All that matters is that there are enough places to hide.
If there are other people in the house while you’re playing, you can either restrict your group to one area or simply do your best to work around them. If you’re afraid of getting hurt in a dark house everybody could have flashlights and when you find the person remember to turn your flashlight off and don’t make a sound. You can also play another version where all lights are on, and the hunted hides in plain sight, but in a tiny space.
You can try hiding under a table or a bed, in a closet under piles of clothes, in a pantry, a spacious cupboard, even in a doghouse if you find one. Just keep in mind the other people who will be forced to hide with you. If you’re the hider/hunted and don’t like your hiding place you are free to move. However, be aware that you have to be very fast and sneaky if you hear footsteps.
Make sure that everyone looking works as individuals, there are no teams in this game. When trying to find the hiding person/group feel your way through the house with your hands since you can’t see. Or, if you are worried about breakable objects or bones, give each participant a small flashlight to help them find their way. The flashlight should be used only if necessary and turned off again after overcoming any obstacles.
If you’re the last person to find the original hider and everyone else, you become it for the next game.