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    Functional Office Space in Belleville Title is generated by Realmo AI

    335 UNION AVE, Belleville, NJ 07109

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    Claim this Listing
    For Lease
    $3,400 /Mo

    Office - Belleville, NJ

    Type:Office
    Added:
    Mar 2, 2026
    Days on Market:
    68
    Last Refresh:
    May 9 at 1:06 am

    Property Features for 335 UNION AVE

    General Information

    Property type
    Commercial Lease
    Property subtype
    Office
    Standard status
    Active

    Taxes and HOA fees

    Tax Annual Amount
    12944

    Utilities

    Heating system
    Natural Gas

    Building Details

    Architectural style
    Other

    We can help!

    Listing Contact
    CARLOS JESUS

    Listing agent CARLOS JESUS License #9798051

    Listing office EXIT GOLDEN REALTY GROUP 50 MIDLAND AVE, NORTH ARLINGTON, NJ

    Listing date Mar 2, 2026

    MLS# 260003558 Listing URL

    Copyright © 2026 Realty MLS, 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

    • Highly visible location directly across from a public school.
    • Two‑level layout provides flexibility for separate business functions.
    • Bright space with large windows and excellent natural light.
    • Convenient access to major roadways and public transportation.
    • Ideal for a variety of professional office uses (accountants, attorneys, consultants, etc.).
    • Natural Gas Heating.

    Overview

    Located at 335 Union Ave in Belleville, NJ, this office space is well-situated and highly functional, making it ideal for professional use. The property is conveniently located directly across from a public school, benefiting from strong daily activity and visibility. The space is thoughtfully designed over two distinct levels, allowing flexibility to operate two completely separate business functions or departments, or to use one level independently from the other. This bright and versatile unit features a practical layout that can accommodate private offices, consultation rooms, or an open workspace design. Large windows provide excellent natural light, creating a comfortable and productive environment for both staff and clients. Situated along a busy corridor, the property offers strong exposure and easy access to major roadways, public transportation, and surrounding residential neighborhoods. It is suitable for accountants, attorneys, consultants, medical or wellness professionals, and other office-based businesses. The property is located in Essex County, New Jersey, with the postal code 07109.
    Property Profile Insight Report Location Intelligence

    Current Use by Public Records

    Office Units

    Suggested Use

    Law Firm Restaurant Real Estate Agency Spa & Massage Center Dental Office Hair Salon Nail Salon Food Market Grocery & Convenience Store Gym & Fitness Center

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

    Location Insight

    • Map
    • Local Demand
    City
    Belleville
    County
    Essex
    State
    New Jersey
    Longitude
    -74.156278
    Latitude
    40.7952469

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    FAQs

    What type of property is this?
    Office units - Well-located office space ideal for professional use in Belleville.
    Where is this office units located?
    The property is located at 335 UNION AVE Belleville, NJ.
    What is the lease rate?
    The lease rate is $3,400 /Mo.
    What are key features of this property?
    This property features: Highly visible location directly across from a public school.; Two‑level layout provides flexibility for separate business functions.; Bright space with large windows and excellent natural light.
    (201) 997-4425
    We can help!
    Listing Contact
    CARLOS JESUS
    Real Estate License ID: 9798051
    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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