As residents of a north side neighbourhood look back at the explosion that rocked their quiet street one year ago, many are constantly reminded of what happened that day.

On June 20, 2010, a home on the corner of 180A Avenue and 91A Street became filled with natural gas and exploded, causing $3.5 million in damages to the home and surrounding area.

Three people were killed in the blast, a fourth person was also found dead – but investigators found that person had been killed before the explosion.

It was so strong it pushed several homes off their foundations.

Remnants of the explosion still remain, with some of the 40 homes damaged in the neighbourhood still not repaired.

Mayor Stephen Mandel is aware of the delays for some homeowners.

"We're moving as quickly as we can," Mandel said. "There [are] issues of insurance and liabilities that have to be dealt with."

"We will try to push as much as we can."

Many residents in the neighbourhood told CTV News they would like to see construction completed on the three lots left empty by the blast – so the community can move on from the tragedy.

With files from Kevin Armstrong