New spaces to be unlocked and Conservatory to be overhauled in refresh of deteriorating grade II-listed siteFirst sketch of Allies & Morrison and Asif Khans proposals to refurbish the BarbicanPlans by Allies & Morrison and Asif Khan for a long-awaited 240m refurbishment of the Barbican have been unveiled in a first consultation round.The grade II-listed London arts venue has given members of the public a first look at proposals to restore and renew the deteriorating site, which has faced an array of problems in recent years including leaking in its exhibition halls.The plans, available to view online until 17 February, will also unlock underused spaces for public use and upgrade its building systems to meet net zero targets.> Also read:Climate policies hit City of Londons Barbican repair works with 16 month delay and 60% cost hikeThe grid of concrete columns which fills the venues main foyer will be restored along with improved lighting, new facilities and upgrades to doors and lifts.A major decluttering of the area to create new flexible spaces will also enable art and performance to be brought into the heart of the building.The main foyer area will be decluttered with new spaces unlocked for arts and performanceThe lakeside area above the podium, which has battled issues with a damaged waterproofing membrane, will be repaved and its fountains will be upgraded to provide passive cooling in the summer.The popular Conservatory, Londons second biggest, will also be reimagined to ensure its thousands of plants remain the stars of the show, the venue said, with dramatic, architectural new planting aiming to provide a sense of theatre.The space will also be made fully accessible and able to remain open for longer hours, providing more scope for events.Barbican director of buildings and renewals Philippa Simpson said the project aims to celebrate the history and heritage of this special site.The venues lakeside area will be repaved and its fountains refurbished to provide passive cooling in the summerThe Barbican has always been about Renewal, a beacon of an optimistic future in the wake of the Second World War, she said.This project is rooted in the vision and ambition of its founders, to reimagine what an arts centre can be in the 21st century, a vital, creative space for everyone.Allies & Morrison director Oliver Heywood added: The Barbican is one of Londons most iconic spaces. Our goal is to honour the Centres original bold architectural legacy, while making it more inclusive, sustainable, and fit for the future.Feedback from the consultation will inform the next stage of the plans, set to be unveiled in May, with construction expected to start in 2027 if a planning application is approved.> Also read:SOM working up plans for two-tower office scheme next to BarbicanThe first five-year phase of the project, which is being backed by a 191m grant from the City of London, is scheduled to open in time for the venues 50th anniversary in 2032.The project team also includes engineer Buro Happold and landscape designer Harris Bugg Studio.View scheme is scheduled to start construction in 2027