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    143 N Main St Concord, NH 3301

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    For Lease
    $25 SF/Yr

    Multiple office suites available in Concord's Central Business District.

    Type:Office
    Property size:
    41,316 SF
    Added:
    Jan 27, 2026
    Days on Market:
    64
    Last Refresh:
    Mar 25 at 11:59 pm

    Property Features for 143 N Main St

    General Information

    Standard status
    Active
    Size
    41,316 SF
    Property subtype
    Office

    Building Details

    Year Built
    1975

    Spaces For Lease

    at 143 N Main St Contact us

    We can help!

    Listing Contact
    Dave Tanguay
    Dave Tanguay

    Listing agent Dave Tanguay License #NH #077077

    Listing office Sperry - Commercial Realty Associates

    Listing date Jan 27, 2026

    Source Sperrycga

    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 Sperry - Commercial Realty Associates

    Overview

    Concord Office Suites For Rent

    Multiple office suites are available for rent in a well-located office building situated in Concord’s Central Business District. The location is within walking distance of downtown retail, restaurants, and the New Hampshire State House. Convenient access to I-93 is provided, located just one block away. The building is fully sprinklered with a wet system and equipped with a fire alarm system. A 15% common area factor has been applied to the suites' square footage. Common area restrooms are provided. Lease rates are gross lease rates inclusive of heating, cooling, and electricity. The area surrounding the property offers access to a vibrant business community and a host of amenities. Professionals can explore eclectic dining options, boutique shopping, galleries, and cultural attractions. The New Hampshire State House and the Capitol Center for the Arts are nearby. The location also provides convenient access to major highways for easy commuting, while nearby parks and scenic trails offer an ideal escape for outdoor enthusiasts. This dynamic area is suitable for an office or office building tenant looking to thrive in an energetic and diverse business environment. The property size is 41316 square feet.
    Location Intelligence

    Current Use by Public Records

    Paola Bayne - TD ... Financial Advisor Leone, McDonnell & Roberts, ... Accounting Firm TD Wealth Financial Advisor Alan Labrie - TD ... Financial Advisor

    Suggested Use

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

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

    Location Insight

    • Map
    • Local Demand
    City
    Concord
    County
    Merrimack
    State
    New Hampshire
    Longitude
    -71.5377
    Latitude
    43.2091

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    FAQs

    What type of property is this?
    Office units - Multiple office suites available in Concord's Central Business District.
    Where is this office units located?
    The property is located at 143 N Main St Concord, NH.
    What is the lease rate?
    The lease rate is $25 SF/Yr.
    What are key features of this property?
    This property features: Prime location in Concord's Central Business District, near downtown retail, restaurants, and the New Hampshire State House.; Convenient access to I‑93 (one block away).; Gross lease rates inclusive of heating, cooling, and electricity.
    (603) 674-1617
    We can help!
    Listing Contact
    Dave Tanguay
    Dave Tanguay
    Real Estate License ID: NH #077077
    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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