Hi, how are you? We can design you 4 level building without any problem, just give us a chance. A lot of buildings, mostly houses are built from our designs. As final output, you will have very nice photo realistic renderings (images) of your building, with facade previously designed from our side. We are team of only regular degree and master degree architects and great, very experienced designers with experiences in practice since 2006. You can find many exterior design projects similar to your in our portfolio. All our drawings are made in AutoCAD, 3ds Max, Vray and Photoshop. I invite you to have a chat with me to discuss your project (if i work at the moment please have patience, will be with you soon). Best regards! Boris from Novi Sad