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Kearsarge House 104 Congress St 350 - 6,998 SF of Office Space Available in Portsmouth, NH 03801

Office Spaces New Hampshire Portsmouth 104 Congress St, Portsmouth, NH 03801

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HIGHLIGHTS

  • Small office suites available in Downtown location
  • Lots of natural light
  • Near vibrant mix of shops and dining
  • 2nd, 3rd and 4th floor options
  • Move-in-Ready
  • Next door to the historic Music Hall – tenant receives a complimentary corporate membership, to include access to the Members Club.

ALL AVAILABLE SPACES(6)

Display Rental Rate as

  • SPACE
  • SIZE
  • TERM
  • RENTAL RATE
  • SPACE USE
  • CONDITION
  • AVAILABLE
  • 2nd Floor, Ste 203 & 206
  • 1,860 SF
  • Negotiable
  • $48.86 CAD/SF/YR $4.07 CAD/SF/MO $90,874 CAD/YR $7,573 CAD/MO
  • Office
  • -
  • Now
  • Listed rate may not include certain utilities, building services and property expenses
  • 3rd Floor, Ste 301B
  • 350 SF
  • Negotiable
  • $48.86 CAD/SF/YR $4.07 CAD/SF/MO $17,100 CAD/YR $1,425 CAD/MO
  • Office
  • -
  • Now
  • Listed rate may not include certain utilities, building services and property expenses
  • 3rd Floor, Ste 302 & 304
  • 2,157 SF
  • Negotiable
  • $48.86 CAD/SF/YR $4.07 CAD/SF/MO $105,385 CAD/YR $8,782 CAD/MO
  • Office
  • -
  • Now
  • Listed rate may not include certain utilities, building services and property expenses
  • 4th Floor, Ste 401 & 401A
  • 853 SF
  • Negotiable
  • $48.86 CAD/SF/YR $4.07 CAD/SF/MO $41,675 CAD/YR $3,473 CAD/MO
  • Office
  • -
  • Now
  • Listed rate may not include certain utilities, building services and property expenses
  • 4th Floor, Ste 402
  • 818 SF
  • Negotiable
  • $48.86 CAD/SF/YR $4.07 CAD/SF/MO $39,965 CAD/YR $3,330 CAD/MO
  • Office
  • -
  • Now
  • Listed rate may not include certain utilities, building services and property expenses
  • 4th Floor, Ste 403
  • 960 SF
  • Negotiable
  • $48.86 CAD/SF/YR $4.07 CAD/SF/MO $46,903 CAD/YR $3,909 CAD/MO
  • Office
  • -
  • Now
  • Listed rate may not include certain utilities, building services and property expenses
Space Size Term Rental Rate Space Use Condition Available
2nd Floor, Ste 203 & 206 1,860 SF Negotiable $48.86 CAD/SF/YR $4.07 CAD/SF/MO $90,874 CAD/YR $7,573 CAD/MO Office - Now
3rd Floor, Ste 301B 350 SF Negotiable $48.86 CAD/SF/YR $4.07 CAD/SF/MO $17,100 CAD/YR $1,425 CAD/MO Office - Now
3rd Floor, Ste 302 & 304 2,157 SF Negotiable $48.86 CAD/SF/YR $4.07 CAD/SF/MO $105,385 CAD/YR $8,782 CAD/MO Office - Now
4th Floor, Ste 401 & 401A 853 SF Negotiable $48.86 CAD/SF/YR $4.07 CAD/SF/MO $41,675 CAD/YR $3,473 CAD/MO Office - Now
4th Floor, Ste 402 818 SF Negotiable $48.86 CAD/SF/YR $4.07 CAD/SF/MO $39,965 CAD/YR $3,330 CAD/MO Office - Now
4th Floor, Ste 403 960 SF Negotiable $48.86 CAD/SF/YR $4.07 CAD/SF/MO $46,903 CAD/YR $3,909 CAD/MO Office - Now

2nd Floor, Ste 203 & 206

Size
1,860 SF
Term
Negotiable
Rental Rate
$48.86 CAD/SF/YR $4.07 CAD/SF/MO $90,874 CAD/YR $7,573 CAD/MO
Space Use
Office
Condition
-
Available
Now

3rd Floor, Ste 301B

Size
350 SF
Term
Negotiable
Rental Rate
$48.86 CAD/SF/YR $4.07 CAD/SF/MO $17,100 CAD/YR $1,425 CAD/MO
Space Use
Office
Condition
-
Available
Now

