Portland Towers

Portland towers are two former Aalborg Portland silos which have been converted into a BREEAM-certified office building in the emerging Nordhavn district of Copenhagen, Denmark. The conversion was completed in 2014 to design by Design Group Architects.
Sandkaj (Sand Quay) was built in connection with an extension to the Freeport of Copenhagen in the 1950s and 1960s. The silos were built in 1979 by Aalborg Portland for the storage of cement. They were converted into an apartment building by NCC Prpperty Development in 2013–14 with ATP Ejendomme, PFA Pension and Pensiondanmark as investors.
(Wikipedia)