FIRE crews tackled an inferno at the development of the second campus.
A fire broke out on the fourth floor of the nine-story accommodation block to house students from September 2015.
Fire crews were called at 1045 on Friday morning and 15 firefighters tackled the blaze.
Black smoke poured from the building and was visible for miles.
A Mid and West Wales Fire spokesperson said “It looks like crews got it under control quickly. All persons were accounted for”
Swansea University tweeted earlier, in response to a comment on the social network “small fire on the construction site, quickly put out :)”
The university also tweeted at 1150 that the fire had been extinguished.
The five new students’ union officers visited the site last week as construction continues ahead of the opening date in a years time.
Swansea University were contacted for comment.
The cause of the fire remains unknown and is being investigated.