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    Portsmouth, NH
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    Portsmouth, NH Office Units for Lease

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    Downtown Office Suites
    Downtown Office Suites

    25 Chestnut Street, Portsmouth, NH 03801

    $20 SF/Yr

    Two move-in ready office suites with efficient floor plans and excellent natural light in Downtown Portsmouth.

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    Historic Office Space in Portsmouth
    Historic Office Space in Portsmouth

    75 Congress St, Portsmouth, NH 03801

    $675/Mo

    Charming offices and suites in downtown Portsmouth's historic building.

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    Renovated Downtown Office Suites
    Renovated Downtown Office Suites

    208-10 Vaughan Mall, Portsmouth, NH 03801

    $3,500/Mo

    Three recently renovated office suites above ground-floor tenants, with high ceilings and abundant natural light; space can be combined.

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    Renovated Office Suites
    Renovated Office Suites

    210-10 Vaughan Mall, Portsmouth, NH 03801

    $2,000/Mo

    Three bright, high-ceiling suites provide adaptable layouts with options to combine space.

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    Second-Floor Office Suites
    Second-Floor Office Suites

    300 Constitution Avenue Unit: 1, Portsmouth, NH 03801

    Contact for pricing

    Available spaces range from an open single-room layout to a multi-office suite with conference rooms and furniture.

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    Refurbished Office Suites with Patio
    Refurbished Office Suites with Patio

    1-282 Corporate Dr, Portsmouth, NH 03801

    $7 SF/Yr

    Two newly refurbished office suites offer private restrooms, conference space, and an outdoor patio option.

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    Portsmouth Office Space For Rent
    Portsmouth Office Space For Rent

    2 Greenleaf Woods Drive, Portsmouth, NH 03801

    $1,100/Mo

    Turn-key office unit in Greenleaf Woods, Portsmouth, NH.

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    Renovated Medical Office Space
    Renovated Medical Office Space

    8-875 Greenland Rd, Portsmouth, NH 03801

    $15 SF/Yr

    Professional space with natural light, on-site parking, and convenient access to I-95.

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    Office Building with Showroom
    Office Building with Showroom

    A-500 Maplewood Ave, Portsmouth, NH 03801

    $10.48 SF/Yr
    8,202 sqft

    Multi-level office property with private rooms, collaborative areas, meeting spaces, kitchen facilities, and storage.

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    Shared Office Suite with Kitchenette
    Shared Office Suite with Kitchenette

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

    Contact for pricing

    Office workspace includes a shared restroom with shower, kitchenette, and waiting area.

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    Brick-Detail Office Suite
    Brick-Detail Office Suite

    One Cate Street, Unit 1A, Portsmouth, NH 03801

    Contact for pricing
    2,420 sqft

    A first-floor corner layout offers direct access and distinctive brick and metal finishes.

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    Office Units with On-Site Parking
    Office Units with On-Site Parking

    4 Greenleaf Woods Drive, Portsmouth, NH 03801

    $595/Mo
    6,414 sqft

    Updated professional offices support healthcare and therapy practices in a campus-style setting near downtown.

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    Medical Office Suite with Private Bath
    Medical Office Suite with Private Bath

    301-4 Greenleaf Woods Dr, Portsmouth, NH 03801

    $595/Mo

    Office suite includes a private bath with shower, kitchenette, and natural light from windows on three sides.

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    Class A Office Spaces Available
    Class A Office Spaces Available

    300 Constitution Ave, Portsmouth, NH 03801

    Contact for pricing
    10,275 sqft

    Class A office spaces for lease with modern designer furniture.

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    Second-Floor Office Suites
    Second-Floor Office Suites

    200-300 Constitution Ave, Portsmouth, NH 03801

    $14 SF/Yr

    Two distinct layouts include elevator access, tall ceilings, and ample window light.

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    Office Suite with Conference Rooms
    Office Suite with Conference Rooms

    300 Constitution Avenue Unit: 200, Portsmouth, NH 03801

    Contact for pricing

    A furnished workspace includes private offices, meeting rooms, a kitchen and an open work area.

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    Based on your search, we've compiled 92 Potential Opportunities for your consideration. Besides 64 Active listings in Portsmouth, NH, we suggest exploring alternatives. Consider Similar 24 Spaces for Sales.

    Office Units for Lease in Nearby Cities

    Here are 4 Similar Spaces we found in Nearby Locations for your consideration.

    Office Units with Common Entry
    Office Units with Common Entry

    19 Bridge Street, Kittery, ME 03904

    $600-$900/Mo
    0.09 AC lot

    Five leasable office suites share kitchen and bathroom facilities in a compact commercial property.

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    Office Unit With Treatment Rooms
    Office Unit With Treatment Rooms

    1 Bayside Rd 101, Greenland, NH 03840

    $2,150/Mo
    1,519 sqft

    Renovated commercial suite with multiple enclosed rooms, private bath facilities, and access to a shared parking area.

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    Renovated Medical Office Suite
    Renovated Medical Office Suite

    101-1 Bayside Rd, Greenland, NH 03840

    $2,150/Mo
    1,519 sqft

    Renovated in 2025 with treatment rooms, private bathrooms, and laundry hookups.

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    New Office Suites
    New Office Suites

    19 Bridge St Unit 9, Kittery, ME 03904

    $600/Mo

    New office suites feature a common entry with included kitchens and bathrooms, available as individual or multiple suites.

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    Similar Spaces for Sale in Portsmouth, NH

    Consider Similar Space for Sale. We found 24 Spaces matching your search parameters.

    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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    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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    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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    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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    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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