Avon County Council was the county council

County council

A county council is the elected administrative body governing an area known as a county. This term has slightly different meanings in different countries.-United Kingdom:...

 of the non-metropolitan county of Avon

Avon (county)

Avon was, from 1974 to 1996, a non-metropolitan and ceremonial county in the west of England.The county was named after the River Avon, which runs through the area. It was formed from parts of the historic counties of Gloucestershire and Somerset, together with the City of Bristol...

 in south west England. It came into its powers on 1 April 1974 and was abolished on 1 April 1996 at the same time as the county. The county council was based in Bristol

Bristol

Bristol is a city, unitary authority area and ceremonial county in South West England, with an estimated population of 433,100 for the unitary authority in 2009, and a surrounding Larger Urban Zone with an estimated 1,070,000 residents in 2007...

 at Avon House

Avon House, Bristol

Avon House is an 18 storey building, one if the tallest structures in central Bristol, England. It was originally constructed for use by the former Avon County Council in 1969-72. When that body was abolished in 1996 the building was used by Bristol City Council staff for a number of years before...

 and Avon House North. It was replaced with four authorities: Bristol City Council, South Gloucestershire Council, North Somerset Council and Bath and North East Somerset Council.