The family of a boy who died after falling from Tricorn House are calling for urgent action to make the building safe.
North Vernon-White, 15, suffered fatal injuries after falling off the roof of the derelict building near Stroud on Friday.
His family now want the eyesore on Westward Road to be made safe.
North’s father said: “The person who owns the building has not ensured it is safe.
“He’s left a derelict eyesore that’s dangerous.
“Everyone hangs out there. Nothing has been done.”
North’s family, who live on Westward Road just a few minutes from Tricorn House, have since visited the site and said it was still as easy to gain entry to as it was when North did two days ago.
“I could have gone into that building the same way North did,” his father said.
“Why has no-one done anything?
“It needs to be sorted. We all drive past every day with a blind eye.
“It’s breaking and entering I get that. But they are kids, they are bored. There is nothing to do.
“But if they can’t get into the building nothing will happen. It’s just common sense.
“I don’t even care if it looks the same. Just stop kids getting in there.”
Tricorn House, the former Department of Health and Social Security office, has been empty for more than two decades.
There have been many plans to redevelop the site over the years, but none have come to fruition.
Stroud District Council attempted a Compulsory Purchase Order in 2008 but were unsuccessful. The building remains in the hands of Millville Limited, a Guernsey registered company, which bought it in 1996.
Flowers have been left outside the building following the death of North, a Year 10 student at Archway School in Stroud, who also worked for the family business.
Paying tribute to his son, North’s father said: “North loved people. He loved life, he was a character. He was 100 per cent all the time.
“He was the life and soul of everything. Everyone loved him.
“All of us now have to live with this hole.
“We couldn’t have asked for a better son.”