A building inspector has ruled residents of a Saskatoon condominium complex that caught fire Thursday can't return to the building.

Fire crews were called to 1121 McKercher Drive just before 7 a.m. CST, and fought the massive blaze, which could be seen from several kilometres away, for about an hour.

Flames were coming out of the roof as firefighters pulled up, and it appeared the interior of the building was aflame as well.

Fire officials said two of the suites on the top floor sustained major fire damage, and four suites below them sustained water damage.

Assistant Fire Chief Glenn Ledray said water has seeped into the ceilings and walls of many units, raising stability questions.

"The people are going to be allowed to go back and get their things, but they think that they're going to have to do some repair work to the ceilings and the walls of the condo before they can allow people back in," Ledray said.

Both the Saskatoon Red Cross and Salvation Army have offered emergency housing. The complex's property maintenance company has also offered up empty suites to people who want them.

By 8 a.m., most of the flames were out. There police said everyone made it out of the building safely, however one resident was treated for smoke inhalation.

There are 24 suites and approximately 36 residents in the building.

The cause of the fire and extent of the damage is unknown.