Luck + rising market most likely.we managed to recoup the renovation spend
Empty the place - leaving basic furniture in place. Put a bedspread on the beds, & steam clean / scrub the place within an inch of its life. Remove the curtains, clean the windows.
Make sure you review the photos before they go online & the loo seats are down.
A good paint job can help speed a sale but a "slap on a gallon of white emulsion" job will look just that.