Sansad Bhavan Delhi was originally designed as part of Rashtrapti Bhawan, but after Montague-Chelmsford reforms were implemented in 1911, it was completed as an autonomous edifice for India as Sansad Bhavan. It was declared that it will serve as the Indian parliament. The building is constructed in Italian Renaissance style and its construction started in 1914 and finished in 1918. It has been listed as a heritage site by the Government of India. Nowadays, Sansad Bhavan houses the national legislature of India, the Lok Sabha. The President of India addresses the joint session of the Parliament from this building on the last Thursday of January every year. It is also the official residence of the Prime Minister of India when he or she is not at his or her private residence, "Namarutham". The total area of the complex is about 7 acres (28,000 m²). Inside the complex are many halls used for various purposes like voting, debates etc. There is a large open air stage where major political events are held. On the eastern side of the complex is an 800-year-old banyan tree called "Bhawani Mandir" which covers an area of about 10,000 square feet (900 m²). Sansad Bhavan was built at a cost of about INR 14 million ($200,000) then.