All apartments have air-conditioning and automatic ventilation in bathrooms and kitchens. An air-fresh system has been installed in apartments in order to ensure constant airflow.
High-quality materials and world-respected brand products have been selected for the finishings and decoration. Floors are two-layer oak parquet. Windows are triple pane packages that provide excellent heat insulation and which muffle street noise. Windows have three opening modes.
The bathrooms have heated floors. Plumbing comes from top brands: DURAVIT and PAA, with HansGrohe water mixers. All apartments have built-in LED back-lighting and centred area lighting. An electronic system for reading utility service consumption metres is installed for each apartment.
Apartments have particularly high sound-resilience levels, both between apartments and between front doors and communal areas. Storage space for personal belongings, prams, and bicycles is provided in the complex.
A KABA master key system is installed for residents' comfort. Commax intercoms connect to each apartment, the concierge service, and the entrance. J5 has surface and underground car parks with ramps.
The complex comprises three buildings: two new builds and the third a renovated 19th century Art Nouveau building that was designed by the architect Florian von Viganovsky. J5 consists of 41 apartments with floor space areas of between 44 m² and 185 m². The apartments are light, with full-size windows. Most apartments have balconies or patios.
The elaboration of individual interior designs is offered to apartment owners and apartments with pre-developed design projects are also available.
The complex is a closed-type with 24h video surveillance.