Description of 31 Old Burlington Street
31 Old Burlington Street is a Grade I listed building in Mayfair, London W1.
The building was completed in 1723 and first occupied in 1724.
2016 March - Westminster City Council grants permission for demolition of plant storey at roof level, full height lift rear extension and three storey rear outbuilding. Excavation to rear of site and erection of replacement four storey rear outbuilding with five condensing units on roof, erection of extension at rear lower ground, to third floor levels, erection of secondary pitch to mansard roof inconnection with the use of the building as 5 x flats (Class C3). 
1. Westminster City Council Ref no 15/00287/FULL