3rd Floor, Ste 302 & 304

Size
2,157 SF
Term
Negotiable
Rental Rate
$48.86 CAD/SF/YR $4.07 CAD/SF/MO $105,385 CAD/YR $8,782 CAD/MO
Space Use
Office
Condition
-
Available
Now

4th Floor, Ste 401 & 401A

Size
853 SF
Term
Negotiable
Rental Rate
$48.86 CAD/SF/YR $4.07 CAD/SF/MO $41,675 CAD/YR $3,473 CAD/MO
Space Use
Office
Condition
-
Available
Now

4th Floor, Ste 402

Size
818 SF
Term
Negotiable
Rental Rate
$48.86 CAD/SF/YR $4.07 CAD/SF/MO $39,965 CAD/YR $3,330 CAD/MO
Space Use
Office
Condition
-
Available
Now

4th Floor, Ste 403

Size
960 SF
Term
Negotiable
Rental Rate
$48.86 CAD/SF/YR $4.07 CAD/SF/MO $46,903 CAD/YR $3,909 CAD/MO
Space Use
Office
Condition
-
Available
Now

2nd Floor, Ste 203 & 206

Size 1,860 SF
Term Negotiable
Rental Rate $48.86 CAD/SF/YR
Space Use Office
Condition -
Available Now

  • Listed rate may not include certain utilities, building services and property expenses

3rd Floor, Ste 301B

Size 350 SF
Term Negotiable
Rental Rate $48.86 CAD/SF/YR
Space Use Office
Condition -
Available Now

  • Listed rate may not include certain utilities, building services and property expenses

3rd Floor, Ste 302 & 304

Size 2,157 SF
Term Negotiable
Rental Rate $48.86 CAD/SF/YR
Space Use Office
Condition -
Available Now

  • Listed rate may not include certain utilities, building services and property expenses

4th Floor, Ste 401 & 401A

Size 853 SF
Term Negotiable
Rental Rate $48.86 CAD/SF/YR
Space Use Office
Condition -
Available Now

  • Listed rate may not include certain utilities, building services and property expenses

4th Floor, Ste 402

Size 818 SF
Term Negotiable
Rental Rate $48.86 CAD/SF/YR
Space Use Office
Condition -
Available Now

  • Listed rate may not include certain utilities, building services and property expenses

4th Floor, Ste 403

Size 960 SF
Term Negotiable
Rental Rate $48.86 CAD/SF/YR
Space Use Office
Condition -
Available Now

  • Listed rate may not include certain utilities, building services and property expenses

PROPERTY OVERVIEW

Located in the heart of downtown Portsmouth, 104 Congress Street offers small professional office suites on the 2nd, 3rd and 4th floors – ideal for solo practitioners, startups, or small teams seeking a central location. These suites feature natural light, historic charm, and easy access to the city’s best restaurants, shops, and services. The building is professionally managed and situated just steps from Market Square with nearby parking and easy access to I-95.

PROPERTY FACTS

Building Type
Office
Year Built
1820
Building Height
4 Stories
Building Size
15,544 SF
Building Class
B
Typical Floor Size
3,886 SF
Parking
Surface Parking
Surface Tandem Parking
Covered Parking
Covered Tandem Parking
Reserved Parking

ATTACHMENTS

Marketing Brochure

LINKS

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Walk Score®
Walker's Paradise (97)
What is a Walk Score®, Transit Score® & Bike Score®?
Walk Score® measures the walkability of any address.
Transit Score® measures access to public transit.
Bike Score® measures bikeability of a location.
What is a Walk Score®
, Transit Score® & Bike Score?
Walk Score® measures the walkability
of any address. Transit Score®
measures access to public transit. Bike Score®
measures bikeability of a location.®
Learn How It Works Detailed Scores
(603) 427-1333 x3

Still interested?

Contact the brokers for more information about this property

CONTACTS

  • Listing ID: 36111176

  • Date on Market: 2025-10-18

  • Last Updated:

  • Address: 104 Congress St, Portsmouth, NH 03801

The Office Property at 104 Congress St, Portsmouth, NH 03801 is currently available for Lease. Contact The Boulos Company for more information.

OFFICE PROPERTIES IN NEARBY NEIGHBORHOODS

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Kearsarge House | 104 Congress St
(603) 427-1333 x 3

Kearsarge House | 104 Congress St

Caitlin Burke
(603) 427-1333 x3

Austin Stebbins
(603) 427-1333

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