Synthesia Expanded New York City Headquarters
The AI company leased 50,000 square feet at 675 Avenue of the Americas to support its growing U.S. operations.
Updated on Oct. 9, 2026 in Commercial
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Synthesia has signed a lease for a 50,000-square-foot space at 675 Avenue of the Americas in Manhattan to serve as its new U.S. headquarters. The move marks a nearly fourfold expansion from its former 13,000-square-foot office at 245 Fifth Avenue.
Why it matters
This significant increase in office footprint reflects the company’s broader U.S. growth strategy and its need to accommodate a rising headcount. The decision aligns with the firm's ongoing effort to scale its presence in New York City.
The new office occupies 50,000 square feet, significantly larger than the firm's previous 13,000-square-foot location. The building at 675 Avenue of the Americas, constructed in 1901, features 13-foot ceilings.
The players
Synthesia
This is an artificial intelligence company that specializes in generating synthetic media and video content.
Lee & Associates NYC
This commercial real estate services firm provides brokerage and advisory support for office and industrial clients.
The details
Synthesia, which currently employs 140 people in New York City and over 250 across the U.S., relocated from its former space on Fifth Avenue to the new facility in Chelsea. The transaction was facilitated by brokers from Lee & Associates NYC and the building's landlord representation team.
Timeline
The building at 675 Avenue of the Americas was originally constructed in 1901.
Synthesia plans to increase its number of U.S. roles by the end of 2026.
Roadmap
This move highlights the ongoing corporate shift toward securing larger, modern office environments to support expanding technical workforces. It positions Synthesia to leverage high-demand infrastructure in Manhattan's Chelsea district as it competes for top-tier talent.
The relocation centralizes the firm's New York operations into a larger facility in Chelsea, potentially increasing professional activity in the immediate neighborhood. Employees and local businesses in the district may see higher foot traffic as the company expands its local workforce.
The takeaway
Large-scale office expansions in historic city buildings signal sustained growth for technology firms despite shifts toward remote work. Companies looking to scale should prioritize infrastructure that accommodates both current headcounts and long-term hiring goals.
What happens next
The company expects to continue adding to its U.S. headcount through the end of 2026.
Further reading
For more on local market developments, see New York City Commercial.
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