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    The Largest CRE Database in the US with Over 1 Million Listings
    Property profile & analytics

    171 Main St South River, NJ 08882

    • Office buildings
    • 8,370 SF
    • 0.30 lot acres
    For Sale
    View listing
    $1,499,900
    Last Sale
    May 12, 2025
    $1,270,000
    Value Estimations
    Cap Rate Potential
    Location Intelligence
    Property ID
    US59-1496975
    The Realmo ID is a unique identifier assigned to every property, incorporating country codes and precise geo-coordinates for 300x300-foot land blocks. It enables standardized data collection and seamless integration of disparate sources such as ownership, tax, title data and physical specifications. By aggregating current and historical records, the Realmo ID powers advanced analytics and delivers deep, verifiable insights for real estate professionals.

    Current Use by Public Records

    • Tabori Steven DMD LLC / Dentist
    • Jersey Drive Driving School / Driving School
    • Travel Clinics of America / Family Practice Physician / Doctor
    • Mackay Marine / Electronics Store
    • Daniel S. Gray, DC / Chiropractor

    Property Details for 171 Main St

    Year built
    1950
    Lot size
    0.30 lot acres
    Property size
    8,370 SF
    Property type
    Office buildings
    APN
    23 00103-0000-00015- 01
    APU
    230010300000001501

    Description

    This exceptional 8,370 square foot office building, situated at 171 Main Street in South River, New Jersey, presents a compelling investment opportunity for both owner-users and investors. The property boasts a convenient location near major roadways including the NJ Turnpike, Route 18, and Route 1, ensuring easy accessibility for employees and clients. Recently renovated common areas and a newer roof enhance the building's appeal. Currently, four of the six suites are leased to long-term tenants, generating consistent rental income. The two vacant suites offer significant potential for owner-occupancy or further value-add opportunities for investors. These vacant spaces are ideally suited for a variety of medical and professional uses, including but not limited to physical therapy, chiropractic services, IT firms, home healthcare providers, legal practices, accounting firms, and contracting businesses. The building sits on a 0.301-square-foot lot and is a single-story structure. The asking price is $1,499,900. This property offers a blend of immediate income generation and future growth potential in a highly desirable location. Contact us today to arrange a viewing and explore this remarkable opportunity.

    Value Estimations

    based on Realmo’s proprietary methodology

    • AI approach

      Method
      Estimation
      Statistic approach
      $1,045,000
      ML approach
      $985,000

    • Comparable approach

      Method
      Estimation
      AI Estimate
      $1,725,000
      Market price range: $1.19M - $2.41M

    Get a detailed, property-specific valuation — fast and free

    Location Insight

    • Map
    • Local Demand
    City
    South River
    County
    Middlesex
    State
    New Jersey
    Longitude
    -74.3857
    Latitude
    40.4473
    CBSA code
    35620
    CBSA name
    NEW YORK-NORTHERN NEW JERSEY-LONG ISLAND, NY-NJ-PA METROPOLITAN STATISTICAL AREA

    Property Tax & Assessments

    Tax date
    Tax Amount
    Assessed Land Value
    Assessed Improvement Value
    Total Assessed Value
    Applied Tax Rate
    Land Market Value
    Improvement Market Value
    Total Market Value
    2022
    $16,107
    $118,800
    $544,600
    $663,400
    -
    $118,800
    $544,600
    $663,400

    Comparable in this City

    • Value Estimation
      $310,000
      3,322 SF

      11 Stephen St

      OFFICE BUILDING • 3,322 SF
      11 Stephen St, South River, NJ 08882-1240
      View Details
    • Value Estimation
      $325,000
      5,084 SF

      23 Maple St

      OFFICE BUILDING • 5,084 SF
      23 Maple St, South River, NJ 08882
      View Details
    • Value Estimation
      $285,000
      945 SF

      17 Main St

      OFFICE BUILDING • 945 SF
      17 Main St, South River, NJ 08882-1498
      View Details
    • Value Estimation
      $325,000
      2,218 SF

      198 Main St

      OFFICE BUILDING • 2,218 SF
      198 Main St, South River, NJ 08882-1561
      View Details
    • Value Estimation
      $255,000
      878 SF

      133 Main St

      OFFICE BUILDING • 878 SF
      133 Main St, South River, NJ 08882-1231
      View Details
    • Value Estimation
      $375,000
      2,084 SF

      26 Elizabeth St

      INDUSTRIAL (GENERAL) • 2,084 SF
      26 Elizabeth St, South River, NJ 08882-1368
      View Details

    Similar Nearby for Sale

    • Contact for pricing
      3,200 SF

      Spacious Office Building on Main

      3200 SqFt office building in prime Main Street location.
      141 Main St, South River, NJ 08882
      View Details
    • $1,499,900
      8,370 SF

      Prime South River Office Building

      8,370 SF Office, Abundant Parking
      171 Main St, South River, NJ 08882
      View Details
    • $169,500
      0.07 Acres

      Buildable Lot Near Main Street

      Vacant lot near Main Street in a redeveloping area.
      15 Henry St, South River, NJ 08882
      View Details
    • $2,650,000
      2 SF

      Development Site Approved For Mixed-Use

      2.04 acre development site approved for multi-story, mixed use.
      85 Prospect St, South River, NJ 08882
      View Details
    • $100,000
      0.11 Acres

      Land in South River, NJ

      Land package offers development or long-term investment potential.
      78 Causeway St, South River, NJ 08882
      View Details
    • Contact for pricing
      750 SF

      Retail Space Near Downtown

      750 SF storefront suitable for retail or restaurant use.
      79 Whitehead Ave, South River, NJ 08882
      View Details

    Similar Nearby for Lease

    • $6 SF/Yr
      4,000 SF

      Prime Main Street Office Building

      Executive Suites, High Visibility Location
      123 Main St, South River, NJ 08882
      View Details
    • $1,270,000

      Industrial Warehouse Space Available

      Industrial warehouse property available for lease.
      171 Main St, South River, NJ 08882
      View Details
    • Contact for pricing
      50,500 SF

      South River Warehouse Space

      50,500 SF warehouse space available for lease.
      5 Brick Plant Rd, South River, NJ 08882
      View Details
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    171 Main St
    South River, NJ 08882
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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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