Add Listing
    For Sale
    • For Sale
    • For Lease
    • Recently Sold
    • Property Lookup
    • Brokers
    AI Search
    Back to Search
    The Largest CRE Database in the US with Over 1 Million Listings

    421 E 15th Street Helena, MT 59601

    View on Map
    For Sale
    Under Contract
    $670,000

    MULTI_FAMILY - Other - Helena, MT

    Lot size:
    0.16 Acres
    Added:
    Oct 6, 2025
    Days on Market:
    178
    Last Refresh:
    Apr 1 at 12:06 am

    Property Features for 421 E 15th Street

    General Information

    Property type
    Residential Multi Family
    Property subtype
    Other
    Standard status
    Active Under Contract
    APN
    05188830442150000
    Lot size
    0.16 Acres

    Taxes and HOA fees

    TaxYear
    2024
    TaxDescription
    CENTRAL ADDN NO 1, S30, T10 N, R03 W, BLOCK 28, Lot 1 - 2
    TaxAnnualAmount
    5195

    Building Details

    Year built
    1971
    Floors in Building
    2
    Number of units
    4
    Architectural style
    Other

    We can help!

    Listing Contact
    Kathy Brown
    Kathy Brown

    Listing agent Kathy Brown License #RRE-RBS-LIC-70986

    Listing office Keller Williams Capital Realty 130 Neill Ave, Helena, MT

    Listing date Oct 6, 2025

    MLS# 30058506

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

    Overview

    Helena, MT Four-Plex Investment

    This is a four-plex investment property located in Helena, Montana. The property is fully occupied with long-term renters. Each unit includes a range and refrigerator, as well as washer and dryer hookups. A large parking area provides space for tenants and guests. Each unit is separately metered for electric. Heat is provided by a hot water gas boiler. The landlord is responsible for the gas bill. The lot size is 0.163 acres.
    Property Profile Insight Report Location Intelligence

    Current Use by Public Records

    Montana Crisis Response ... Crisis Center

    Suggested Use

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

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

    Location Insight

    • Map
    • Local Demand
    City
    Helena
    County
    Lewis and Clark
    State
    Montana
    Longitude
    -112.026832
    Latitude
    46.593632

    Nearby Similar for Sale

    • $675,000

      Mixed-Use Property with Large Shop

      One-level home with shop near Helena, offering business potential.
      3660 N Montana Avenue, Helena, MT 59602
      View Details
    • $650,000

      Helena Multifamily Investment Opportunity

      Six-unit multifamily property in central Helena, convenient location.
      804 Logan Street, Helena, MT 59601
      View Details
    • $450,000

      Helena Duplex with 3-Car Garage

      Well-maintained duplex in central Helena, ideal for investment or multi-generational living.
      410 S Montana Avenue, Helena, MT 59601
      View Details
    • $595,000

      Mixed-Use Property with Income Potential

      Three buildings: house, apartment, and office space on large lot.
      5530 N Montana Avenue, Helena, MT 59602
      View Details
    • $425,000
      2,880 SF

      Industrial Building with Fenced Wareyard

      2,880 SF steel building with shop and office space.
      3109 Bozeman Ave, Helena, MT
      View Details
    • $899,000
      8,874 SF

      Leased Retail Building on Montana

      Fully leased retail building with income and parking.
      1740 N Montana Ave, Helena, MT 59601
      View Details
    • $650,000

      Established Convenience Store Business Opportunity

      Two established convenience stores for sale, business only.
      615 Helena Avenue, Helena, MT 59601
      View Details
    • $375,000

      Helena Duplex in Downtown Area

      Income-generating duplex in downtown Helena with two units.
      619 E Broadway Street, Helena, MT 59601
      View Details
    • $1,095,000
      3,175 SF

      Medical Office Condo For Sale

      3,175 SF medical office condo in South Hills medical district.
      2480 Tracy Dr, Helena, MT
      View Details
    • $735,000

      Helena Office Building For Sale

      Office building with federal lease and long-term tenancy.
      790 Colleen Street Helena, MT 59601
      View Details
    • $725,000
      20,212 SF

      Queen City Exxon C-Store

      Prime c-store with high traffic and growth prospects.
      1721 Cedar St Helena, MT 59601
      View Details
    • $1,049,000
      6,000 SF

      Retail Building on Corner Lot

      Retail building for sale with high traffic and ample parking.
      607 W Custer Ave, Helena, MT 59602
      View Details

    FAQs

    What type of property is this?
    Quadplex - Fully occupied four-plex with long-term renters in Helena, Montana.
    Where is this quadplex located?
    The property is located at 421 E 15th Street Helena, MT.
    What is the asking price?
    The asking price for this property is $670,000.
    What are key features of this property?
    This property features: Fully occupied 4‑plex providing immediate rental income.; Long‑term renters in place.; Each unit includes range, refrigerator, and washer/dryer hookups.
    (406) 459-8045
    We can help!
    Listing Contact
    Kathy Brown
    Kathy Brown
    Real Estate License ID: RRE-RBS-LIC-70986
    Learn More
    Request Owner's contact information
    Message sent successfully
    Error
    If you are the owner or broker of this property and would like to edit or remove this listing please send a message to web site administrator.
    Message sent successfully
    Error
    Email to Your Friends
    Link copied to clipboard
    Separate multiple addresses with a comma
    Message sent successfully
    Error

    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
    Thanks! Your message was sent.
    Error! Your message wasn't sent.
    Please enter your name
    Please enter email
    Please enter the email in the correct format
    Please enter phone
    Please enter the number in the correct format
    Please enter message
    Thank You

    You are Unsubscribed From Notifications

    Google sign-in failed. Please try again or use another login method.
    Sign Up Successful!
    You now have access to more from Realmo!