. >> the man behind this church makeover is philadelphia-based real estate developer alan barzilay, who is spending $10 million on the project. >> this is the very top of the worship space. >> absolutely. this is the second story of the bilevel apartments and you can see the amazing arch details of the ceiling that goes throughout. >> barzilay is not alone in doing this kind of work. churches have been turned into swank single family homes, stores and commercial spaces. even a brewery and pub. in philadelphia, barzilay thinks the property possibilities are endless because of the stock of old and abandoned houses of worship in the city. >> they have to be of scale. they have to have good locations. you have to have a community that's working with you. because they're very challenging, but it's a niche that we are specializing and this is the first of many churches that we are currently examining to redevelop. >> but sitting with me in a grand downtown philadelphia church, bob jaeger has ambivalent feelings about some church conversions. >> condominiums tend to cut up the space. you know,