Cracks in walls queries

9 Jan 2021
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United Kingdom
Hi all,

I’ve recently bought a property, built in 1985, and whilst I had a building survey carried out prior to buying it, there was an element regarding the roof missed and so I wanted to gain some thoughts on areas of light concern regarding cracks in the wall.

I live in a block that is split into four so each person owns a quarter of the house, each corner say. One bedroom, bathroom downstairs, semi-open plan living space upstairs.

The previous owner lived here for 4/5 years before and had a fair amount of work done. I don’t know all the exacts but ceilings were plastered, downlighting installed, new kitchen, new bathroom, new doors and windows, new wardrobe having closed up a cupboard space. I don’t know for certain if walls were plastered/skimmed along the way.

There were a number of hairline cracks where the walls meet the ceilings that I haven't included below. But there are a few cracks of concern I wondered if anyone could further query me on or reassure/suggest further investigation on some.

Admittedly, I moved into the house and tried to fill cracks upon arrival but most have seemingly appeared again - being the small space it is, I imagine this could be heat related but if anyone has some advice on the below I’d really appreciate it.

Living Room, as I look out of the window (roughly south facing) the wall to the left of the window has this:


To the right of the window there are two cracks.

I've attached a video of what it looked like before my Dad and I started to try and "get rid" of them. But also the most recent pictures for reference. As yet the top crack hasn't reappeared - I'm imagining it'll only be a matter of time.
The second you can see they'd attempted to work on this before. I have since and whilst it's not as obvious as the previous owners attempt, it has reappeared as a hairline crack.
Top Crack:
Lower Crack:

To note, this crack (now filled) also appears in the window part but connects to the top crack:

These are upstairs whilst downstairs we have:

Bathroom - the only crack that I haven't worked on in any way and arguably, the widest one I see. This runs in line with the ceiling, and you can see the evidence of the vertical crack which appears on the other side too.

In short, is any of this to be concerned about? How I deal with it aesthetically isn't of importance if there's reason to be more worried about them in the first place. If there isn't cause for concern, I can think about making it "look" right then!

I realise there's a few things to look at here so thanks for any help in advance.

*To clarify, whilst there are these cracks around the inside space, I notice nothing to the outside brickwork.
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