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Turner is a North America-based, international construction services company and is a leading builder in diverse market segments.

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Our people bring their technical knowledge, experience, and resourcefulness to the delivery of our construction services. Our expertise and value-added offerings support our clients throughout the lifespan of the construction process.

As the largest general contractor in the country, Turner is a leader in all major market segments, including healthcare, education, commercial, sports, aviation, pharmaceutical, retail and green building.

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Four Seasons Modernization

Four Seasons Modernization

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Thanks for your interest in Turner. Whether you are looking to start a project, get support, or just have a general question, we want to hear from you. Drop us a line and we will get back to you.

Turner Construction Company

66 Hudson Boulevard East

New York, NY 10001

(212) 229-6000

Report issues 24 hours a day, 7 days a week to Turner’s Confidential Reporting System

(888) 738-1924

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Project overview

Business Unit(s)


Year Completed



WS Development

Client Industry


Scope of Work

New Construction


525,000 sq. ft., 17-Stories


Gensler, James Corner Field Operations


Risk Management
Virtual Design & Construction

WS Development, Seaport Block L4 Tower

Transforming the Boston Seaport

WS Development’s Seaport Block L4 Project is home to a confidential e-commerce client, providing 400,000 sq. ft. of new offices, conference rooms, and kitchen serveries for approximately 2,000 employees. The 525,000 sq. ft. building includes two levels of retail space along with fifteen levels of office space. The new structure also provides two levels of below-grade parking and outdoor amenities, including areas for concerts, cafes and a skating rink. This building is pursuing LEED Gold certification. The building has a tiered glass curtain wall facade and welcoming green spaces that align with the contemporary ambiance of the surrounding Seaport community.