There will soon be a new par for excellence along the park. Zero Marlborough, one of the city's poshest new luxury buildings at, you guessed it, Zero Marlborough Street in the Back Bay, is scheduled for a fall completion. Although many units, including the expansive penthouse, went under-agreement in 2007, sales have slowed. There are still some fantastic units available, including Units 6 & 7. Both 3 bedroom homes feature stunning views of the Boston Public Garden and valet garage parking. Unit 6 is available for $4.73m, and unit 7 is available for $4.765m. Be a part of Boston's most prestigious address.