In the crypt of Mayfair’s St George’s Church, Undercroft was supposed to have marked Carter’s debut in the capital.
No reason has been given for Carter - who attracted a Michelin star for his cooking at his now closed Carters of Moseley restaurant - disassociating himself with the project.
The creation of music industry entrepreneur Martin Priestnall, the 107-cover Undercroft had been set for a summer launch.
It is understood that the significantly delayed project has been delayed further and now may not go ahead.
“Sadly my London debut is on hold. As of today, I will no longer be part of the Undercroft,” Carter says. “I was genuinely very excited about this project, having first seen the space in 2022.
“We built an incredible team of people and suppliers to which we are very grateful for the support.
“My ambition to bring my food to London remains my main focus and the hunt is now on to find the right creative space for myself and my team. I’d like to thank all those who supported me on this.”