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    Dallas Duplex: Turnkey Investment Title is generated by Realmo AI

    3709 Mount Royal Street, Dallas, TX 75211

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    For Sale
    $379,000

    Duplex - Dallas, TX

    Type:Duplex
    Property size:
    1,424 SF
    Lot size:
    0.16 Acres
    Price / SF:
    $266/SF
    Added:
    Apr 12, 2026
    Days on Market:
    35
    Last Refresh:
    May 16 at 10:06 am

    Property Features for 3709 Mount Royal Street

    General Information

    Property type
    Residential Multi Family
    Property subtype
    Duplex
    Bedrooms
    4
    Bathrooms
    2
    Rooms
    Bathroom 1, Bathroom 2, Bedroom 1, Bedroom 2, Bedroom 3, Bedroom 4
    Parking
    6
    Parking features
    Driveway, Garage
    Interior features
    Granite Counters, High Speed Internet Available
    Appliances
    Cooktop, Cooktop - Gas, Microwave, Refrigerator
    Standard status
    Active
    APN
    00000344107000000
    Size
    1,424 SF
    Lot size
    0.16 Acres

    Utilities

    Heating system
    Central, Natural Gas
    Cooling system
    Central Air, Electric

    Building Details

    Year built
    1942
    Floors in Building
    1
    Flooring type
    Tile, Wood
    Roof type
    Composition
    Architectural style
    Other

    We can help!

    Listing Contact
    Peter Mester

    Listing agent Peter Mester License #0765963

    Listing office BK Real Estate 9500 Ray White Road, North Richland Hills, TX

    Listing date Apr 12, 2026

    MLS# 21218384 Listing URL

    Copyright © 2026 North Texas Real Estate Information Systems, Inc. All rights reserved. All information provided by the listing agent/broker is deemed reliable but is not guaranteed and should be independently verified.

    HighLights

    • Immediate rental income of $2,675/month with leases in place.
    • Significantly reduced price of $379,000 compared to a 2022 appraisal of $475,000.
    • Two detached garages, including a two‑car garage with ADU conversion potential.
    • Both units feature significant upgrades: paint, refinished wood floors, stone countertops, and updated bathrooms.
    • Updated windows, composition roof, exterior paint, and updated HVAC units.
    • Each unit is a 2 bedroom, 1 bathroom layout.

    Overview

    This duplex in Cockrell Hill presents a turnkey investment opportunity. Both units are leased through late 2026 and early 2027, generating $2,675 a month in rental income. Each unit features 2 bedrooms and 1 bathroom within 712 square feet, totaling 4 bedrooms and 2 bathrooms across 1,424 square feet. Significant upgrades have been made to both units, including paint, refinished wood floors, stone countertops, and updated bathrooms. The property also features updated windows, a composition roof, exterior paint, and updated HVAC units. The property includes two detached garages: a spacious two-car structure suitable for conversion to an Accessory Dwelling Unit (ADU) to potentially increase rental income and property value, plus an additional one-car garage, and driveway parking. Situated on a 0.163-acre lot.

    Financial Insights

    Value Estimation Calculated for Multifamily LT 5

    Conservative
    $277.0K
    NOI $24,931 @ 9.00% cap · cautious / downside scenario
    Moderate
    $356.2K
    NOI $24,931 @ 7.00% cap · market / base-case scenario
    Aggressive
    $498.6K
    NOI $24,931 @ 5.00% cap · optimistic / upside scenario

    NOI & Cap Rate Calculator

    NOI Build-Up
    Vacancy
    income lost from leasable area expected to sit empty during the year — subtracted from gross rent.
    EGI (Effective Gross Income)
    gross rent minus vacancy losses — the realistic income before paying operating costs.
    OpEx (Operating Expenses)
    recurring costs to operate the property (property tax, insurance, utilities, maintenance, management) — excludes financing and capital improvements.
    NOI (Net Operating Income)
    income a property generates after operating costs but before financing and taxes.
         Calculated for Multifamily LT 5

    Component $ $/SF
    Gross rent $39.6k $27.84
    − Vacancy −$4.0k −$2.83
    EGI $35.6k $25.01
    − OpEx −$10.7k −$7.50
    NOI $24.9k $17.51
    1,424 SF · lease $27.84/SF/yr · vacancy 10.16% · expense 30.00%

    Alternative Use Scenarios

    Best Use
    Multifamily LT 5
    $356.2K
    $311.6K – $415.5K (±1% cap)
    NOI $24,931 @ 7.0% cap · market cap 6.58%
    Second Best
    Apartment 5plus
    $309.3K
    $270.7K – $360.9K (±1% cap)
    NOI $21,653 @ 7.0% cap · market cap 5.71%
    Theoretical Best
    Office A
    $427.6K
    $374.1K – $498.8K (±1% cap)
    NOI $29,930 @ 7.0% cap · market cap 7.90%
    Zoning and permitted uses should be independently verified with local authorities.
    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 Grocery & Convenience Store

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

    Location Insight

    • Map
    • Local Demand
    City
    Dallas
    County
    Collin
    State
    Texas
    Longitude
    -96.879929
    Latitude
    32.745627

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    FAQs

    What type of property is this?
    Duplex - Turnkey duplex in Dallas with immediate rental income.
    Where is this duplex located?
    The property is located at 3709 Mount Royal Street Dallas, TX.
    What is the asking price?
    The asking price for this property is $379,000.
    What are key features of this property?
    This property features: Immediate rental income of $2,675/month with leases in place.; Significantly reduced price of $379,000 compared to a 2022 appraisal of $475,000.; Two detached garages, including a **two‑car garage with ADU conversion potential**.
    (972) 677-9172
    We can help!
    Listing Contact
    Peter Mester
    Real Estate License ID: 0765963
    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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