Thiruvazhmarban temple covers an area of about and has a five-tiered gopuram (gateway tower). The temple in enclosed in a rectangular enclosure surrounded by granite walls. The central shrine houses the image of the presiding deity, Thiruvazhmarban in sitting posture. There is no separate shrine for his consort Lakshmi as she is believed to reside in his chest. Surrounding the presiding deity, the images of Saptharishis are present. The images of Rama, Lakshmana and Sita are located to the right of the presiding deity. The image of Thiruvazhmarban is made of a compound of lime and granite. The sanctum also houses the images of Vishwaksenara, Kulasekara Azhwar, Nataraja and Sivakami. The festival deity is made of panchaloha and all the ablution related worship practises are done only for festival deity. The shrines of Garuda, Anjaneya, Ramanuja, Vedanta Desika and Azhwars are found in the second precinct. The temple tank, Soma Theertham is located outside the main shrine. A hall named Kalyana Vimana Mandapa located near the tank houses paintings depicting Dasavatara, the ten avatars of Vishnu.