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    4 Grand Lake Drive Monkey Island, OK 74331

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    Claim this Listing
    For Sale
    $874,900

    MULTI_FAMILY - Monkey Island, OK

    Lot size:
    1.20 Acres
    Added:
    Aug 27, 2025
    Days on Market:
    254
    Last Refresh:
    May 7 at 4:06 pm

    Property Features for 4 Grand Lake Drive

    General Information

    Property type
    Residential Multi Family
    Property subtype
    Other
    Rooms
    Basement
    Standard status
    Active
    APN
    210021478
    Lot size
    1.20 Acres

    Taxes and HOA fees

    Tax Year
    2024
    Tax Description
    PORT DUNCAN 2 REVISED PT LOTS 1 & 3 BLOCK 10 (AKA UNITS 5, 6, 7, & 8 OF T-6 OF TRACT A) 2438-467
    Tax Annual Amount
    6488

    Utilities

    Sewer type
    Private Sewer
    Heating system
    Heat Pump (Heating), Electric (Heating)
    Cooling system
    Ceiling Fan(s), Central Air

    Building Details

    Year built
    1983
    Floors in Building
    2
    Number of units
    6
    Building materials
    Frame

    We can help!

    Listing Contact
    Jeff Horany

    Listing agent Jeff Horany

    Listing office McGraw Realtors - Langley 1639 N 3rd St PO Box 820, Langley, OK

    Listing date Aug 27, 2025

    MLS# 25-1885 Listing URL

    Copyright © 2026 Northeast Oklahoma 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

    • Investment property generating $68,000 annual revenue.
    • Includes 2 additional lots for further development or building a custom home.
    • Located inside Port Duncan on Monkey Island.
    • Features a 4‑plex (four 2‑bed, 2‑bath units) and a duplex (one 2‑bed, 2‑bath and one 3‑bed, 2‑bath unit).
    • Recent upgrades include new granite and carpet in the duplex.
    • All units are currently leased.

    Overview

    Grand Lake Investment Opportunity

    This multifamily property on Grand Lake features six units generating $68,000 per year in revenue. Located inside Port Duncan on Monkey Island, the property includes a fourplex with four 2-bedroom, 2-bath units and a duplex with a 2-bedroom, 2-bath unit and a 3-bedroom, 2-bath unit. The duplex units have new granite countertops and carpet. All units are currently leased. The property also includes two additional lots suitable for further development or building a custom lake property. The overall property size is 1.2 acres. The Delaware County Assessor account numbers are 210021478, 210021475, 210021476, and 210021482. These four parcels are located in the neighborhood but are not currently part of the HOA. This property represents an investment opportunity on Grand Lake.
    Property Profile Insight Report Location Intelligence

    Current Use by Public Records

    Multifamily properties

    Suggested Use

    Real Estate Agency Restaurant Spa & Massage Center Building Supply Gym & Fitness Center Skin Care Clinic Big Box & Wholesale Store Hotel & Motel Bar & Pub Clothing & Fashion Store

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

    Location Insight

    • Map
    • Local Demand
    City
    Monkey Island
    County
    Ottawa
    State
    Oklahoma
    Longitude
    -94.859948
    Latitude
    36.592931

    FAQs

    What type of property is this?
    Multifamily property - Six-unit multifamily property with development potential on Grand Lake.
    Where is this multifamily property located?
    The property is located at 4 Grand Lake Drive Monkey Island, OK.
    What is the asking price?
    The asking price for this property is $874,900.
    What are key features of this property?
    This property features: Investment property generating $68,000 annual revenue.; Includes 2 additional lots for further development or building a custom home.; Located inside Port Duncan on Monkey Island.
    (918) 688-1411
    We can help!
    Listing Contact
    Jeff Horany
    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.

    More about this property
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    4 Grand Lake Drive, Monkey Island, OK 74331
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