Kocaev ranks as one of the main 18th century architectural examples of wall ornamentations, a kind of wall decorating method that holds a very special place within the history of traditional Turkish art.
Parts of the walls and spaces framing the windows are decorated with very special examples of traditional Ottoman drawings that are reflective of a certain period and style. The walls of the sitting rooms have been embellished with drawings of vases filled with various kinds of flowers, carnations, roses, poppies and leaves applied onto plaster, while the space near the door is decorated with panels of landscape views, views of Istanbul, drawings of mosques, towns and meadows. The wall above the entrance door is decorated with a bowl of fruit. The wall with the built-in cupboard has been subdivided by using five different decorative panels. While the panels at the two ends are filled with decorative floral ribbons, the three panels at the center are decorated with landscapes, with views of Istanbul with Leander’s Tower, Scutari and the shore of Tophane, while a town with a river crossing has been drawn on the panel at the right.