Two years ago the congregation of St Hugh's Church in Crosby Row vacated its building to allow a new building to go up on the site.
For the past two years the congregation has been worshipping at the nearby church of St George the Martyr.
Now the new St Hugh's church, with 22 flats above, is nearing completion.
Before moving back to Crosby Row the congregation is inviting local residents to get in touch with suggestions for activities in the new community centre alongside the church. Both are to be open daily.
"It's a remarkable opportunity for the church and community to work together," says priest-in-charge Canon Bruce Saunders.
"We are particularly keen to offer support to families, children and young people in the neighbourhood and would be glad to hear from people with ideas (eg a parents' and toddlers' drop-in, a homework club, a Brownie unit) especially if they are willing to help turn them into realities."
• The flats above the new church are known as the Murano Building. Prices start from £445,000 for a one bedroom apartment and up to £750,000 for a two bedroom penthouse.