Isn't it illegal for someone else's private CCTV to be viewing/monitoring someone else's property, or communal areas?

In England you are not supposed to have a camera on someone else's front door or window and if you do and complain it has to be moved but not sure what the rules are where she is as she not in UK.

Oh damn, yes. 

Yes, this is correct. I can take this up to the tribunal and lodge a complaint. I have the right to quiet enjoyment of the property I am paying for and I should not be watched, I am not doing anything illegal. I did speak to fair trading and they also confirmed it. I just don't know if it's worth me fighting for. The energy here is just bad and it will have a massive negative effect on my mental health. I have enough things depressing me already; the occasional bad clients/timewasters, narcissistic family, college assignments etc. Not sure I can willingly take on more stress.

The CCTV isn't necessarily pointed at my door. The cameras have a panoramic view. It's a bit difficult to explain the set up. But my door is in a dead-end of the street/cul-de-sac, next to the garage of the property with cameras.  The landlady kept repeating that the area is "exclusive" and neighbours have complained that I am bringing "unusual looking people around, people who shouldn't be here".  I have had a lot of scruffy-looking men book me here, but they were polite to me, paid my rate and did not bother any neighbours. If I could make them all turn up in suits, I would.

She also said that suggestions have been made about what is taking place in the apartment and kept pressuring me to "come clean". I didn't admit to anything. She said "neighbours are not stupid and they know things". Plus in all her years of renting the property out she has never had a complaint this serious, they really don't want me here.

I also changed the setup of the place when I moved in; I put my bed in the open plan living area. She asked about this as she was leaving and I told her that it's because the bigger room has better air circulation since it's open. Then she replied "that's a good reason actually, plus I am sure it makes things easier when you bring clients over, you can lead them straight from the entrance to the bed" in a very condescending tone.

RE; section 21- I am in Australia and they don't have that here.

OP; does the law in your country allow a landlord to kick you out because you have visitors? (or worst case scenario; being an escort -which both neighbours and landlady have no proof of-)? Have you checked that? ultimately your landlord is going to have to operate under whatever law your country operates under so she can moan as much as she wants but it all depends on the laws. A friendly visit to a real state lawyer to tell him the problem and seek advice (so that you know your rights and where you stand) would be a good idea. I had a friend who did that and it saved her a lot of problems. Your landlady might not renew you the lease but at least you'll be able to stay till the end of it and have enough time to look for a more suitable location with a better vibe.

I would stay as long as you can and save your six months money up and give her nothing.

If it were me, I'd just keep my head down, look for somewhere new, and move out in July when the lease expires. It seems pretty obvious she knows you're whoring from the apartment, which I assume is a breach of your rental agreement. I don't see the point of any legal aggro.

I hope she serves me the termination notice cause I will go without a fuss, I am tired.