A Hobart court has heard more charges are being laid against a man already accused of child sex and pornography offences.

The 61-year-old already faces 18 charges including indecent assault, sexual intercourse with a person under 17, aggravated sexual assault and producing child exploitation material.

It is alleged he sexually assaulted three boys at a Lauderdale property between 2011 and 2013.

The Magistrates Court in Hobart has heard police will lay a further five charges relating to acts allegedly committed between 2007 and 2008.

The prosecution told the court police would also interview more alleged victims this weekend.

The man, who has been in custody since his arrest in early May, had intended to apply for bail this morning.

But Magistrate Olivia McTaggart adjourned the matter until tomorrow so he can enter pleas to all charges.