Add Listing
    For Lease
    • For Sale
    • For Lease
    • Recently Sold
    • Property Lookup
    • Brokers
    Back to Search
    Portsmouth Office Space For Rent Title is generated by Realmo AI

    1000 Market St Bldg 2, Portsmouth, NH

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

    Professional office space available in a premier Portsmouth building.

    Type:OFFICE
    Property size:
    5,100 SF
    Lot size:
    17.85 Acres
    Added:
    Nov 24, 2025
    Days on Market:
    179
    Last Refresh:
    Apr 5 at 8:17 pm

    Property Features for 1000 Market St Bldg 2

    General Information

    Standard status
    Active
    Size
    5,100 SF
    Lot size
    17.85 Acres
    Property subtype
    OFFICE

    We can help!

    Listing Contact
    Christian Stallkamp
    Christian Stallkamp

    Listing agent Christian Stallkamp License #064644

    Listing office The Boulos Company

    Listing date Nov 24, 2025

    Source Moodyscre

    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 The Boulos Company

    HighLights

    • Premier office building in Portsmouth.
    • 5,100± SF of professional office space.
    • Easily accessible location just off Exit 7 of I‑95.
    • Parking included in the rent.
    • Benefit from large private offices and conference room.
    • Newly upgraded interior.

    Overview

    This offering consists of 5,100 square feet of professional office space located in one of Portsmouth’s premier office buildings. The space features large private offices, a conference room, and newly upgraded interior. The property is located just off Exit 7 of I-95, providing easy access to all major transportation routes and Downtown Portsmouth. The space is located on the first floor. Parking is included in the rent, and the space includes private restrooms. The lease rate is $25 per square foot.
    Property Profile Insight Report Location Intelligence

    Current Use by Public Records

    ICC Commonwealth Construction Company 1000 Market Street ... Parking Lot & Garage The Bistro – Eat. Drink. ... Restaurant RMC Research Corporation Research Institute OPL Charities Charitable Organization

    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
    Portsmouth
    County
    Strafford
    State
    New Hampshire
    Longitude
    -70.7753
    Latitude
    43.0842

    Nearby Similar for Lease

    • Contact for pricing

      Prime Retail Space on Route 1

      7,000 SF retail space in high-visibility Portsmouth location.
      2299 Lafayette Road, Portsmouth, NH 03801
      View Details
    • Contact for pricing
      1,714 SF

      Retail/Office Space in Portsmouth, NH

      Highly visible retail or office space near Market Square.
      21 Daniel Street, Portsmouth, NH 03801
      View Details
    • Contact for pricing

      Shared Office Space in Portsmouth

      Shared office space with central location and highway access.
      1 Greenleaf Woods Drive, Portsmouth, NH 03801
      View Details
    • Contact for pricing

      Downtown Portsmouth Modern Office Space

      Modern office space in downtown Portsmouth with parking and amenities.
      299 Hanover Street, Portsmouth, NH 03801
      View Details
    • Contact for pricing

      Shared Office Space in Portsmouth

      Shared office space with central location and great proximity.
      1 Greenleaf Woods Drive, Portsmouth, NH 03801
      View Details
    • $10 SF/Yr
      3,921 SF

      Portsmouth Office Space For Lease

      Versatile office space in Portsmouth, accessible from city or bypass.
      500 Maplewood Ave Unit A, Portsmouth, NH 03801
      View Details
    • $15 SF/Yr
      8,644 SF

      Downtown Portsmouth Office Suites Available

      Office suites for lease in downtown Portsmouth, NH.
      501 Islington St Suite 3, Portsmouth, NH 03801
      View Details
    • $22 SF/Yr
      10,660 SF

      Retail Spaces in Hannaford-Anchored Plaza

      Retail and office spaces available in Portsmouth's West End.
      800 Islington St Units 10A & 10B, Portsmouth, NH 03801
      View Details
    • $19 SF/Yr
      2,300 SF

      West End Office Space Available

      Second-floor office space in Portsmouth's West End.
      801 Islington St Unit 33, Portsmouth, NH 03801
      View Details
    • Contact for pricing

      Downtown Portsmouth Office For Lease

      Office space for lease in downtown Portsmouth, available immediately.
      159 Middle Street, Portsmouth, NH 03801
      View Details
    • Sponsored
      $129-$8,276/Mo
      11-1,292 SF

      Portsmouth

      170 Commerce Way, Unit 200, Portsmouth, NH 03801
      View Details
    • Contact for pricing

      Retail Space in Portsmouth's West End

      Retail space in a dynamic, growing Portsmouth commercial district.
      821 Islington Street, Portsmouth, NH 03801
      View Details

    FAQs

    What type of property is this?
    Office units - Professional office space available in a premier Portsmouth building.
    Where is this office units located?
    The property is located at 1000 Market St Bldg 2 Portsmouth, NH.
    What are key features of this property?
    This property features: Premier office building in Portsmouth.; 5,100± SF of professional office space.; Easily accessible location just off Exit 7 of I‑95.
    (603) 427-1333 Call to check price and availability
    We can help!
    Contact for Pricing
    Please call us for current price
    and status of this listing Christian Stallkamp
    Christian Stallkamp
    Real Estate License ID: 064644
    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

    Thank You for Inquiry
    1000 Market St Bldg 2, Portsmouth, NH
    letter with green check mark
    Check your email
    We sent you the
    agent's contact details. yellow underline
    Can't find it?
    Please check your junk/spam folder.
    Google sign-in failed. Please try again or use another login method.
    Sign Up Successful!
    You now have access to more from Realmo!