Forest are 15th in the league table at the moment with 24 points from 20 matches.
Dougie Freedman’s side are eight points above the relegation zone and seven points behind Ipswich Town, who are currently sixth in the standings and occupy the final playoff spot.
Lansbury, who joined Forest from Premier League giants Arsenal in the summer of 2012, believes that Reds can end the season in the top six of the Championship.
"I think with the squad that we have got, it is a great squad,” the 25-year-old told Sky Sports. “Obviously with the transfer embargo, we cannot buy any players, so it is that little bit harder as we can't boost our push for promotion with new players.
"But anything can happen in this league, we can put a run together and get into the top-six places. Anything can happen in the play-offs. Every young player wants to get back to the Premier League.”
Forest are not among the favourites to finish in the top six of the Championship this season, but their chances should not be written off completely.
The Reds have a good bunch of players, and if they can put together a run of positive results, then they could find themselves there or thereabout in the final weeks of the season.