The site at 81-87 Academy Street, Belfast, where Castlebrooke is proposing to construct 150 co-living units. The company behind the controversial former ‘Tribeca’ scheme in Belfast has confirmed plans for a 15-storey co-living apartment tower in the city’s Cathedral Quarter. Castlebrooke said its updated plans for Academy Street involve up to 150 units. Aerial view showing Castlebrooke's Academy Street development site (marked in red). CGI design visual produced as part of the application for 105 build-to-rent apartments on the Academy Street site.