Residential and commercial building P 15 was designed as interpolated structure, with two-sided orientation, towards Porečka Street on the north-east side and towards the interior of the block on its south-west side.
Building is dominantly organized, by itsfunctional units, as residential building with large spatial and program capacity, in a way where urban housing function is grouped through dozens of residential units on all above-ground floors, while commercial function is provided on its ground floor via 2 commercial spaces.
In conceptual sense, there is a difference in architecture and artistic treatment of the facade assembly of interpolated unit on the frontal facade of the building in contrast to its courtyard facade, which, in addition to providing set, plan-based distances, additionally ensures representative appearance of the building and its premises, realized as luxurious residential structure in the wider city center.
Part of the building is designed with dominant glass surfaces combined with perforated metal panels in a lighter tone, while the rest of design elements of the building are placed in ventilated facade system in a dark gray tone.