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    Under/Over Duplex with Unfinished Basement Title is generated by Realmo AI

    300 Watson Ave, Plainfield, NJ 07062

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    New
    For Sale
    $579,999

    2-Two Story, Under/Over, Multi-Family - Plainfield City, NJ

    Lot size:
    0.13 Acres
    Added:
    Jun 3, 2026
    Days on Market:
    2
    Last Refresh:
    Jun 4 at 11:06 am

    Property Features for 300 Watson Ave

    General Information

    Property type
    Residential Multi Family
    Property subtype
    Other
    Bedrooms
    4
    Bathrooms
    2
    Rooms
    Basement, Bathroom 1, Bathroom 2, Bedroom 1, Bedroom 2, Bedroom 3, Bedroom 4, Dining Room, Kitchen, Utility Room
    Parking
    4
    Patio and Porch features
    Patio
    Interior features
    Carbon Monoxide Detector, Fire Extinguisher, Smoke Detector, Wood Floors
    Exterior features
    Patio, Storm Door(s)
    Fireplace
    1
    Basement Y/N
    1
    Standard status
    Active
    Lot size
    0.13 Acres

    Taxes and HOA fees

    Tax Year
    2025
    Tax Annual Amount
    11594

    Utilities

    Heating system
    Fireplace(s)

    Building Details

    Year built
    1960
    Number of units
    2
    Building materials
    Vinyl Siding
    Roof type
    Asphalt, Shingle
    Architectural style
    Other

    We can help!

    Listing Contact
    FILIBERTO RAMOS

    Listing agent FILIBERTO RAMOS

    Listing office KELLER WILLIAMS VILLAGE SQUARE 74 GODWIN AVENUE, Ridgewood, NJ

    Listing date Jun 3, 2026

    MLS# 4031870 Listing URL

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

    HighLights

    • Two‑family home on a prominent corner lot with two 2‑bedroom, 1 full‑bath units
    • Full unfinished basement with added storage and potential for additional uses
    • Detached 2‑car garage for parking and convenience
    • Wood floors and fireplace(s); includes carbon monoxide detector and smoke detector
    • Patio and storm door(s); vinyl siding and asphalt shingle roof
    • Year built 1960; rooms include kitchen, dining room, four bedrooms total, and two bathrooms

    Overview

    This well-maintained two-family home is configured as an under/over duplex with two spacious, two-story units. Each unit offers 2 bedrooms and 1 full bathroom, making the layout straightforward for both long-term renters and owner-occupants. A full unfinished basement provides additional storage space and offers flexibility for future use. The property also includes a detached 2-car garage, adding practical convenience for residents.

    Located on the East Side of Plainfield on a prominent corner lot at 300 Watson Ave, the home benefits from the privacy and natural light that often come with corner positioning. The listing notes convenient proximity to schools, parks, shopping, dining, and major transportation routes, supporting day-to-day access for occupants.

    For investors, the property’s two separate units provide income-producing flexibility, while the under/over arrangement can also work well for an owner-occupant who prefers to live in one unit and rent the other. The combination of a well-kept exterior, a full unfinished basement, and an included detached garage makes the home a workable base for customization, should the next owner choose to update or expand over time.
    Property Profile Location Intelligence

    Current Use by Public Records

    Duplexes

    Suggested Use

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

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

    Location Insight

    • Map
    • Local Demand
    City
    Plainfield
    County
    Somerset
    State
    New Jersey
    Longitude
    -74.40535
    Latitude
    40.63148

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    FAQs

    What type of property is this?
    Duplex - Two-unit, two-story duplex with 2 bedrooms and 1 full bath per unit and an unfinished basement for storage.
    Where is this duplex located?
    The property is located at 300 Watson Ave Plainfield, NJ.
    What is the asking price?
    The asking price for this property is $579,999.
    What are key features of this property?
    This property features: Two‑family home on a prominent corner lot with two 2‑bedroom, 1 full‑bath units; Full unfinished basement with added storage and potential for additional uses; Detached 2‑car garage for parking and convenience
    (201) 445-4300
    We can help!
    Listing Contact
    FILIBERTO RAMOS
    Real Estate License ID: 1220591
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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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    300 Watson Ave, Plainfield City, NJ 07062-1632
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