Freedom Church has agreed to buy the listed building from C Le Masurier and the sale is due to go through the Royal Court tomorrow.
Pastor Tim Bond said that the building would be named Freedom Centre and would be a base for their 400-strong congregation.
However, he also stressed that the church was keen for all Islanders to use the facility, which will need an extensive refurbishment, and that any money raised by the centre would be put back into the community.
