Vincent Tabak has admitted killing Jo Yeates, the landscape architect who went missing on 17 December 2010 and whose body was discovered on Christmas Day.
Mr Tabak, 33, who is from the Netherlands, denied the charge of murder but confessed to manslaughter.
However the prosecution has declined to accept the confession of Mr Tabak and he will be tried for murder on 4 October.
Miss Yeates disappeared after having drinks with friends and buying a pizza from Tesco express before heading home to Clifton in Bristol. Her body was found in Longwood Lane, Failand. It later emerged she had been strangled.