMORE, MD

    Property size:
    3,660 SF
    Lot size:
    0.05 Acres
    Price / SF:
    $92/SF
    Added:
    Apr 13, 2026
    Days on Market:
    39
    Last Refresh:
    May 21 at 5:06 pm

    Property Features for 55 S FULTON AVE

    General Information

    Property type
    Residential Multi Family
    Parking features
    On Street
    Interior features
    2nd Kitchen, Bathroom - Soaking Tub, Wood Floors
    Exterior features
    Sidewalks, Street Lights
    Standard status
    Active
    Size
    3,660 SF
    Lot size
    0.05 Acres

    Taxes and HOA fees

    Tax Annual Amount
    7082

    Utilities

    Heating system
    Central
    Cooling system
    Other (Cooling)

    Building Details

    Year built
    1870
    Flooring type
    Hardwood
    Building materials
    Brick
    Architectural style
    Other

    We can help!

    Listing Contact
    Rich Phillips

    Listing agent Rich Phillips

    Listing office Northrop - Frederick/Urbana 3546 Worthington Blvd, MD

    Listing date Apr 13, 2026

    MLS# MDBA2210724 Listing URL

    Copyright © 2026 Long & Foster Real Estate. All rights reserved. All information provided by the listing agent/broker is deemed reliable but is not guaranteed and should be independently verified.

    HighLights

    • Two Units: Live in one and rent the other for income potential, or ideal for multi‑generational living.
    • Spacious 3,660 sq. ft. Federal‑Style Townhouse with 5 bedrooms and 3.5 bathrooms.
    • Prime Union Square Location: Close to shops, dining, parks, and public transportation.
    • Historic Charm: Built in 1870, offering a chance to own a piece of Baltimore's history with original architectural details.
    • Recently replaced Carrier high efficient natural gas HVAC systems and Anderson windows on main level.
    • Flexible Living Options: Configured as a two‑unit property with a 4‑bedroom duplex and a 1‑bedroom main‑level unit.

    Overview

    Located in Union Square, this 3,660 sq. ft. Federal-style end-of-row townhouse, constructed in 1870, offers a blend of historic character and customization potential. The property is configured as a two-unit setup, providing flexibility and functionality. Unit 1 is a spacious duplex with 4 bedrooms and 2 full bathrooms. Unit 2 is a main-level unit with 1 bedroom and 1.5 bathrooms. It includes two kitchens, making it suitable for multifamily living or rental income. The property features 5 bedrooms and 3.5 bathrooms. It has a partially finished basement that can be converted into a media room, gym, or retreat. Outdoor space is available for a small garden or patio. The property has two recently replaced Carrier high efficient natural gas HVAC systems installed. Anderson Windows were installed on the main level within the last year. The location provides access to shops, dining, parks, and public transportation. The property is currently configured as two units, with the option to live in one and rent the other.
    Property Profile Insight Report Location Intelligence

    Current Use by Public Records

    Duplexes

    Suggested Use

    Law Firm Restaurant Real Estate Agency Spa & Massage Center Dental Office Hair Salon Nail Salon Food Market Gym & Fitness Center Skin Care Clinic

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

    Location Insight

    • Map
    • Local Demand
    City
    Baltimore
    County
    Baltimore
    State
    Maryland
    Longitude
    -76.64481
    Latitude
    39.28636

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    FAQs

    What type of property is this?
    Duplex - Charming 1870 Federal-style townhouse in vibrant Union Square.
    Where is this duplex located?
    The property is located at 55 S FULTON AVE Baltimore, MD.
    What is the asking price?
    The asking price for this property is $339,000.
    What are key features of this property?
    This property features: Two Units: Live in one and rent the other for income potential, or ideal for multi‑generational living.; Spacious 3,660 sq. ft. Federal‑Style Townhouse with 5 bedrooms and 3.5 bathrooms.; Prime Union Square Location: Close to shops, dining, parks, and public transportation.
    (888) 536-0216
    We can help!
    Listing Contact
    Rich Phillips
    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.

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