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

    185 Cottage St Portsmouth, NH 03801-4108

    • Showrooms
    • 6,240 SF
    • 0.89 lot acres
    OFF-MARKET
    Value Estimations
    $775,000
    Show details
    Cap Rate Potential
    Location Intelligence
    Property ID
    US58-0531855
    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

    • New England Oral Medicine / Dental Office
    • Susan Dumore, PT, ATC / Medical Clinic
    • Amy Rosania / Dental Office
    • Susan Dumore / Medical Clinic
    • Dr. David Rosania, DMD / Dental Office

    Property Details for 185 Cottage St

    Year built
    2019
    Construction
    FRAME
    Lot size
    0.89 lot acres
    Property size
    6,240 SF
    Zone code
    GRA
    Property type
    Showrooms
    APN
    PRSM M:0174 B:0014 L:
    APU
    PRSMM0174B0014L

    Value Estimations

    based on Realmo’s proprietary methodology

    • CAP approach

      CAP Return
      Estimation
      6%
      $970,000
      6.5%
      $895,000
      7%
      $830,000

    • Comparable approach

      Method
      Estimation
      AI Estimate
      $1,039,000
      Market price range: $444k - $1.68M

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

    Location Insight

    • Map
    • Local Demand
    City
    Portsmouth
    County
    Rockingham
    State
    New Hampshire
    Longitude
    -70.7787
    Latitude
    43.0707
    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
    $27,689
    $491,300
    $1,225,300
    $1,716,600
    -
    $0.00
    $0.00
    $0.00

    Comparable in this City

    • Value Estimation
      $1,305,000
      12,568 SF

      605 Lafayette Rd

      SHOW ROOM, WAREHOUSE • 12,568 SF
      605 Lafayette Rd, Portsmouth, NH 03801-5406
      View Details
    • Value Estimation
      $655,000
      4,050 SF

      105 Bartlett St

      SHOW ROOM, WAREHOUSE • 4,050 SF
      105 Bartlett St, Portsmouth, NH 03801-7608
      View Details
    • Value Estimation
      $3,495,000
      27,180 SF

      3611 Lafayette Rd

      SHOW ROOM, WAREHOUSE • 27,180 SF
      3611 Lafayette Rd, Portsmouth, NH 03801-6008
      View Details
    • Value Estimation by Request
      2,554 SF

      54 Pray St

      SHOW ROOM, WAREHOUSE • 2,554 SF
      54 Pray St, Portsmouth, NH 03801-5226
      View Details
    • Value Estimation
      $1,670,000
      11,579 SF

      100 Shattuck Way

      SHOW ROOM, WAREHOUSE • 11,579 SF
      100 Shattuck Way, Newington, NH 03801-8004
      View Details
    • Value Estimation
      $4,310,000
      15,544 SF

      104 Congress St

      SHOW ROOM, WAREHOUSE • 15,544 SF
      104 Congress St, Portsmouth, NH 03801-4078
      View Details

    Similar Nearby for Sale

    • $3,600,000
      0.11 Acres

      Historic Portsmouth Mixed-Use Gem

      Mixed-use property with commercial space and residential apartments in Portsmouth.
      56 Market St, Portsmouth, NH 03801
      View Details
    • $2,400,000

      Historic Mixed-Use Portsmouth Gem

      Historic Portsmouth mixed-use property with commercial and residential spaces.
      48 Market St, Portsmouth, NH 03801
      View Details
    • $715,000
      994 SF

      Leased Retail Condo in Portsmouth

      Fully leased retail condo in downtown Portsmouth's vibrant commercial district.
      135 Market St, Portsmouth, NH 03801
      View Details
    • $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
    • $595,000
      0.11 Acres

      Prime Portsmouth Commercial Building For Sale

      Versatile 1,470 SF building in high-traffic Portsmouth location.
      1290 Woodbury Ave, Portsmouth, NH 03801
      View Details
    • $5,400,000
      0.20 Acres

      Mixed-Use Development in Portsmouth, NH

      Mixed-use development with retail and luxury residences in Portsmouth.
      266 State St, Portsmouth, NH 03801
      View Details

    Similar Nearby for Lease

    • Contact for pricing
      11,145 SF

      Retail Space on Woodbury Avenue

      Highly visible retail space with high traffic counts.
      1303 Woodbury Ave, Portsmouth, NH 03801
      View Details
    • $23 SF/Yr
      3,237 SF

      Prime Downtown Retail Space Available

      Highly visible Class A retail space near Market Square.
      10 Pleasant St, Portsmouth, NH 03801
      View Details
    • Contact for pricing
      174,240 SF

      Prime Portsmouth Commercial Space Available

      High-traffic location suitable for retail, medical, restaurant, or office use.
      750 Lafayette Rd, Portsmouth, NH 03801
      View Details
    • Contact for pricing

      Retail/Office Space in Portsmouth

      Updated retail/office space with patio in revitalized North End.
      33 Deer St, Portsmouth, NH 03801
      View Details
    • Contact for pricing
      4,792 SF

      Prime Portsmouth Commercial Space Available

      1,470 SF office/retail space in high-traffic Portsmouth location.
      1290 Woodbury Ave, Portsmouth, NH 03801
      View Details
    • $16 SF/Yr
      4,100 SF

      Retail/Office Space For Lease

      Retail/office space with ample parking and convenient highway access.
      72 Mirona 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.
    185 Cottage St
    Portsmouth, NH 03801-4108
    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.