Seaport Square Block L4

Work Continues on Foundation/Below Grade Parking for Seaport Square Block L4

Construction is ongoing for the foundation and two levels of below-grade parking at Seaport Square Block L4, future home of Amazon. Block L4 will feature 444,000 square feet of office space above two levels of retail, 81,000 square feet. The project will also bring a new park to the area, connecting Summer Street to the Waterfront, Harbor Square Park will be a 1/3 mile public promenade designed by the world-renowned landscape architecture firm James Corner Field Operations, possibly best known for their work on Manhattan’s High Line. 

Construction on Seaport Square Block L4 is expected to be complete in 2021.

Seaport Square Block L4 Financed for $435 Million

The project at Seaport Square Block L4 has been financed via Citizens Bank for $435 million.

The upcoming project consists of a 17 story retail and office building to be constructed on a 1.63-acre parcel in Boston's Seaport Square.

The 525,000 square foot building will feature 81,000 square feet of retail space on the first two levels accompanied by 444,000 square feet of office space on the upper 15 levels.

WS Development Officially Breaks Ground on New Amazon Office Space on Seaport Square Block L4

Governor Baker & Mayor Walsh were on hand earlier this week for the groundbreaking ceremony for WS Development's newest Seaport Project, 111 Harbor Way (Block L4). While construction has been underway for a few months, WS took the opportunity to officially break ground on the upcoming 17-story, 525,000 square foot project. Amazon will be expanding into 430,000 square feet of new office space at the building, creating 2,000 high-tech jobs, in fields including machine learning, speech science, cloud computing, and robotics engineering. Michael Touloumtzis of Amazon told the crowd Amazon continues to expand in Massachusetts partly due to the strong talent pool here and his team is excited to expand into the high-tech new space sometime in 2021.

Yanni Tsipis of WS Development touched on the importance of the project in expanding the public realm with an emphasis on green space. Harbor Square Park will be a focal point of the future Harbor Way, a 1/3-mile public promenade that will connect Summer Street to the water’s edge – a plan conceived of by the world-renowned landscape architecture firm James Corner Field Operations, possibly best known for their work on Manhattan’s High Line.

The event which featured mini-lobster rolls, steel drums, and some delicious Taiyaki Ice Cream was capped off with the firing of confetti cannons. Photos courtesy: Michael Blanchard

WS Development & Amazon to Break Ground on Tuesday in the Seaport

Seaport will usher in its next exciting wave of development with the groundbreaking of 111 Harbor Way (Block L4 of the Boston Seaport project), home to Amazon’s new office in the heart of the Seaport neighborhood. Attendees will include Governor Baker, Mayor Walsh, the WS Development team and representatives from Amazon.

Slated for completion in 2021, the building is a central component of WS Development’s Boston Seaport project, the largest single real estate endeavor in city history, spanning 23 acres across 20 city blocks.

111 Harbor Way is a 525,000 square foot, 17-story building with two stories devoted to retail and restaurant uses. Last year, Amazon announced it would expand its Boston Tech Hub and create an additional 2,000 high-tech jobs, in fields including machine learning, speech science, cloud computing, and robotics engineering. To accommodate the new job creation, Amazon will be expanding into 430,000 square feet of new office space at 111 Harbor Way.

WS Development chose esteemed architectural firm Gensler to envision and design the tower. In a collaboration between its Boston and San Francisco offices, Gensler respected the authentic industrial context of the Seaport, creating a building that has a timeless aesthetic and a highly articulated expression.

The building’s design emphasizes human-focused elements, including outdoor terraces on alternating floors and the Paseo, a street-level interior public promenade lined with shops, cafes, and a welcoming central amphitheater. The Paseo will lead pedestrians to Harbor Square Park, a one-acre public space being constructed concurrently with the building, which will expand the public realm in the Seaport and create a vibrant new open space hub for the Seaport.

Harbor Square Park is a focal point of the future Harbor Way, a 1/3-mile public promenade that will connect Summer Street to the water’s edge – a plan conceived of by the world-renowned landscape architecture firm James Corner Field Operations, possibly best known for their work on Manhattan’s High Line. The park will create a hub of community activity across all seasons, hosting hundreds of public events annually including art and music performances, markets, and a public winter skating rink.

Construction Ongoing for Underground Garage at Seaport Square Block L4

Construction is ongoing for the 2-story below grade parking garage that will sit below the upcoming office building on Seaport Square Block L4. The garage foundation slurry walls will be constructed on two sides, north and east and will serve as temporary earth support during construction. There will no foundation wall on the west and south sides of the project as the garage is intended to connect to future phases of development. Above the garage a 17 story retail and office building to be constructed. The 525,000 square foot building will feature 81,000 square feet of retail space on the first two levels accompanied by 444,000 square feet of office space on the upper 15 levels. The office space will be the future home of around 2,000 Amazon employees.

Construction Underway at Seaport Square Block L4

Initial site work is underway at Seaport Square Block L4, the future headquarters of Amazon's Boston Office.

The project consists of a 17 story retail and office building to be constructed on a 1.63-acre parcel in Boston's Seaport Square.

The 525,000 square foot building will feature 81,000 square feet of retail space on the first two levels accompanied by 444,000 square feet of office space on the upper 15 levels.