It is within what was the Larkhill Golf Driving Range at Larkhill which is now being built over.
Details of the planning permission is at
As to what what the hengiform is, we will have to wait for the reports.
The planning statement: https://www.sarsen.org/2019/07/golfhenge-planning-statement-extracts.html
As it is today - from https://apps.sentinel-hub.com/sentinel-playground/