Developers H20 Urban – a partnership between The Canal & River Trust and private development company Bloc – said the new structure would “enhance” services for the existing marina business.
They claim it would also support improved mooring opportunities within the marina and along the River Weaver frontage.
A planning statement said: “The site has undergone an extensive design review, involving all relevant parties.
“The result is an attractive residential development, which will positively contribute to the local area, and blend harmoniously with its surroundings.”
The scheme had proven controversial in the past with councillors raising concerns about flood risk management, loss of flood plains and the impact on roads.