Sign Up Successful!
You now have access to more from Realmo!
Property Lookup
    Property Lookup
    • 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
    Property profile & analytics

    459 Islington St Portsmouth, NH 03801-4291

    • Warehouses
    • 13,444 SF
    • 0.54 lot acres
    OFF-MARKET
    Value Estimations
    Cap Rate Potential
    Location Intelligence
    Property ID
    US58-0528938
    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

    • Liars Bench Beer Co / Production Facility / Brewery & Distillery
    • Washburn Plumbing & Heating / Plumbing Service / Building Supply
    • Murray's Supply / Plumbing Service / Building Supply
    • Murray's Plumbing & Heating Supply / Plumbing Service / Building Supply

    Property Details for 459 Islington St

    Year built
    1880
    Construction
    FRAME
    Lot size
    0.54 lot acres
    Property size
    13,444 SF
    Zone code
    CD4-L2
    Property type
    Warehouses
    APN
    PRSM M:0157 B:0007 L:
    APU
    PRSMM0157B0007L

    Value Estimations

    based on Realmo’s proprietary methodology

    • AI approach

    • CAP approach

    • Comparable approach

    • Alternative Use

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

    Location Insight

    • Map
    • Local Demand
    City
    Portsmouth
    County
    Rockingham
    State
    New Hampshire
    Longitude
    -70.7689
    Latitude
    43.0725
    CBSA code
    14460
    CBSA name
    BOSTON-CAMBRIDGE-QUINCY, MA-NH 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
    2023
    $18,640
    $549,300
    $606,300
    $1,155,600
    -
    $0.00
    $0.00
    $0.00

    Comparable in this City

    • Value Estimation by Request
      2.02 Acres

      Shattuck Way

      BULK STORAGE, TANKS • 2.02 Acres
      Shattuck Way, Newington, NH 03801
      View Details
    • Value Estimation
      $2,365,000
      196,424 SF

      1 Highliner Ave

      WAREHOUSE, STORAGE • 196,424 SF
      1 Highliner Ave, Portsmouth, NH 03801-4146
      View Details
    • Value Estimation
      $910,000
      38,994 SF

      158 Shattuck Way

      WAREHOUSE, STORAGE • 38,994 SF
      158 Shattuck Way, Newington, NH 03801-7868
      View Details
    • Value Estimation
      $510,000
      24,112 SF

      50 Campus Dr

      WAREHOUSE, STORAGE • 24,112 SF
      50 Campus Dr, Portsmouth, NH 03801-5685
      View Details
    • Value Estimation
      $780,000
      5,902 SF

      225 Greenleaf Ave

      WAREHOUSE, STORAGE • 5,902 SF
      225 Greenleaf Ave, Portsmouth, NH 03801-5326
      View Details
    • Value Estimation
      $540,000
      25,376 SF

      115 Heritage Ave

      WAREHOUSE, STORAGE • 25,376 SF
      115 Heritage Ave, Portsmouth, NH 03801-5610
      View Details

    Similar Nearby for Sale

    • $4,500,000
      4.50 Acres

      Prime Portsmouth Commercial Land Opportunity

      4.5-acre commercial property in Portsmouth's Gateway Zone with highway access.
      3600 Lafayette St, Portsmouth, NH 03801
      View Details
    • $300,000

      Portsmouth Office Condo - Prime Location

      Downtown Portsmouth office, renovated 2024.
      118 Maplewood Ave, Portsmouth, NH 03801
      View Details
    • Contact for pricing
      6,200 SF

      Portsmouth Retail & Office Space

      Prime Portsmouth location, flexible lease options.
      150 Mirona Road Ext, Portsmouth, NH 03801
      View Details
    • $1,200,000

      Downtown Portsmouth Office Suites

      Move-in-ready office suites in a vibrant downtown location.
      8 210, Portsmouth, NH 03801
      View Details
    • $1,000,000
      0.41 Acres

      Waterfront Lot Near Downtown Portsmouth

      Waterfront mixed-use property near downtown Portsmouth, offering versatile development opportunities.
      98 Cornwall St, Portsmouth, NH 03801
      View Details
    • $1,200,000
      3,186 SF

      Downtown Portsmouth Office Suites

      Recently renovated office suites in vibrant downtown Portsmouth.
      8 Vaughan St, Portsmouth, NH 03801
      View Details

    Similar Nearby for Lease

    • $11 SF/Yr
      22,000 SF

      Industrial Building with Outdoor Storage

      22,000 SF industrial building with convenient highway access.
      100 West Rd, Portsmouth, NH 03801
      View Details
    • $14 SF/Yr
      3,000 SF

      Portsmouth Industrial Park Warehouse Space

      3,000± SF warehouse/distribution space in Portsmouth Industrial Park.
      124 Heritage Ave, Portsmouth, NH 03801
      View Details
    • $9 SF/Yr
      63,161 SF

      Newington Warehouse Space Available

      63,161 SF warehouse space for lease in Newington, NH.
      25 Nimble Hill Rd, Newington, NH 03801
      View Details
    • $18 SF/Yr
      1 SF

      Newington, NH Industrial Building

      46,000 SF Manufacturing/Warehouse Space
      0 Newington Nh, Newington, NH 03801
      View Details
    • $11 SF/Yr
      20,167 SF

      Warehouse/Flex/Manufacturing Space Available

      20,167 SF warehouse/flex/manufacturing space with HVAC and office area.
      230 Corporate Dr, Portsmouth, NH 03801
      View Details
    • $15 SF/Yr
      75,000 SF

      High-Bay Warehouse/Distribution Space Available

      State-of-the-art, build-to-suit, high-bay warehouse/distribution space for lease.
      375 Banfield Rd, Portsmouth, NH 03801
      View Details
    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.
    459 Islington St
    Portsmouth, NH 03801-4291
    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.