From Tollboden, next to Oslo Central Station, you can take bus number 30 (towards Nydalen) to Dælenenga. Anker Apartment is located next to this bus stop.

Airport shuttles FB1 and FB5 will take you from Oslo Airport Gardemoen to Anker Apartment as well. Get off at Københavngata. This bus stop is about 200 metres from Anker Apartment.