HOPES to redevelop an historic stately home's walled garden have been given the go-ahead by planning officials.

Staff at Castle Howard plan to build a garden shop, polytunnel canopy and pergola at the existing plant centre.

Despite concerns from English Heritage and the Society for the Protection of Ancient Buildings, members of Ryedale District Council's central area planning committee last night agreed to approve the application.

In a letter to the council, Jane Jackson, from English Heritage, wrote: "English Heritage has no objection to the demolition of the existing greenhouse, but it is disappointed to see that the proposed building form and structure is based on a standard horticultural system-build solution which does not appear to reflect the quality of design we would expect to see in this important setting."

But she said that they were in favour of the expansion project as a whole.

John Foxton, speaking for Castle Howard, at last night's meeting, said: "The present operation, although successful, needs new investment to sustain a viable, profitable business."

He promised a customer-friendly development which would work alongside visitor facilities and attractions already featured at the stately home.

"The old garden area and its history will still be very much in evidence, with behind- the-scenes tours for local garden groups."

Duncan Peake, the Castle Howard estate's agent, said in a report to the council that it was essential for the garden centre to be redeveloped to help further long-term projects at the house.

Coun Pam Anderson, who recommended the scheme for approval, welcomed the plans, which she said would have a clear positive impact on visitor numbers planning to travel to the area.

Updated: 12:28 Wednesday, February 12, 2003