Sited on a narrow road dotted with bungalows, party's present office is a residential building owned by an NRI who let AAP use for a token monthly rental of Re1.
Until the AAP suffered setback in the just-concluded Lok Sabha election, its office and adjoining areas were abuzz with journalists and party workers.
Outdoor Broadcasting (OB) vans of TV channels used to be stationed there.
A party leader told IANS that the AAP's "official headquarters" at Kaushambi in Ghaziabad in Uttar Pradesh will also be merged with the new office in Delhi.
Interestingly, the urban development ministry had offered a choice of three plots to the AAP on the Mehrauli-Badarpur Road in south Delhi after it was recognised as a state party following its stunning debut in Delhi assembly elections last December.