The Manor Ballroom, the Mill Ballroom and our smaller Capri Room. Total Venue space of 45000 square feet. The Felt Factory was carved from the walls and halls of the old Philadelphia Felt Mill, where the sounds of machinery kept the local neighborhood busy by day, and lulled them to sleep at night. Today the building lives again with a cast of dedicated professionals. The joyous noises that you hear are of music, laughter and celebrations of family, friends and the community. An industrial venue that is known for its commitment to quality, integrity, and service has grown into one of Philadelphia’s premier caterers.