Check out Sandy Smith's story in December's Philly Mag titled "The Case for Raising the Roof on Philly Rowhouses". Phil Katz from 3rd Story Philly was interviewed for this article. Here's a short excerpt.. "Developer Philip Katz even changed careers to build a business out of such transformations. In 2012, when kids were imminent, he and his wife decided to raise the roof on their Bella Vista rowhouse instead of moving. 'Six months later, we had 600 more square feet of customized space, two roof decks with spectacular views of the city, and a refinance appraisal that brought us $2 back for every $1 we put in'
Click here to read the full story.