Core Development acquires, develops, and manages residential and mixed use properties in Philadelphia and the surrounding suburbs. With 300 units under management in the metropolitan area, Core Development is committed to providing exceptional value to our tenants. The business is centered around its CORE VALUES: SERVICE. We want everyone who walks through our doors to be glad they did. LOCATION. We build spaces that make people want to stay in; and we find locations that make people want to go out. STYLE. You only build something once. We work hard to make our buildings memorable. SUSTAINABILITY. We build to LEED standards, with a long-term, sustainable approach to building.