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    Four-Unit Residential Income Property Title is generated by Realmo AI

    920 S Washington Street, Aberdeen, SD 57401

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    Picture of Quadplexes at 920 S Washington Street, Aberdeen, SD
    For Sale
    $160,000

    MULTI_FAMILY - Aberdeen, SD

    Added:
    Apr 15, 2026
    Days on Market:
    52
    Last Refresh:
    Jun 5 at 7:06 am

    Property Features for 920 S Washington Street

    General Information

    Property type
    Residential Multi Family
    Property subtype
    Other
    Standard status
    Active

    Taxes and HOA fees

    Tax Year
    2025
    Tax Description
    Lots 3-4, Block 33 Thomas Addition to City of Aberdeen, Brown County, South Dakota
    Tax Annual Amount
    1975

    Building Details

    Year built
    1910

    We can help!

    Listing Contact
    Danelle McMaster

    Listing agent Danelle McMaster License #13173

    Listing office Dakota Plains Real Estate & Development 10 Railroad Ave SW Suite 209 PO Box 737, Aberdeen, SD

    Listing date Apr 15, 2026

    MLS# 26-240 Listing URL

    Copyright © 2026 Aberdeen Board of Realtors. All rights reserved. All information provided by the listing agent/broker is deemed reliable but is not guaranteed and should be independently verified.

    HighLights

    • 2‑story, 4‑unit property built in 1910 near Northern State University campus
    • Coin‑operated washer and dryer on site
    • 3 window AC units
    • Furnace rebuilt in 2025
    • Shingles on main house are about 2 years old; rubber roof is about 4 years old
    • Walk‑up attic offers potential for an added unit; space for adding 2 units on the lower level

    Overview

    This two-story four-unit residential income property offers a straightforward rental setup with coin-operated washer and dryer already on site. The building includes three window A/C units and a furnace that was rebuilt in 2025. Exterior improvements include shingles on the main house installed about two years ago and a rubber roof installed roughly four years ago.

    The property is located close to the Northern State University campus, and it includes access to an unfinished space that could support additional living area. There is a walk-up attic that could potentially be added as a unit, and the lower level also appears to have room where two additional units could be added.

    For buyers, this asset may appeal to investors or owner-operators looking for an income property with functional current units and documented opportunities for expansion. The current owner, a builder, is available to walk through the property to answer questions about the building and how alterations could be approached. Please allow 24 hours’ notice for all showings.
    Property Profile Location Intelligence

    Current Use by Public Records

    Quadplexes

    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
    Aberdeen
    County
    Brown
    State
    South Dakota
    Longitude
    -98.485595
    Latitude
    45.4553

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    FAQs

    What type of property is this?
    Quadplex - Four-unit, two-story rental building near Northern State University with coin laundry and recent major system updates.
    Where is this quadplex located?
    The property is located at 920 S Washington Street Aberdeen, SD.
    What is the asking price?
    The asking price for this property is $160,000.
    What are key features of this property?
    This property features: 2‑story, 4‑unit property built in 1910 near Northern State University campus; Coin‑operated washer and dryer on site; 3 window AC units
    (605) 225-1800
    We can help!
    Listing Contact
    Danelle McMaster
    Real Estate License ID: 13173
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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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