Courtyards are private open spaces surrounded by walls or buildings. They are used in ancient and modern buildings alike for various reasons such as ventilation, lighting, etc. They offer air, light, privacy, security and tranquility which are very desirable in housing. They can be used for leisure or as a serviceable or working area, depending on its location. Many modern courtyards feature landscape elements such as trees, lawns, etc. to make the courtyard more alive. This gives a better connection between the outdoors and indoors making the space more lively and green.