BNPS.co.uk (01202 558833)
The earth covered barrow contains 400 niches for families to reserve at £2000 to £7000 a plot.
Building boom after 4000 years - Neolithic barrows are being built again as burial mounds for modern Britons.
Prehistoric tombs used to store the ashes of loved ones are being built on UK soil for the first time in thousands of years.
Until now Neolithic earth mounds built over the dead, known as long barrows, had not been used since around 2,000 BC.
The limestone frame covered in soil and grass was entirely handmade by a team of four stonemasons using traditional techniques over the course of five months.
The firm will be selling 400 plots, or niches, near St Neots, Cambs, for between £1,950 and £7000.