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    11 Marlo Ln Hauppauge, NY 11788

    Sponsored
    For Sale
    Pending
    $799,999

    MULTI_FAMILY - Hauppauge, NY

    Property size:
    2,416 SF
    Lot size:
    0.38 Acres
    Days on Market:
    11
    Last Refresh:
    Feb 1 at 10:06 pm

    Property Features for 11 Marlo Ln

    General Information

    Property type
    Residential Multi Family
    Property subtype
    Other
    Standard status
    Pending
    Rooms
    Bedroom 2, Dining Room, Bathroom 2, Bedroom 5, Bedroom 3, Bedroom 1, Basement, Bathroom 1, Bedroom 4
    Bedrooms
    5
    Bathrooms
    2
    APN
    0500-054-00-01-00-047-000
    Parking features
    Garage, Driveway
    Interior features
    First Floor Bedroom, First Floor Full Bath, Ceiling Fan(s), Chefs Kitchen, Crown Molding, Eat-in Kitchen, Formal Dining, High Ceilings, Recessed Lighting, Washer/Dryer Hookup
    Basement
    Full
    Size
    2,416 SF
    Lot size
    0.38 Acres

    Utilities

    Utilities
    Cable Available
    Sewer type
    Cesspool
    Heating system
    Oil
    Water source
    Public

    Building Details

    Year built
    1966
    Number of units
    2
    Flooring type
    Carpet, Hardwood, Tile - Ceramic
    Building materials
    Frame

    We can help!

    Listing Contact
    Bryan Karp

    Coldwell Banker American Homes (800) 270-6318

    Listing agent Bryan J. Karp CBR

    Listing date Jan 22, 2026

    MLS# 951687 Listing URL

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

    Learn more

    Property Insight Report

    Overview

    Hauppauge Legal Two-Family Duplex

    This legal two-family duplex is located in the Hauppauge School District. The approximately 2,416 sq ft mid-block duplex on a cul-de-sac features an expanded oversized blacktop driveway providing ample off-street parking and two separate private entrances. The first-floor unit, approximately 1,216 sq ft, includes three bedrooms, hardwood floors, a living room, a dining room, and a chef's kitchen with white cabinets, white appliances, a center island, and extensive cabinet and counter space. It also features a hallway bath with a tub/shower and white vanity, plus access to a partially finished full basement with tile flooring, an additional full bathroom with a stand-up shower, and a separate outside entrance. The second-floor unit, approximately 1,200 sq ft, features hardwood floors, fresh paint, large bedrooms with ceiling fans, abundant closet space, formal living and dining rooms, and an updated spa-like hallway bath with a glass tub and shower. The kitchen includes white cabinets, tile backsplash, and ample cabinet and counter space, along with custom molding throughout. The roof was replaced approximately five years ago. The property is heated by one oil-fired boiler, and the landlord currently pays for heat, water, and yard maintenance. Both units include separate outdoor patio space, a portion of a garage bay, and access to an attached storage shed. Tenants are in place through July 1, with rents at $2,400/month for the first-floor unit and $2,300/month for the second-floor unit, with tenants paying electric.
    Property Profile Insight Report Location Intelligence

    Current Use by Public Records

    Duplexes

    Suggested Use

    Realty agency Restaurant Law Firm Spa & Massage Dental Office Hair Salon Nail Salon Building Supply Clothing Store Auto Repair Shop

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

    Location Insight

    • Map
    • Local Demand
    City
    Hauppauge
    County
    Suffolk
    State
    New York
    Longitude
    -73.212797
    Latitude
    40.804179

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    FAQs

    What type of property is this?
    Duplex - Legal two-family duplex in Hauppauge School District with value-add opportunity.
    Where is this duplex located?
    The property is located at 11 Marlo Ln Hauppauge, NY.
    What is the asking price?
    The asking price for this property is $799,999.
    What are key features of this property?
    This property features: - Rare legal two-family duplex in the desirable Hauppauge School District.; - Two separate units, each with chef's kitchens, hardwood floors, and private outdoor patio space.; - Significant value-add opportunity with below-market rents ($2,400/$2,300) and tenants in place.
    (631) 759-5277
    Request Owner's contact information
    11 Marlo Ln Hauppauge, NY 11788
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    Hauppauge, NY 11788
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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
    11 Marlo Ln Hauppauge, NY 11788
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    We can help!
    Listing Contact
    Bryan Karp
    (631) 759-5277
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