Landlord Sues Vineyard Offshore for Missed Rent Payments

One of the leading offshore wind energy developers is being sued by its Boston landlord for allegedly failing to pay more than $1 million in rent and other fees. 

Vineyard Offshore, an affiliate of Vineyard Wind backer Cophegan Infrastructure Projects, has allegedly not been paying rent since March for the offices at the former Hancock building in Boston, according to the eight-page complaint filed by landlord BP Hancock. 

The lawsuit is the latest legal complaint lodged at offshore wind energy, though one of the only ones that doesn’t have to do with the dozens of turbines that have been built to the south of Martha’s Vineyard. 

In this instance, BP Hancock claims that Vineyard Offshore signed onto a lease for 28,370 square feet of office space on the 18th floor of the skyscraper at 200 Clarendon street. 

BP Hancock claimed that Vineyard Offshore now owes $824,338.99 in unpaid rent and fees, and nearly $400,000 for a security deposit, according to the lawsuit, filed in Suffolk County Superior Court on June 10. 

“Tenant has been in default since March 1, 2026, after it failed to pay Rent and other charges due under the Lease and to replenish its security deposit,” attorney Kate Moran Carter wrote. “Despite multiple written notices of default from Landlord, Tenant has failed to cure its continuing breaches.”

A spokesperson for Vineyard Offshore did not respond to a request for comment. 

When Vineyard Offshore didn’t pay rent, BP Hancock used the tenant’s security deposit to cover the rent, which then triggered a provision where Vineyard Offshore needed to replenish the deposit. 

When the rent wasn’t paid again, BP took the remainder of the deposit, but was still owed hundreds of thousands of dollars.

Including the lease breach and damages, BP Hancock said it is owed a little more than $1.2 million, and asked the court to order Vineyard Offshore to pay up.

An initial court date for the case had not been set as of Monday. 

Vineyard Offshore helped develop Vineyard Wind, the first large-scale offshore wind energy project that gained approval in the U.S. The project is now in a legal battle of its own with its turbine manufacturer GE Vernova. Both parties in that suit claim the other owes them hundreds of millions of dollars. 

Vineyard Offshore has also worked to develop projects in New York and Northern California.