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    Portsmouth, NH Office Units for Sale

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    Medical Office Condominium
    Updated: Jun 10
    Medical Office Condominium

    330 Borthwick Avenue, Portsmouth, NH 03801

    $550,000
    Medical office condominium in the Jackson Gray Medical Building
    Directly across from Portsmouth Regional Hospital
    On‑site parking with additional accessible parking spaces
    Immediate access to I‑95 and the Portsmouth Rotary
    Located just off U.S. Route 1
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    Renovated Office Condominium Unit
    Updated: Sep 6, 2024
    Renovated Office Condominium Unit

    118 Maplewood Avenue, Portsmouth, NH 03801

    $250,000
    Renovated in 2024 and available for immediate occupancy
    Two well‑proportioned rooms for office and conference uses
    Full bathroom within the unit
    2 assigned on‑site parking spaces
    Adjacent to The North Mill Pond
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    First-Floor Corner Office Suite
    First-Floor Corner Office Suite

    1 Cate St #1A, Portsmouth, NH 03801

    $750,000
    2,420 sqft

    Character-rich workspace with brick walls, metal beams, city views, and on-site parking.

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    First-Floor Corner Office Suite
    First-Floor Corner Office Suite

    1 Cate Street, Portsmouth, NH 03801

    $750,000
    2,420 sqft

    Brick walls and metal beams add architectural character to a quiet workplace.

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    Ground-Floor Retail Condominium
    Ground-Floor Retail Condominium

    53 Green St, Portsmouth, NH 03801

    $1,195,000
    2,828 sqft

    Cold, dark shell offers flexibility for a custom commercial build-out.

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    Single-Unit Office Building
    Single-Unit Office Building

    330 Borthwick Ave Unit 210, Portsmouth, NH 03801

    $550,000
    2,132 sqft

    Single-unit office property offering 2,132 SF for sale.

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    Recently Built Office Units
    Recently Built Office Units

    1-54 Maplewood Ave, Portsmouth, NH 03801

    $3,440,000
    4,862 sqft

    Downtown commercial space includes on-site parking and access to nearby public parking options.

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    Renovated Medical Office Space
    Renovated Medical Office Space

    875 Greenland Rd C-8, Portsmouth, NH 03801

    $499,000
    2,178 sqft

    Updated professional space offers natural light and on-site parking.

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    Renovated Six-Office Condo
    Renovated Six-Office Condo

    101-2 Greenleaf Woods Dr, Portsmouth, NH 03801

    $225,000
    1,418 sqft

    A private kitchenette and a three-quarter bath support day-to-day office use.

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    Renovated Office Condo
    Renovated Office Condo

    2 Greenleaf Woods Drive Unit: 101, Portsmouth, NH 03801

    $225,000
    1,418 sqft

    Glass-fronted private offices, a bath, and kitchenette support a functional workplace layout.

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    Renovated Office Condo Unit
    Renovated Office Condo Unit

    2 Greenleaf Woods Drive Unit: 102, Portsmouth, NH 03801

    $125,000
    720 sqft

    The suite combines private work areas with an open workspace and kitchenette.

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    Downtown Office Condominium Suite
    Downtown Office Condominium Suite

    118 Maplewood Avenue, Unit C-1, Portsmouth, NH 03801

    $415,000
    951 sqft

    Own a functional office condominium with private offices, a conference room, and dedicated on-site parking.

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    Office Condominium with Private Offices
    Office Condominium with Private Offices

    C1-118 Maplewood Ave, Portsmouth, NH 03801

    $415,000
    951 sqft

    Professional suite includes three enclosed offices, a flexible conference room, kitchenette, storage, and a private restroom.

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    Two-Building Flex Industrial Site
    Two-Building Flex Industrial Site

    3601 Lafayette Road, Portsmouth, NH 03801

    $1,300,000
    2,615 sqft 4.50 AC lot

    Two commercial buildings on 4.5 acres include offices and a rear workshop/warehouse with four drive-in doors.

