1861 The earliest European settlers in Panchgani, under Mr. J. Chesson, opened negotiations with the Government for the purchase of land for a church and school.
1876 Mr. Samuel Brierly, late Headmaster of Bishop's School, Poona, opened a Boarding and Day School at "Elstow", Panchgani.
1891 The Diocesan Board of Education, Bombay, became interested and appointed the Rev. Burgess, Chaplain/Headmaster. School opened at "Preston", but closed soon after due to a lawsuit over the property.
1895 The Rev. R. Evans, DD, was appointed by the Diocese to receive the School in "The Ark".
1898 Kimmins Girls' School founded by Miss A. Emilie Kimmins. Boys and girls studied together.
1902 Miss Mary Ashlin donated a legacy to the Colonial and Continental Church Society, London. The Society interested itself in the School at Panchgani and decided to govern the School with a Committee of Management at Bombay. Classes held in the nave of St. Peter's Church under the Rev. J. Redman. Boys housed at "Enfield" and "Albert House".
1904 Boys' School separates from Kimmins School. Present school buildings opened by Richard Stanley Heywood, Bishop of Mombasa.
1911 Assembly hall erected. Opened by Sir George Clark, Governor of Bombay.
1914 Middle Dormitory built.
1921 Rhodesia House and grounds purchased by the school. Death of Miss A. E. Kimmins, Founder of Kimmins Girls' School.
1934 Reference library constructed.
1937 Swimming bath constructed.
1940 Junior class-rooms constructed.
1947 Principal – Mr. O. D. Bason.
1950 "Maycroft" equipped for use as a school hospital.
1953 New kitchen built with financial assistance from the Sassoon David Trust.
1954 The school celebrated its Golden Jubilee (1904–1954). The dining hall was opened by the Rt. Rev. W. Q. Lash, Bishop of Bombay and Chairman of the Board of Governors.
1958 The "Albert House" estate was purchased at a cost of ₹75,000.