The first traces of life in Planoise date back to 3000 BCE, during the Middle Paleolithic era.
Objects were found in the Epoisses area during archaeological excavations, including a flint point dating to the Middle Paleolithic, three bracelets dating to the end of the Iron Age (500 BCE), and an oil lamp dating to Hellenistic Greece (between the first and fourth century BCE.)
The objects are conserved in the Musée des Beaux-Arts et d'archéologie de Besançon (Museum of Fine Arts and Archeology.)

During the 13th century the territory of Planoise officially became part of the Imperial city of Besançon, according to Jean de Chalon (earl of Bourgogne).
In the 15th century the clergy of Besançon bought the territory and the hill of Planoise.
The name "Planoise" first appears officially in records in 1435.
The name comes from the Latin word "planesium", which means "plain."
At that time, the sector consisted of a large wood and had few inhabitants, mostly farmers.

Between the Middle Ages and the modern era, the area continued to be almost uninhabited.
It was an agricultural area, farming mainly potatoes.
The prince of Liechtenstein wanted to take the city of Besançon in 1815.
He sent an army, which was stopped at Planoise.
They abandoned their plans to take the city.

At the beginning of the 20th century, many farms were built in the area.
As the population grew, agriculture became a major sector of the economy.
The First and Second World Wars did not have a big impact on Planoise, although an American soldier was killed there.
At the end of the 1950s, Planoise become a new urban area of Besançon.

Construction began in 1962 on 13,000 new dwellings in Planoise, and continued until 1985.
The first inhabitants settled in the new buildings in 1968.

At the beginning of the 1970s, the first shops were under construction, and the church of Planoise was built in 1972.
Soon after, Diderot school was built and the Cassin sector expanded.
This period is known as the "golden age" of Planoise.
In 1977 the population was 12,000 inhabitants.

Like other areas of France at the time, Planoise came into economic and social difficulties.
Since 1985 the area has been classed as a "sensitive urban zone" by the municipality, and 40% of the inhabitants aged 18–25 years are unemployed.

In 2005, during the 2005 civil unrest in France, the "Forum" building was burned.
Salah Gaham died in the fire.
A policeman was attacked in the Cassin sector in 2009 who was attempting to stop a riot, and there was a hold-up of a bus at the Planoise bus stop in 2008.
This followed many strikes by the bus conductors of Besançon public transport.

To stop the civil unrest in Planoise, the municipality tried to react promptly by opening a commissionership in Cassin sector.
However, it was burned in 2007.
Police presence has been increased in the area.
Since 2000, an area of the neighborhood was classed as a "zone franche urbaine" (exoneration of taxes for new firms created over the following 10 years), which has enabled the establishment of many new companies and businesses.
The first traces of life in Planoise date back to 3000 BCE, during the Middle Paleolithic era. Objects were found in the Epoisses area during archaeological excavations, including a flint point dating to the Middle Paleolithic, three bracelets dating to the end of the Iron Age (500 BCE), and an oil lamp dating to Hellenistic Greece (between the first and fourth century BCE.) The objects are conserved in the Musée des Beaux-Arts et d'archéologie de Besançon (Museum of Fine Arts and Archeology.)
During the 13th century the territory of Planoise officially became part of the Imperial city of Besançon, according to Jean de Chalon (earl of Bourgogne). In the 15th century the clergy of Besançon bought the territory and the hill of Planoise. The name "Planoise" first appears officially in records in 1435. The name comes from the Latin word "planesium", which means "plain." At that time, the sector consisted of a large wood and had few inhabitants, mostly farmers.
Between the Middle Ages and the modern era, the area continued to be almost uninhabited. It was an agricultural area, farming mainly potatoes. The prince of Liechtenstein wanted to take the city of Besançon in 1815. He sent an army, which was stopped at Planoise. They abandoned their plans to take the city.
At the beginning of the 20th century, many farms were built in the area. As the population grew, agriculture became a major sector of the economy. The First and Second World Wars did not have a big impact on Planoise, although an American soldier was killed there. At the end of the 1950s, Planoise become a new urban area of Besançon.
Construction began in 1962 on 13,000 new dwellings in Planoise, and continued until 1985. The first inhabitants settled in the new buildings in 1968.
At the beginning of the 1970s, the first shops were under construction, and the church of Planoise was built in 1972. Soon after, Diderot school was built and the Cassin sector expanded. This period is known as the "golden age" of Planoise. In 1977 the population was 12,000 inhabitants.
Like other areas of France at the time, Planoise came into economic and social difficulties. Since 1985 the area has been classed as a "sensitive urban zone" by the municipality, and 40% of the inhabitants aged 18–25 years are unemployed.
In 2005, during the 2005 civil unrest in France, the "Forum" building was burned. Salah Gaham died in the fire. A policeman was attacked in the Cassin sector in 2009 who was attempting to stop a riot, and there was a hold-up of a bus at the Planoise bus stop in 2008. This followed many strikes by the bus conductors of Besançon public transport.
To stop the civil unrest in Planoise, the municipality tried to react promptly by opening a commissionership in Cassin sector. However, it was burned in 2007. Police presence has been increased in the area. Since 2000, an area of the neighborhood was classed as a "zone franche urbaine" (exoneration of taxes for new firms created over the following 10 years), which has enabled the establishment of many new companies and businesses.
Planoise