Pacha nightclub in Victoria Street has been ordered to keep its fun behind closed doors amid fears it could tempt addicts at a neighbouring drugs charity back into a life of excess.
Pacha nightclub wanted to use its rooftop terrace, which is currently being built, from midday to midnight on Monday to Friday.
But a charity which offers advice to drug and alcohol addicts and their families, Addiction Recovery Foundation (ARF), overlooks the roof garden of the nightclub, and objected to the plans in case clients were affected.
ARF's chief executive officer Deidre Boyd said: "It is not only detrimental to clients trying to recover from drug and alcohol problems, but many staff and charity trustees can also be in recovery.
"For any ordinary business, it is distracting to have an open-air rooftop nightclub opened from noon only a few feet away from staff desks, visible through the windows. For people trying to recover from the fallout of nightclubs, it is, at the very least, socially irresponsible."
Westminster Council refused to grant permission to the club, which has a capacity of 850 customers, at a planning meeting on December 18, stating that the terrace is not yet finished
In July 2008, the club was given permission to build the terrace as long as it was used between midday to 3pm, Monday to Friday, and between 10pm and 6am on Friday and Saturday nights.
A spokeswoman said: "This application was refused because the terrace has not been completed yet and the planning committee felt it was bit too soon to grant a second application."
A representative of Pacha nightclub was unavailable for comment. However the club's website states: "In the very near future Pacha will be opening a roof terrace which will give you al fresco clubbing like no other venue in London, which will also be complimented by fine furniture and lighting.
"Pacha operates a zero tolerance drug policy. Anyone found in possession of drugs will be immediately reported to the police."
