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Mariner Square 125 Eugene O'Neill Dr 2,011 - 12,568 SF of 4-Star Office Space Available in New London, CT 06320

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HIGHLIGHTS

  • The building has been upgraded with a rooftop solar power system and new LED lighting throughout.
  • The building features an energy management software system that maximizes energy and HVAC efficiency.
  • Extensive improvements include sun-drenched lobby lounges with stylish furniture, top-of-the-line elevators cabs.
  • No touch faucets and flush valves have been installed in all the bathrooms.
  • Designed to maximize the picturesque views of the Thames River, Winthrop Cove ferry docks, Gold Star Memorial Bridge, and Historic Downtown.
  • Steps to the best of New London with two blocks to eclectic shops and galleries on State Street and waterfront dining and museums on Bank Street.

ALL AVAILABLE SPACES(2)

Display Rental Rate as

  • SPACE
  • SIZE
  • TERM
  • RENTAL RATE
  • SPACE USE
  • CONDITION
  • AVAILABLE
  • 1st Floor, Ste 105
  • 2,011 SF
  • Negotiable
  • $21.50 /SF/YR $1.79 /SF/MO $43,237 /YR $3,603 /MO
  • Office
  • Partial Build-Out
  • Now

Excellent office space available for lease featuring open space, private offices, and a kitchen.

  • Listed lease rate plus proportional share of cleaning costs
  • Mostly Open Floor Plan Layout
  • Ample natural light in space
  • Partially Built-Out as Standard Office
  • Kitchen
  • Open areas are suitable for various uses.
  • 3rd Floor
  • 10,557 SF
  • Negotiable
  • $21.50 /SF/YR $1.79 /SF/MO $226,976 /YR $18,915 /MO
  • Office
  • Partial Build-Out
  • Now

The 10,557 square feet available on the third floor consists of 2 contiguous spaces, one of which is partially built and features two walls of windows. The second apace was previously occupied by a financial services company and includes a reception area, a kitchen, 2 conference rooms and several offices. Both spaces offer panoramic views of New London harbor, the ferry terminal and other downtown activities.

  • Listed rate may not include certain utilities, building services and property expenses
  • Mostly Open Floor Plan Layout
  • Finished Ceilings: 9’
  • Fully Carpeted
  • Natural Light
  • Emergency Lighting
  • DDA Compliant
  • Panoramic waterfront views
  • Partially Built-Out as Standard Office
  • 4 Private Offices
  • Central Air Conditioning
  • Drop Ceilings
  • After Hours HVAC Available
  • Atrium
  • Open-Plan
  • 2 contiguous spaces with existing buildout in plac
Space Size Term Rental Rate Space Use Condition Available
1st Floor, Ste 105 2,011 SF Negotiable $21.50 /SF/YR $1.79 /SF/MO $43,237 /YR $3,603 /MO Office Partial Build-Out Now
3rd Floor 10,557 SF Negotiable $21.50 /SF/YR $1.79 /SF/MO $226,976 /YR $18,915 /MO Office Partial Build-Out Now

1st Floor, Ste 105

Size
2,011 SF
Term
Negotiable
Rental Rate
$21.50 /SF/YR $1.79 /SF/MO $43,237 /YR $3,603 /MO
Space Use
Office
Condition
Partial Build-Out
Available
Now

3rd Floor

Size
10,557 SF
Term
Negotiable
Rental Rate
$21.50 /SF/YR $1.79 /SF/MO $226,976 /YR $18,915 /MO
Space Use
Office
Condition
Partial Build-Out
Available
Now

1st Floor, Ste 105

Size 2,011 SF
Term Negotiable
Rental Rate $21.50 /SF/YR
Space Use Office
Condition Partial Build-Out
Available Now

Excellent office space available for lease featuring open space, private offices, and a kitchen.

  • Listed lease rate plus proportional share of cleaning costs
  • Partially Built-Out as Standard Office
  • Mostly Open Floor Plan Layout
  • Kitchen
  • Ample natural light in space
  • Open areas are suitable for various uses.

3rd Floor

Size 10,557 SF
Term Negotiable
Rental Rate $21.50 /SF/YR
Space Use Office
Condition Partial Build-Out
Available Now

The 10,557 square feet available on the third floor consists of 2 contiguous spaces, one of which is partially built and features two walls of windows. The second apace was previously occupied by a financial services company and includes a reception area, a kitchen, 2 conference rooms and several offices. Both spaces offer panoramic views of New London harbor, the ferry terminal and other downtown activities.

  • Listed rate may not include certain utilities, building services and property expenses
  • Partially Built-Out as Standard Office
  • Mostly Open Floor Plan Layout
  • 4 Private Offices
  • Finished Ceilings: 9’
  • Central Air Conditioning
  • Fully Carpeted
  • Drop Ceilings
  • Natural Light
  • After Hours HVAC Available
  • Emergency Lighting
  • Atrium
  • DDA Compliant
  • Open-Plan
  • Panoramic waterfront views
  • 2 contiguous spaces with existing buildout in plac

PROPERTY OVERVIEW

Mariner Square is a premier professional office building at 125 Eugene O'Neill Drive in downtown New London, Connecticut. With extensive renovations recently completed, Mariner Square boasts upgraded common areas, new elevators, and a state-of-the-art solar system. The light-filled atrium lobby welcomes tenants and guests into the well-maintained suites and sun-drenched lounges on each level. Nestled on the banks of the Thames River, Mariner Square was thoughtfully designed to maximize the views of Winthrop Cove while allowing for efficient, creative spaces. Mariner Square is in the heart of New London's business district, a New England city known for its distinct mix of old and new with its signature blend of amenities. Downtown New London houses an array of galleries, venues, shops, historical landmarks, and more. Mariner Square is steps to Bank Street's waterfront restaurants and State Street's locally owned boutiques and taverns. Marnier Square is easily accessible with an ideal location across from the train and ferry terminals and one mile from I-95, plus secure covered and surface parking on-site.

  • 24 Hour Access
  • Atrium
  • Bus Line
  • Controlled Access
  • Commuter Rail
  • Property Manager on Site
  • Waterfront
  • Central Heating
  • Natural Light
  • Air Conditioning

PROPERTY FACTS

Building Type
Office
Year Built/Renovated
1981/2020
LoopNet Rating
4 Star
Building Height
3 Stories
Building Size
81,833 SF
Building Class
A
Typical Floor Size
27,278 SF
Unfinished Ceiling Height
12’
Parking
130 Surface Parking Spaces
150 Covered Parking Spaces

SELECT TENANTS

  • FLOOR
  • TENANT NAME
  • INDUSTRY
  • 1st
  • Connecticut Legal Services
  • Services
  • 2nd
  • Legrand North America
  • Professional, Scientific, and Technical Services
  • 1st
  • Raymond James
  • Finance and Insurance
  • 1st
  • Regus
  • Real Estate
Walk Score®
Walker's Paradise (91)
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.®
  • Listing ID: 4044281

  • Date on Market: 1/7/2026

  • Last Updated:

  • Address: 125 Eugene O'Neill Dr, New London, CT 06320

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