The Van der Woodsen penthouse, located at 300 East 55th Street as the Milan Condominiums, is not actually in the Upper East Side but is shown in the show as it is for the residence of the van der Woodsen family. The family moved back into the penthouse in season two, as it was undergoing renovations throughout the entire first season. The apartment was bought by CeCe Rhodes for Lily and William van der Woodsen when they were first married, for tax purposes.