"We plan to build add another 30,000 sf on top of the existing 10,000-sf historically certified single-story shell next to the PECO building," he says. "We're marketing it as a build-to-suit for lease or sale. The 'as is' selling price for the shell is $1.5 million," he says. "A buyer could redevelop and expand it themselves or contract with us to do the work. At today's prices, the rent rate would be $25 per sf."

Currently, both properties carry the same 2501 Seaport Dr. address. The larger, completed building, "including contracts out for signature," Kelley says, is 94% leased at a rental rate of $21.50 per sf.

The newest tenant is Dusseldorf, Germany-based SIG Combibloc Inc., an international provider of packaging solutions. It signed a lease for 11,979 sf for the relocation of its US headquarters from the Midwest. John Morrissey of Philadelphia-based Jackson Cross Partners represented the tenant in the negotiations. Ina Sargen of Wilmington, DE-based Buccini/Pollin represented the owner.