An inquest into the death of a father believed to have killed his two young daughters and their aunt is expected to last seven days.

Bartlomiej Kuczynski was found dead in his home on the Queens Hills estate in Costessey on January 19 this year. He was 45. 

The bodies of his two young daughters, 12-year-old Yosita (known as Jasmin) and Natasha, eight, were also found in the property, along with their aunt Kanticha Sukpengpanao, who was 36. 

Initial police investigations into the shocking incident resulted in the understanding that Kuczunski had killed his daughters and sister-in-law before taking his own life.

But inquests into the circumstances surrounding the deaths of all four family members have been scheduled to be held next summer.

Yosita (known as Jasmin), 12, and Natasha, eight, were found inside the property  (Image: Facebook)

The cases were mentioned at Norfolk Coroner's Court on Thursday, October 31.

During the short hearing, which lasted around a minute, assistant coroner Johanna Thompson confirmed that the father's inquest was due to be held from June 2 next year.

She added that his inquest is expected to last for seven days.

Mrs Thompson then added that a separate inquest for the two girls and their aunt would follow, to begin on June 11.

The inquest for the three victims is expected to last for three days.

Mrs Thompson also confirmed that preliminary hearings relating to all four of the deaths would be held prior to the inquests.

These will be held at 2pm on March 10 and 10am on April 23 respectively.

She said: "Further evidence is awaited as this is an ongoing enquiry."

The incident has already sparked questions about the mental health care Kuczynski received in the weeks and months leading up to the tragedy.

It has also seen scrutiny placed on the handling of a call he made to the police on the day of his death, which saw Norfolk Constabulary refer itself to the Independent Office of Police Conduct.