Senior officers at Bristol City Council are facing more job cuts in another drive for efficiency.

Second-tier staff – paid £61,860 to £78,473 a year – will see their numbers reduced and roles changed, following changes earlier in the year after a chief executive Jan Ormondroyd was appointed.

Mrs Ormondroyd and the council's Labour leadership are steering through a top-to-bottom transformation of the authority's operation.

Up to 450 of the council's 16,500 full-time and part-time jobs will go.

The authority says its aim is to work better, meet people's needs and save £17 million a year and claims there will be a multi-million-pound windfall as 35 of it's 52 office buildings are sold.

The Labour cabinet is being asked next Thursday night to agree to restructure the council's second tier of senior officials.

The number of "service director" posts would be cut from 31 to 25.

The council said roles would change and some new ones created.

In most cases officers will get the first chance to apply for one or more of the new posts before other applicants are considered.

Interviews are scheduled to take place in January and new or retained officers will be in place soon afterwards.

The upper limit on pay will rise to £87,072, depending on the nature of the job and the difficulties involved.

But the cut in numbers will save the council about £640,000 a year, which it says will be channelled back into frontline services.

Extra costs for redundancies and pensions will become clear later.

The aim of the project, according to a report to the cabinet, is to help Bristol City Council become a top-rated (four-star) authority.