Candi Plaosan, also known as the Plaosan Complex, is a Buddhist temple located on the Prambanan plain. The complex covers an area of 2,000 square meters at an elevation 148 meters above sea level. The Dengok River is located about 200 meters away.

Plaosan temple was built in the mid 9th century by Sri Kahulunnan or Pramodhawardhani, the daughter of Samaratungga, descendant of Sailendra Dynasty, and who was married to Rakai Pikatan in the Hindu tradition. The Plaosan complex comprises two Buddhist temple areas, Plaosan Lor and Plaosan Kidul. The temples are separated by a road; Plaosan Lor is located in the North and Plaosan Kidul in the South.

The inscriptions and images of Plaosan Lor and Candi Kālasan, have raised questions about the origins of the complex and the relationships between the images found and the religious affiliations of the area when the structures were created.

Plaosan Lor consists of two main temples and an open area known as a mandapa. Both temples have an entrance, a gate, and a guardian statue known as Dwārapāla (Gate Protector).

The Plaosan temple complex is made up of 174 small buildings, 116 are Stūpas and 58 are shrines. Many of the buildings have inscriptions. Two of these inscriptions denote the temple as a gift of sanctuary by Rakai Pikatan. The dates of the inscriptions are between 825-850 AD. Although this is close to the Prambanan 856 AD date, the complexes are not related, as new building technique distinguishes Prambanan from the Plaosan temples.

The two main temples at Plaosan are made up of an upper and lower level, separated in three rooms. In the lower level, multiple statues resided. Today, there are only two statues of Bodhisattvas seated on the sides of each of the rooms, flanking an empty pedestal. The main statues today are missing, they were probably bronze statues depicting Buddha, and had the two stone Bodhisattva statues flanking it. Historians suggests that each of the main temples once contained nine statues, six stone Bodhisattvas, and three bronze Buddhas. This means there was 18 statues residing in the twin main temples.

On the upper walls in each rooms, there are the traces of stones indentions that once supported wooden beams and wooden floors, creating upper rooms. There are also traces of stones as the base of wooden stairs.

Rows of exquisite carvings of Bodhisattvas are found adorning the outer walls, with the majority of them being male. There are also a few female Bodhisattva figures carved on the walls.