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    Medical Office Condominium Across Hospital
    Medical Office Condominium Across Hospital

    330 Borthwick Ave 210, Portsmouth, NH 03801

    $550,000

    Medical or professional users benefit from on-site parking and immediate access to major area routes.

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    Medical Office Condominium
    Medical Office Condominium

    210-330 Borthwick Ave, Portsmouth, NH 03801

    $550,000

    Condominium office space across from Portsmouth Regional Hospital with accessible on-site parking and convenient regional highway connections.

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    Street-Level Corner Office Unit
    Street-Level Corner Office Unit

    51 Islington St 3, Portsmouth, NH 03801

    $465,000

    Large windows and a flexible interior support open work areas alongside two enclosed private offices.

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    Office Unit with Private Offices
    Office Unit with Private Offices

    3-51 Islington St, Portsmouth, NH 03801

    $465,000

    An adaptable floor plan pairs open workspace with two enclosed offices.

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    Renovated Office Condominium Unit
    Renovated Office Condominium Unit

    118 Maplewood Ave Unit 5, Portsmouth, NH 03801

    $250,000

    Two-room commercial suite with a full bathroom and immediate occupancy.

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    Corner Office Condo
    Corner Office Condo

    51 Islington St Unit 3, Portsmouth, NH 03801

    $465,000

    Two private offices complement an open work area that can support varied office configurations.

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    Full-Floor Office Condominium
    Full-Floor Office Condominium

    25 Maplewood Avenue, Portsmouth, NH 03801

    $4,500,000

    Finished professional office condominium with a private street entrance and dedicated underground parking.

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    Turn-Key Office Suite
    Turn-Key Office Suite

    102-2 Greenleaf Woods Dr, Portsmouth, NH 03801

    Contact for pricing

    Turn-key office unit with two separate offices, kitchenette, full bath, and large entry area.

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    Office Units with Flexible Layout
    Office Units with Flexible Layout

    500 Maplewood Ave # A, Portsmouth, NH 03801

    Contact for pricing
    8,202 sqft

    Two-level office configuration with private rooms, collaborative areas, support spaces, and unfinished expansion capacity.

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    Office Condominium Suite
    Office Condominium Suite

    5-118 Maplewood Ave, Portsmouth, NH 03801

    $250,000

    Office condominium unit with two rooms, full bathroom, and 2 on-site parking spaces, renovated in 2024.

    View details

    Portsmouth, NH Office Units Market Trends and Statistics

    Explore 26 office units for sale in Portsmouth, NH, showcased through 25 active listings on our real estate platform. These investment opportunities span a total of 33,115 square feet of properties for sale, with an estimated market value of $18,184,000.

    Sale prices for office units in Portsmouth, NH start at $125,000, averaging $826,545, and reaching up to $4,500,000 — offering options for a variety of budgets and business needs. Daily updated analytics ensure you stay ahead with the latest data and market trends.

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    Top Commercial Asset Segments

    Commercial property segments ranked by active listings on the market

    Office Units 97
    Medical Office Space 12
    Creative space 11
    Office buildings 8
    Coworking space 2

    Demographics Overview

    Population 23K
    Population Growth (5Y) +2.9%
    Median Household Income $106,520
    College Educated 17.1%

    High-Yield Neighborhoods for Investment

    Identify Portsmouth submarkets with the highest inventory density on the market and evaluate the average listing prices of real estate assets

    Neighborhood Average Price
    03801 $866.8K

    Taxes & Financing

    Tax Rate (average for all types) 1.49%
    Property Tax per SF $10.47 per SF
    Tax Rate vs County Average 0.23 pp below county avg
    Average Loan-to-Value 65.0%

    Listings Trend

    New vs delisted commercial listings in Rockingham County

    New Delisted

    Total CRE Inventory on Market (SF)

    Property Size Breakdown

    The majority of commercial real estate listings in Portsmouth fall within the 100,000+ square foot range.

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