BLUE BELL, PA — Keystone Property Group has sold 4 & 5 Sentry Park in Blue Bell. The buildings comprise 196,273 square feet and were 93% leased to 23 tenants at the time of sale. Since taking ownership in 2013, Keystone Property Group deployed nearly $5 million in capital upgrades including significant functional and cosmetic upgrades to transform the office park into a state-of-the-art commercial facility. The enhancements include: a new first-class amenity area with a fitness center, conference rooms, a lounge area and an onsite grab-and-go; a new outdoor patio with seating; a roof deck; an expanded entrance for the property’s eastern building, 5 East, including a new curtain-wall façade and two-story atrium lobby; a refreshed lobby at 5 West; and significant upgrades to the property’s landscaping. “The campus at 4 & 5 Sentry is a perfect example of Keystone’s core mission of transforming outdated suburban office properties into dynamic commercial destinations where modern companies can thrive and succeed in the 21st century,” said Rich Gottlieb, president and COO of Keystone Property Group. “We are extremely proud of our work at this complex, which has allowed us to continue meeting our ultimate goal – creating value for our investors and ensuring the vitality of Philadelphia’s office market.”