The site of Sirkap was built according to the "Hippodamian" grid-plan characteristic of Greek cities. It is organized around one main avenue and fifteen perpendicular streets, covering a surface of around 1,200 by 400 meters (3,900 ft × 1,300 ft), with a surrounding wall 5–7 meters (16–23 ft) wide and 4.8 kilometers (3.0 mi) long. The ruins are Greek in character, similar to those of Olynthus in Macedonia.