Real Ghost Sighting Knaresborough

this is probably going back 20 years or so, but was definatly very spooky.
We lived on abbey road, which is an old road in knaresborough next to the river. One winters night around 10-11 pm we all returned home after a meal in harrogate. as we approached the house i noticed a man stood staring at the front door. My dad noticed him too and stopped as the man was stood in the middle of the road (abbey road is very narrow). The man/figure did not react to us stopping and watching him, he just walked straight towards the front door and dissapeared as if he walked straight through it. The whole family witnessed this. After parking up and a little freaked out my dad opened the door with a key and nobody had broken in and the door was securly locked. it was very strange. the figure was dressed in a short dark coloured wollen jumper and a sort of old maybe fishermans hat, we never saw his face but was of solid appearence, average height etc. he could not have entered the house, nor walked off in different direction.