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Portsmouth, NH Commercial Real Estate for Sale

36 results
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Historic Portsmouth Mixed-Use Gem
$3,600,000
0.11 Acres

Historic Portsmouth Mixed-Use Gem

56 Market St, Portsmouth, NH 03801

Mixed-use property with commercial space and residential apartments in Portsmouth.

  • Prime location in the heart of Portsmouth, NH, offering convenient access to amenities, transportation, and cultural attractions.
  • Versatile mixed‑use property with over 6,000 sqft of commercial space and two apartments, providing diverse income potential.
  • Historic building, formerly the Portsmouth Brewery, offering unique character and appeal.
  • Spacious penthouse apartment with 14 ft ceilings.
  • Massive first floor with soaring ceilings and exposed brick walls.
Updated: Jan 2
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Luxury Commercial Condo in Portsmouth
$2,300,000
0.11 Acres

Luxury Commercial Condo in Portsmouth

20 Ladd St, Portsmouth, NH 03801

Meticulously renovated 4,600 sq.ft. commercial condo with residential conversion potential.

  • Premier downtown Portsmouth location, steps from restaurants, shops, and the waterfront.
  • Rare potential for residential conversion of a 4,600± sq.ft. luxury commercial condominium.
  • Meticulously renovated historic 1860 building blending architectural character with modern amenities.
  • Bright, flexible open layout with nine private offices, two conference rooms, reception area, and three bathrooms.
  • Professional‑grade kitchen with commercial stainless steel appliances, hood system, and refrigeration.
Updated: Oct 20, 2025
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Mixed-Use Development Opportunity, Portsmouth
$6,800,000
0.20 Acres

Mixed-Use Development Opportunity, Portsmouth

Mixed-use development opportunity in the heart of Portsmouth, New Hampshire.

266 State St, Portsmouth, NH 03801
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Waterfront Lot Near Downtown Portsmouth
$1,000,000
0.41 Acres

Waterfront Lot Near Downtown Portsmouth

Waterfront mixed-use property near downtown Portsmouth, offering versatile development opportunities.

98 Cornwall St, Portsmouth, NH 03801
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Downtown Portsmouth Office Suites
$1,200,000
3,186 SF

Downtown Portsmouth Office Suites

Recently renovated office suites in vibrant downtown Portsmouth.

8 Vaughan St, Portsmouth, NH 03801
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Portsmouth Art Studio For Sale
$235,000

Portsmouth Art Studio For Sale

Two-level art studio with natural light and garage access.

871 Islington St, Portsmouth, NH 03801
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Turnkey Restaurant Opportunity in Portsmouth
$200,000

Turnkey Restaurant Opportunity in Portsmouth

Turnkey restaurant with dining rooms, bars, patio in downtown Portsmouth.

175 High St, Portsmouth, NH 03801
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Downtown Portsmouth Office Suites
$300,000

Downtown Portsmouth Office Suites

Recently renovated office suites in a prime downtown location.

10 Vaughan St, Portsmouth, NH 03801
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Prime Portsmouth Commercial Building For Sale
$595,000
0.11 Acres

Prime Portsmouth Commercial Building For Sale

Versatile 1,470 SF building in high-traffic Portsmouth location.

1290 Woodbury Ave, Portsmouth, NH 03801
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Waterfront Lot Near Downtown Portsmouth
$1,000,000
0.16 Acres

Waterfront Lot Near Downtown Portsmouth

Waterfront lot near downtown Portsmouth with redevelopment potential.

94 Langdon St, Portsmouth, NH 03801
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Downtown Portsmouth Office Suites Available
$425,000

Downtown Portsmouth Office Suites Available

Recently renovated office suites in a vibrant, walkable downtown location.

10 Vaughan St, Portsmouth, NH 03801
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Historic Mixed-Use Portsmouth Gem
$2,400,000

Historic Mixed-Use Portsmouth Gem

Historic Portsmouth mixed-use property with commercial and residential spaces.

48 Market St, Portsmouth, NH 03801
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Historic Portsmouth Office Building For Sale
$3,300,000
0.25 Acres

Historic Portsmouth Office Building For Sale

Landmark Portsmouth building, ideal for professional offices or business.

144 Washington St, Portsmouth, NH 03801
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Downtown Portsmouth Office Suites Available
$500,000

Downtown Portsmouth Office Suites Available

Recently renovated office suites in a prime downtown location.

10 Vaughan St, Portsmouth, NH 03801
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Portsmouth Commercial Office Condominium
$250,000

Portsmouth Commercial Office Condominium

Commercial office condominium in Portsmouth, renovated in 2024.

118 Maplewood Ave, Portsmouth, NH 03801
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Historic Portsmouth Brewery Building
$4,500,000
10,434 SF

Historic Portsmouth Brewery Building

Prime Location, Versatile Spaces, Investment Opportunity

56 Market St, Portsmouth, NH 03801
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Portsmouth Office Condo - Prime Location
$300,000

Portsmouth Office Condo - Prime Location

Downtown Portsmouth office, renovated 2024.

118 Maplewood Ave, Portsmouth, NH 03801
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Portsmouth Office Space: North End Gem
Contact for pricing

Portsmouth Office Space: North End Gem

Class A Office, Vibrant Location, 2,325 RSF

12 Portwalk Pl, Portsmouth, NH 03801
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Portsmouth Medical Office Condo
$1,130,000

Portsmouth Medical Office Condo

Prime Location, Two Vacant Units

100 Griffin Rd, Portsmouth, NH 03801
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Historic Portsmouth Commercial Gem
$2,400,000
5,575 SF

Historic Portsmouth Commercial Gem

Prime Location, Mixed-Use Investment

48 Market St, Portsmouth, NH 03801
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Portsmouth Office Space for Lease
Contact for pricing

Portsmouth Office Space for Lease

Prime Portsmouth Office, Ample Parking

875 Greenland Rd, Portsmouth, NH 03801
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Portsmouth Retail & Office Space
Contact for pricing
6,200 SF

Portsmouth Retail & Office Space

Prime Portsmouth location, flexible lease options.

150 Mirona Road Ext, Portsmouth, NH 03801
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Portsmouth Retail & Office Space
Contact for pricing
6,200 SF

Portsmouth Retail & Office Space

Prime Portsmouth location, flexible lease options.

150 Mirona Road Ext, Portsmouth, NH 03801
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Portsmouth Retail/Office Space
Contact for pricing

Portsmouth Retail/Office Space

Prime Portsmouth location, 4100+ sq ft available.

72 Mirona Road Ext, Portsmouth, NH 03801
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Portsmouth, NH Commercial Real Estate Investment Opportunities Market Analysis

Explore 1330 commercial real estate investment opportunities in Portsmouth, NH with 36 listings featured on our commercial real estate marketplace. The current inventory includes 8,742,978 square feet of properties with an estimated value of $255,170,000.

Estimated prices for commercial real estate in Portsmouth, NH begin at $210,000, with an average of $1,509,881 and extend to $14,860,000.

In Portsmouth, NH, current investment values show:

  • Retail properties positioned at $1,506,333
  • Individual retail properties measuring $1,737,051
  • Mixed-use properties assessed at $1,090,468
  • Investment properties calculated at $810,172
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