At this time, you can see the best gallery of modern apartment design. This design might be very ideal for your Architecture. In addition, there are variations of apartments that you want to be conscious of, here are the more commonly found variants.
FGMF: Edifício residencial Tetrys Pompeia, São Paulo
This particular building is really interesting the composition of the raised square and rectangular window frames does not make the decorative construction to compact and jumbled but instead it adds to the shape and sharp geometric angles of the building.
Hospedería en Extremadura by HIC Arquitectura I assume that illustrator and acad was used to create this rendering. I chose it because I like how the actual architecture is fazed out and the exterior courtyard space is focused using color.