In August 1778, the governor of Madras granted 43 acres for an estate to a civil servant, who, subsequently in 1793, assigned the grounds to a committee of 24 which then regulated the public amusements in the city.
In 1821, the committee sold the main house and central garden space to E. S. Moorat, an Armenian merchant who, in turn, sold it back to the government in 1830.
The government first used the buildings and the grounds as the collector's "Cutcherry" and later for the "Central Museum."
The museum was originally established in a building on College Road in Nungambakkam in the year 1851 and was shifted to the present site in 1854.

Many additions to the original building were constructed between 1864 and 1890.
The core of the old museum building includes the only surviving remnants of the Pantheon, identified from the broad steps leading into it when viewed from the north.
Amongst the additions is the Connemara Public Library, built with stained glass windows, ornate woodwork and elaborate stucco decorations, formally opened in 1896 and named after its progenitor.
The building was built by Namberumal Chetty and was designed by Henry Irwin, with the interiors resembling those of Bank of Madras (SBI).
The design included a huge reading room with a wooden ceiling between two curved rows of stained glass, supported by ornate pillars and arches embellished with sculpted acanthus leaves.
It was supplemented with teakwood furniture, marbled floor, and decorative windows.
All of these were restored in 2004–2007.
The building now houses the Old Collection (pre-1930), which is used for reference purpose only.

Both the museum and the library benefited greatly from the effects of the Madras Literary Society, the Oriental Manuscripts Library and the Records Office.
The museum houses a 19th-century theatre, with the "pit" meant for those who can afford more and seating for the rest of the audience in tiered-seats arranged in a semi-circle around the pit.
Restoration to mark the 150th anniversary of the museum replaced 25 fans with air-conditioning.

The museum's collections had its origin from a gift of a collection of 1,100 geological specimens by the Madras Literary Society to the Government in 1851.
The museum, the first government-sponsored one in the country, opened the same year on the first floor of the College of Fort St. George, adjacent to the Literary Society in Nungambakkam, with an exhibit of nearly 20,000 freely gifted specimens ranging from rocks to books.
These gifts were in response to a public invitation that did not have a cut-off date.
When the mounting collection of geological specimens threatened the stability of this first floor, the museum's first officer-in-charge, Surgeon Edward Balfour, who was then president of the Literary Society and serving the museum in an honorary capacity, suggested moving to a new building, which was materialised in 1854 with the move to the Pantheon.
A library and a reading room were provided for the public in 1859.
In 1864, an upper storey was added to the Pantheon in sympathetic style, giving the museum more elbow room.
The library got a new block, now known as the centenary exhibition hall of the museum after restoration, in the northwest corner of the Pantheon in 1876, with a lecture hall.
By 1896, there had been built new buildings for the museum (where the anthropological and arms galleries are presently located), the Connemara Library and the museum theatre.

The museum grounds also housed the first zoo of Madras in 1855, which was also established by Balfour.
A year later, it had over 300 animals, including mammals, birds and reptiles.
The zoo was later made a separate institution and was shifted to the People's Park in 1863 where it remained, not growing very much, till it was moved to its present location at Vandalur in 1985.

An official website for the museum was launched on 25 October 2001 after the government sanctioned ₹ 0.5 million in 2000–2001.
In August 1778, the governor of Madras granted 43 acres for an estate to a civil servant, who, subsequently in 1793, assigned the grounds to a committee of 24 which then regulated the public amusements in the city. In 1821, the committee sold the main house and central garden space to E. S. Moorat, an Armenian merchant who, in turn, sold it back to the government in 1830. The government first used the buildings and the grounds as the collector's "Cutcherry" and later for the "Central Museum." The museum was originally established in a building on College Road in Nungambakkam in the year 1851 and was shifted to the present site in 1854.
Many additions to the original building were constructed between 1864 and 1890. The core of the old museum building includes the only surviving remnants of the Pantheon, identified from the broad steps leading into it when viewed from the north. Amongst the additions is the Connemara Public Library, built with stained glass windows, ornate woodwork and elaborate stucco decorations, formally opened in 1896 and named after its progenitor. The building was built by Namberumal Chetty and was designed by Henry Irwin, with the interiors resembling those of Bank of Madras (SBI). The design included a huge reading room with a wooden ceiling between two curved rows of stained glass, supported by ornate pillars and arches embellished with sculpted acanthus leaves. It was supplemented with teakwood furniture, marbled floor, and decorative windows. All of these were restored in 2004–2007. The building now houses the Old Collection (pre-1930), which is used for reference purpose only.
Both the museum and the library benefited greatly from the effects of the Madras Literary Society, the Oriental Manuscripts Library and the Records Office. The museum houses a 19th-century theatre, with the "pit" meant for those who can afford more and seating for the rest of the audience in tiered-seats arranged in a semi-circle around the pit. Restoration to mark the 150th anniversary of the museum replaced 25 fans with air-conditioning.
The museum's collections had its origin from a gift of a collection of 1,100 geological specimens by the Madras Literary Society to the Government in 1851. The museum, the first government-sponsored one in the country, opened the same year on the first floor of the College of Fort St. George, adjacent to the Literary Society in Nungambakkam, with an exhibit of nearly 20,000 freely gifted specimens ranging from rocks to books. These gifts were in response to a public invitation that did not have a cut-off date. When the mounting collection of geological specimens threatened the stability of this first floor, the museum's first officer-in-charge, Surgeon Edward Balfour, who was then president of the Literary Society and serving the museum in an honorary capacity, suggested moving to a new building, which was materialised in 1854 with the move to the Pantheon. A library and a reading room were provided for the public in 1859. In 1864, an upper storey was added to the Pantheon in sympathetic style, giving the museum more elbow room. The library got a new block, now known as the centenary exhibition hall of the museum after restoration, in the northwest corner of the Pantheon in 1876, with a lecture hall. By 1896, there had been built new buildings for the museum (where the anthropological and arms galleries are presently located), the Connemara Library and the museum theatre.
The museum grounds also housed the first zoo of Madras in 1855, which was also established by Balfour. A year later, it had over 300 animals, including mammals, birds and reptiles. The zoo was later made a separate institution and was shifted to the People's Park in 1863 where it remained, not growing very much, till it was moved to its present location at Vandalur in 1985.
An official website for the museum was launched on 25 October 2001 after the government sanctioned ₹ 0.5 million in 2000–2001.
Government Museum, Chennai