Nobody knows for sure but it is estimated that it was built over several centuries.
To build the whole of Stonehenge will obviously depend on how many people there was for the task. What we suggested was that, given a great concentration of effort, is the sarsen structures, the biggest bits of Stonehenge, could have been built within a period of three years. We suspect that probably it took longer. There is the opinion that Stonehenge was constructed in sections over a period of time that span as many as 300 to 500 years.
It was built about 5000 yrars ago so nobody knows.
14
It took 8 years to build the White House.
10 years
14 years
10 years
to many years to count
It Took 14 Years
it took 5 years
10 Years
about 50-70 years