Here has almost 20 urban vectorial illustrations with multiple styles and different color matching. In these little buildings, you would find some images from famous cities around the world. It’s inspiriting! You should try create your own street blocks.
Most vectors and resources are free for download and ONLY personal use that some of them even allowed commercial purpose. NOTICED, not all files have permitted rights for commercial purpose. Suggests you confirm license on original website before any editing, modification or attributing.