The first environmental scoping planning report for the proposed Eden Project North attraction has been submitted to Lancaster City Council.
Backed by Eden Project International, the project will consist of five mussel-shaped domes rising to nearly 40m.
These will offer 21st century re-imagined lidos, gardens, performance spaces, immersive experiences focused on the marine environment and observatories.
It is due to open in spring 2023, following a two-year construction period.
David Harland, chief executive of Eden Project International, said: “This is an important milestone for Eden Project North.
“Having a positive impact on the internationally significant environment of Morecambe Bay is fundamental to our vision for this project. This report is the next step towards making Eden Project North a reality.”
EPIL is working with Lancashire Enterprise Partnership, Lancaster University, Lancashire County Council and Lancaster City Council to deliver Eden Project North.
Each of these has contributed £250,000 towards the cost of designing and planning. This is in addition to £100,000 pledged by the Government.
The project has the support of Northern Powerhouse Minister Jake Berry MP, who has pledged to help Morecambe and Lunesdale MP David Morris lobby the Chancellor of the Exchequer for further funding.