Devonshire House Mayfair W1J Timeline News and progress updates from Devonshire House new development in Mayfair W1J Post a new milestone BDG Sparkes Porter is advertising a 2nd-floor open plan 2,892 sq ft (268,78m2) office space to let. The office space, which is a part of the second floor, benefits... 11/11/2016 by Buildington