Is it good news? They sell a bit of their property plan imo. Despite sold above book value this things are not always good. Because they have to invest another sum of money into new properties with all additional cost.
If the goal was selling this appartment for getting money because of liquidity needs, it is not so smart.
But i think it is not a major event.
The believers in this stock will probably be rewarderd within the next months. The sentiment for RAS is clearly improving.