This one-of-one Back Bay penthouse presents a rare combination of scale, privacy, and design. Spanning the top two floors of a corner, boutique building, six thousand one hundred thirty-two square feet is framed by thirty-eight windows on three exposures with sweeping Charles River, skyline, and sunset views. Designed by Eric Roseff, the residence offers direct elevator access from three garage spaces, a grand duplex layout, and private internal stair. A suburban-scale kitchen anchors expansive living spaces seldom found in the city. The rooftop retreat featuring pool, spa, fire pit, outdoor kitchen, and landscaped green roof offers exceptional privacy with no adjacent terraces. A primary suite with fireplace, dedicated office suite, and flexible layout complete this exceptional trophy-caliber offering.