The celeb pair want to build a two-tier outdoor space that balances beauty with security - as it is turned into an intruder-proof fortress hidden from view.
Recent photographs (above) of the site showed several diggers have been left abandoned in the garden, which is still a mudbath.
Last month they applied for permission to change the roofs on outbuildings from tiles to thatch.
But the delays have not deterred their big plans for the garden as they have hired Chelsea Flower Show winning gardener and landscape designer Marcus Barnett to transform the space surrounding the property.
Pictured: Plans for the orchard Since purchasing three disused listed barns for just over £6.15million in December from landowner Nicholas Johnston, an Old Etonian friend of Cameron, the Beckhams have spent a fortune on renovations and enlisted architect Michael Ergatoudis to turn it into one family home.
But restoration work on the property, set in acres of rolling countryside, has been delayed by a series of planning wrangles with West Oxfordshire District Council.