The unbelievable incident happened during celebrations for the event known as “La Font de la Figuera” in Valencia.
The huge beast was being goaded by hundreds of bull-runners as part of the traditional festival which turns the streets into an arena where locals and tourists have to draw on their skills to dodge the bulls.
One man and his family were apparently watching from the doorway of their home alongside the route when a number of the revellers decided to take refuge in the property.
Unfortunately, the canny beast decided he would join them.
According to witnesses, the men tried to slam the front door shut but was unable to do so and the bull charged into the living room.
The animal is seen destroying furniture and various fixtures with its horns, including some bone china.
People in the house look on in disbelief as the bull stands still for several seconds and then backs himself out of the front door!
Despite the bull’s aggressive state and bulky weight, miraculously no-one was hurt and the people inside, including several teenagers, were able to watch from the balcony as the bull continued its run through the town.
The animal was in the living room for several minutes and caused considerable damage.
This was the third such incident in a week in Valencia where a bull has charged into a house. On one of them, a man was seriously gored and needed emergency surgery.