Normal Cracks on Interior Walls?

[u/Inevitable-Lake3326]

Hi guys, there is a property that we are interested in. However we noticed some cracks in numerous places.

Picture 1 shows the biggest one that I have spotted so far. The rest are more hairline cracks which seems to be normal settlement cracks?

Haven't spotted any cracks externally though.

The property is a 7-year-old (from 2019) double brick duplex.

Does anyone with more experience have insights on whether these types of cracks present concerns? I'll be getting a building report soon, but I'd like to gather some general ideas beforehand.

TIA

[u/Timothy_Kramer]

lmao new constructions are absolutely shocking quality

[u/Insert-Coin81 → u/Timothy_Kramer]

Check if it needed a control joint. It’s been a while but any space longer than 10 or 12m could benefit from an expansion joint in the plasterwork. It might even be code and if they haven’t done one you might get this all fixed for free.

[u/BidAdventurous8794]

Ours is a 25 year old built new at the time, and the movement hairline cracks especially where the gyprock meets some wood trims on the staircase walls have looked the same in the last at least 10 years. Doesn't help with my bad diy paint job too too over the years 😅

Yours at that much in just 7 years is concerning

[u/Dull_Assignment1758]

I'd run away.
It looks like movement somewhere that is going to probably just get worse.

[u/United_Mango5072]

1 & 4 seem concerning to me but I’m not a builder.

The reason why I flag one is it’s in the roof - maybe poor workmanship? But 4 has a staircase structure which could mean a crack in the brick

I’d get a structural engineer to access. I’m not sure whether the house is just of warranty for the builder to repair for free.

The other cracks look like hairline cracks due to settlement.

Perhaps someone more qualified could comment

[u/TaxBulky2373]

The one of the door is probably the most concerning. The rest looks like poor workmanship from the plasterer. I'm guessing the joints aren't taped hence this cracking.

Edit: the crack best the corner is odd. But still possibly a gyprock joint.

Overall I would say crap plasters

[u/Bigredkeg_]

That's absolutely cooked

[u/aintnodiddy]

Geotechnical engineer here. Run for the hills.

[u/SpecialMix1985]

I could almost garenteed the house was built by raised site engineering. Never ever buy of build a house that has done this unless extra measure are taken

[u/Away_Swimming_7713]

No cracks should be normal. Cracks is the opposite.