I'm from a Catholic background - this is relevant in relation to my Granny's very creepy house as she was very religious. She had a small holy water font directly inside the front door. The holy water dried up every day.
When you went in her front door, there was a hallway with a separate bathroom door directly to your left with the door on the right leading to the sitting room and kitchen. Because my parents lived there when my two older siblings were small, as well as some of my father''s younger siblings, there was no lock on the bathroom door. My father, who doesn't believe in anything paranormal, learned to hate using the bathroom. A few times when he went to the bathroom, he wouldn't be able to pull open the door and he said rather than the handle being stuck, when he pulled the door, someone stronger on the other side was pulling the door back closed on him (my father was a really physically strong man due to the work he did). If anyone else used the bathroom, you would hear loud scratching and dragging noises, but when you went over the other side of the hall, no one else would have heard it.
If you made a cup of tea and left the milk out on the counter for a few minutes, it would go sour. The sitting room door would frequently burst open and smash against the wall. The bedcovers felt like they were pulled off you as you were sleeping, not just slipping off but being yanked off.
The worst part of her house was directly at the top of the stairs. Her hallway was always dark even in daytime and with lights on, bright paint, whatever. Her stairs were 11 steps, a tiny square landing, turn slightly onto 3 more steps. On the small square, she had placed a small table with a religious statue of Mary and a vase that she put fresh flowers into. Every morning, without fail, the flowers would be dead - I mean brown, bone dry, rotted flower-heads.
My parents saved really hard to get their own house as fast as they could when my oldest sister (who was 3 when they left) told them about the 'dark' man who came to sit on her bed every night and told her it was time for him to take her and my brother (he was nearly 2) away soon.
Soon after they left, my Granny was long-term hospitalised and her other children moved out. The house was rented out, but unsurprisingly, no tenants ever lasted more than a couple of months at most. The houses (a row of 4) were eventually pulled down and nothing has ever been rebuilt on the land.