Is this evidence of Subsidence

[stevire]

Are the following evidence of subsidence or some other type of structural movement? What is the best way to determine the root cause?

Majority of the cracks are external and quite small in width at the moment but concerning none the less.

Gable End of house:

GableEnd1

• stevire
• 16 Apr 2019

Same Gable end of house:

GableEnd2

• stevire
• 16 Apr 2019

Rear of the house:

Rear1

• stevire
• 16 Apr 2019

Opposite Gable end of house:

GableEndOppositeSide

• stevire
• 16 Apr 2019

Internal wall of house:

Internal1

• stevire
• 16 Apr 2019

 

[KenGMac]

stevire, good evening.

Picture 1 could be being caused by the lintel where there is a differential expansion between the concrete lintel and the main make up of the wall, the external render is suffering because of the different movements

Picture 2 has all the appearance of "Wall Tie Failure" where the original old iron wall ties rust / expand and a crack forms.

The picture Rear of house, appears thermal is the crack near the mid point of the walls length?

The picture opposite end could be a badly made of joint between two areas of cement render?

As for the internal crack? is it anywhere near any of the external crack damage?

Ken