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    800 Islington St Units 10A & 10B Portsmouth, NH 3801

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    For Lease
    $22 SF/Yr

    Retail and office spaces available in Portsmouth's West End.

    Type:Commercial
    Property size:
    10,660 SF
    Added:
    Apr 24, 2026
    Days on Market:
    5
    Last Refresh:
    Apr 24 at 6:02 pm

    Property Features for 800 Islington St Units 10A & 10B

    General Information

    Standard status
    Active
    Size
    10,660 SF
    Property subtype
    Commercial

    We can help!

    Listing Contact
    Abby Bachman

    Listing agent Abby Bachman

    Listing office Portsmouth

    Listing date Apr 24, 2026

    Source Elliman

    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 Portsmouth

    Overview

    Retail Spaces in Hannaford-Anchored Plaza

    Plaza 800 is a retail center anchored by Hannaford, featuring a tenant mix that includes Ohana Kitchen, LoveWell Veterinary Services, Portsmouth Pizza Factory, Blaze Yoga & Fitness, Sherwin-Williams, and NH Liquor & Wine Outlet. Unit 10A offers 2,135 square feet of retail space, previously Dogland, with expansive windows and an open layout. Unit 10B provides 2,465 square feet of office/retail space, formerly occupied by Sylvan Learning, featuring two private offices, a large conference room, and an open collaborative workspace. Units 10A and 10B can be combined to create a 4,600 square foot space. Ample signage is available throughout the plaza, including a pylon sign facing Islington Street. The property is located in Portsmouth’s West End, minutes from downtown, with access to I-95, Route 1, and Route 16. The location has a Walk Score of 82, indicating it is very walkable, and a Bike Score of 56, indicating it is bikeable.
    Location Intelligence

    Current Use by Public Records

    Coinstar Kiosk | Bitcoin ... Atm Cardtronics Atm Coinhub Bitcoin ATM ... Atm Cafe Espresso Restaurant Blaze Yoga & Fitness Gym & Fitness Center

    Suggested Use

    Restaurant Law Firm Real Estate Agency Spa & Massage Center Dental Office Hair Salon Nail Salon Building Supply Daycare Center Accounting Firm

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

    Similar Places Nearby

    • Plaza 800 — 800 Islington St, Portsmouth, NH 03801
    • Vaughan Mall — 1 Vaughan Mall, Portsmouth, NH 03801
    • Gallagher's Place — 801 Islington St, Portsmouth, NH 03801
    • Coinstar Kiosk | Bitcoin ATM — Hannaford Bros, 800 Islington St, Portsmouth, NH 03801

    Location Insight

    • Map
    • Local Demand
    City
    Portsmouth
    County
    Strafford
    State
    New Hampshire
    Longitude
    -70.7713101
    Latitude
    43.0682324

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    FAQs

    What type of property is this?
    Shopping center - Retail and office spaces available in Portsmouth's West End.
    Where is this shopping center located?
    The property is located at 800 Islington St Units 10A & 10B Portsmouth, NH.
    What is the lease rate?
    The lease rate is $22 SF/Yr.
    What are key features of this property?
    This property features: High visibility endcap unit (10,660± SF) in Hannaford‑anchored Plaza 800.; Located in Portsmouth's vibrant West End, minutes from downtown.; Strong tenant mix including Hannaford, Ohana Kitchen, and NH Liquor & Wine Outlet.
    (724) 553-8720
    We can help!
    Listing Contact
    Abby Bachman
    Learn More
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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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