Cornwall Council has given the green light to plans by the National Trust to create 10km of off road cycle trails at Lanhydrock near Bodmin.
There was strong opposition within the parish to the proposals, with residents fearing traffic congestion caused by an increase in visitor numbers would ruin the tranquil environment in and around the estate.
The local authority's Strategic Planning Committee approved the plans today which also include a new cafe and cycle hire business, plus more parking facilities.
The National Trust says the introduction of the cycling hub at Lanhydrock will provide additional facilities for visitors, give families a more varied day out, and provide a facility that local groups and schools can benefit from throughout the year.
The trust insists the cycle trails will be sympathetic to natural and archaeological features and have been designed to minimise impact on other woodland users.
Nick Lawrence, the assistant director for the National Trust said: "We are thrilled that we have been given the green light by Cornwall Council to improving our range of facilities and improve access at Lanhydrock, one of our flagship properties in the South West.
" This project is an absolute priority for the region; we believe it will offer significant local public benefit and the introduction of off road cycle trails will play a key part in our aim to get visitors outdoors and closer to nature."