Mayfair Park Residences Mayfair W1K Timeline News and progress updates from Mayfair Park Residences new development in Mayfair W1K Post a new milestone Triplex penthouse completed Contractor Walterlilly has completed a fit out of a luxurious triplex penthouse at the newly developed Mayfair Park Residences. Working on site beside the base build... 14/09/2021 by Buildington Mayfair Park Residences residential development in Mayfair, London W1 - new on Buildington! 14/03/2016 by Buildington