Hi NSW
Looking at the extra pics I would suggest that the damage has been caused by the power cable either too tight over the years (I doubt) or simply a substandard bricking job on that front corner and the electrical cable catching the wind over the last 80 odd years. This seems to have pulled the whole corner brick work towards the road.
There is not just one crack but many cracks and I would doubt the stability of any of that brickwork.
No if's or buts as a first step I would move the electricity underground. This is achieved by installing a power pole on the corner of the block and then rerouting power from there. In this process they would also upgrade to power supply to the block, a minor advantage. I have used Budget power poles on a number of occasions for similar jobs. The last one was to move a 9 unit power board with a new underground power run for $8500. This was fire safety related.
http://www.truelocal.com.au/business/budget-power-poles/georges-hall
By moving the power cable you will at least have removed the pressure on the brickwork temporarily.
I personally don't think that the brickwork on the front corner should be saved. This has moved substantially and any fix in place will always be noticeable. The better solution is to peel all that front corner section following the lowest crack and relaying all those bricks.
That crack between the two windows looks like it has been worked on previously. This crack looks to be an expansion crack but really not sure as no longer in it's original condition.
Any lintels that are rusted need to be replaced immediately. If they are left the rust will swell and further crack the surrounding brickwork.
I would suggest that you make a list off all the building issues and then rate them on seriousness and start a plan to address them all over time.
My list would be
1) move the power cable
2) address the rusted lintels
3) concrete cancer
4) brickwork at front corner
Cheers
Looking at the extra pics I would suggest that the damage has been caused by the power cable either too tight over the years (I doubt) or simply a substandard bricking job on that front corner and the electrical cable catching the wind over the last 80 odd years. This seems to have pulled the whole corner brick work towards the road.
There is not just one crack but many cracks and I would doubt the stability of any of that brickwork.
No if's or buts as a first step I would move the electricity underground. This is achieved by installing a power pole on the corner of the block and then rerouting power from there. In this process they would also upgrade to power supply to the block, a minor advantage. I have used Budget power poles on a number of occasions for similar jobs. The last one was to move a 9 unit power board with a new underground power run for $8500. This was fire safety related.
http://www.truelocal.com.au/business/budget-power-poles/georges-hall
By moving the power cable you will at least have removed the pressure on the brickwork temporarily.
I personally don't think that the brickwork on the front corner should be saved. This has moved substantially and any fix in place will always be noticeable. The better solution is to peel all that front corner section following the lowest crack and relaying all those bricks.
That crack between the two windows looks like it has been worked on previously. This crack looks to be an expansion crack but really not sure as no longer in it's original condition.
Any lintels that are rusted need to be replaced immediately. If they are left the rust will swell and further crack the surrounding brickwork.
I would suggest that you make a list off all the building issues and then rate them on seriousness and start a plan to address them all over time.
My list would be
1) move the power cable
2) address the rusted lintels
3) concrete cancer
4) brickwork at front corner
Cheers