The pilot was filmed a year before the rest of the series.
The Schinasi Mansion (351 Riverside Dr, New York, NY) is used as the outside of June's home. It was built in 1909 and is the last remaining single-family home in Manhattan.
The rooftop terrace is from a separate building in the Murray Hill section of NYC, the Windsor Tower (5 Tudor City Place, New York, NY) and is the terrace of one of the penthouses. However, the terrace was later re-created in a studio to save money and not regularly displace the residents of the penthouse.
The attic apartment gifted to Neal by June is actually a studio set and is not actually inside either the Schinasi Mansion or the Windsor Tower.
The rooftop terrace is from a separate building in the Murray Hill section of NYC, the Windsor Tower (5 Tudor City Place, New York, NY) and is the terrace of one of the penthouses. However, the terrace was later re-created in a studio to save money and not regularly displace the residents of the penthouse.
The attic apartment gifted to Neal by June is actually a studio set and is not actually inside either the Schinasi Mansion or the Windsor Tower.
The photo of Peter and Elle on vacation is really a photo of Tiffani Thiessen and her husband on their honeymoon; Tim DeKay's head is just Photoshopped onto Brady Smith's body.
The first scene Matt Bomer and Tim DeKay shot together was the scene in which Neal comes down the stairs and flips his hat on his head.
Neal's line in the car, "Call Dr Phil" after Peter insults him while they are talking about Peter forgetting his anniversary was ad-libbed.