Add Listing
    For Lease
    • For Sale
    • For Lease
    • Recently Sold
    • Property Lookup
    • Brokers
    AI Search
    Back to Search
    The Largest CRE Database in the US with Over 1 Million Listings

    320 Carleton Ave Central Islip, NY 11722

    View on Map
    Claim this Listing
    New
    Loading data...
    Loading data...
    Loading data...
    For Lease
    Contact for pricing

    Office spaces available for lease in Central Islip, NY.

    Type:office
    Property size:
    3,118 SF
    Added:
    Apr 15, 2026
    Days on Market:
    4
    Last Refresh:
    Apr 14 at 8:18 pm

    Property Features for 320 Carleton Ave

    General Information

    Standard status
    Active
    Size
    3,118 SF
    Property subtype
    office

    Spaces For Lease

    at 320 Carleton Ave Contact us

    We can help!

    Listing Contact
    Ray Ruiz
    Ray Ruiz

    Listing agent Ray Ruiz License #10301215926

    Listing office Melville

    Listing date Apr 15, 2026

    Source Property.jll

    Displayed information is deemed reliable but is not guaranteed and should be independently verified.

    All listing content including descriptions, pricing, images are the copyrighted material of Melville

    Overview

    Office Space in Central Islip

    Office space is available for lease at Courthouse Corporate Center, located at 320 Carleton Ave, Central Islip, New York 11722. The available square footage ranges from 1,276 to 9,298 square feet. The property size is 3,118 square feet. For further details, please make an inquiry.
    Location Intelligence

    Current Use by Public Records

    Law Office of Anthony ... Courthouse Margaret Trainor Law Firm Law Offices of Harold ... Law Firm James D'Angelo Esq. Law Firm Silverberg P.C. Law Firm

    Suggested Use

    Restaurant Real Estate Agency Law Firm Building Supply Spa & Massage Center Dental Office Big Box & Wholesale Store Auto Repair Shop Hair Salon Nail Salon

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

    Location Insight

    • Map
    • Local Demand
    City
    Central Islip
    County
    Suffolk
    State
    New York
    Longitude
    -73.199944
    Latitude
    40.780582

    Nearby Similar for Lease

    • Contact for pricing

      Central Islip Commercial Office Space

      Professional building with office and finished basement available for rent.
      109 Carleton, Central Islip, NY 11722
      View Details
    • Contact for pricing

      Central Islip Commercial Lease Opportunity

      Professional building with flexible space in Central Islip, NY.
      109 Carleton, Central Islip, NY 11722
      View Details
    • $25/mo

      Retail Space Near Cherry Valley

      Retail space available near Cherry Valley Supermarket with ample parking.
      54-58 E Suffolk Ave, Central Islip, NY
      View Details
    • Contact for pricing

      Retail Space Near Ballpark

      Retail space available near Fairfield Properties Ballpark.
      80-160 N Research Pl, Central Islip, NY
      View Details
    • $28/mo

      Central Islip Warehouse Space

      35,000 square foot warehouse space available for lease.
      39 Windsor Pl, Central Islip, NY
      View Details
    • Contact for pricing

      Industrial Space with Large Yard

      Industrial space featuring warehouse, office, and large fenced yard.
      43 Windsor Pl, Central Islip, NY
      View Details
    • Contact for pricing

      Retail Space in Central Islip

      Retail space available in a busy Central Islip shopping center.
      26-30 N Research Pl, Central Islip, NY
      View Details
    • $25/mo

      Retail Space in Central Islip

      Retail space available in a busy Central Islip location.
      2-32 Wheeler Rd, Central Islip, NY
      View Details
    • Contact for pricing

      Modern Office Space Available

      5,246 SF office space with modern amenities for rent.
      320 Carleton Ave, Central Islip, NY
      View Details
    • Contact for pricing

      Office Space in Central Islip

      Office space available for lease in Central Islip, NY.
      320 Carleton Ave, Central Islip, NY 11722
      View Details

    FAQs

    What type of property is this?
    Office units - Office spaces available for lease in Central Islip, NY.
    Where is this office units located?
    The property is located at 320 Carleton Ave Central Islip, NY.
    What are key features of this property?
    This property features: Office space available for lease in Courthouse Corporate Center.; Located at 320 Carleton Ave, Central Islip, New York 11722.; Available square footage ranges from 1,276 to 9,298 SF.
    (631) 962-2890
    We can help!
    Listing Contact
    Ray Ruiz
    Ray Ruiz
    Real Estate License ID: 10301215926
    Learn More
    Request Owner's contact information
    Message sent successfully
    Error
    If you are the owner or broker of this property and would like to edit or remove this listing please send a message to web site administrator.
    Message sent successfully
    Error
    Email to Your Friends
    Link copied to clipboard
    Separate multiple addresses with a comma
    Message sent successfully
    Error

    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
    Thanks! Your message was sent.
    Error! Your message wasn't sent.
    Please enter your name
    Please enter email
    Please enter the email in the correct format
    Please enter phone
    Please enter the number in the correct format
    Please enter message
    Thank You

    You are Unsubscribed From Notifications

    Google sign-in failed. Please try again or use another login method.
    Sign Up Successful!
    You now have access to more from Realmo!