The green light has been given to the £125m Eden Project North in Morecambe.
Lancaster City Council has approved planning permission for the scheme which includes proposals including shell-shaped exhibition pavillions, indoor and outdoor activities, and extra events through the summer.
Councillors on the local authority's planning committee voted in favour of the long-awaited application on Monday, January 31.
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Hundreds of jobs are expected to be created with the new seafront venue, which is linked to the Eden Project in Cornwall but will be distinctly focused on Morecambe Bay, according to the Local Democracy Reporting Service.
The economic boost of the new development could benefit Morecambe, Lancaster and wider bay region, Eden Project believes.
In Morecambe, the new attraction will be built on the seafront at Marine Road. The location is close to various grade II-listed buildings including the restored art deco Midland Hotel and the Winter Gardens, a venue once known as the 'Albert Hall of the North' which is currently being renovated as a concert and events hall.
Visitor numbers at the new Eden North could reach up to one million a year, according to the planning application.
The new attraction will have three main areas and should be able to hold up to 4,000 visitors a day. It is expected to attract an average of 750,000 customers each year.
The site will include exhibits, performance space, learning, play and immersive experiences, alongside three cafe-restaurants, a visitor centre and retail space.
Eden Project hopes the new site will open in 2024 with a building period of two years.
The proposed development will directly employ around 390 full-time equivalent staff with a maximum of 280 workers on-site at any given time.
In addition to the main venue, an outdoor arena holding up to 6,000 people is included in the proposals. Up to eight late-evening events are planned each year during summer, between 6pm and midnight.
Ross Shine, partner at Brabners, said: "Eden Project North has the potential to be transformative for Morecambe and the wider Lancashire economy.
"With the government’s ‘levelling up’ white paper expected in the coming days, it is ambitious infrastructure projects such as this that will create sustainable growth for the northern economy and, moreover, attract further inward investment for future development.
"The determination shown by Lancaster City Council and Eden Project International to get to this point is hugely admirable and we look forward to seeing its vision become a reality in the not-too-distant future."