They may be saying that you need piles because of what is called “the angle of repose”.If you have a pipe in the easement that is say 3 metres deep,the angle of repose is a 45 degree line taken from the bottom of the pipe towards your footing,and the footing needs to be below that line.So your footing would need to be founded at least 3 metres from the pipe,or be founded deeper, which is what the pile do.
$65,000 would buy a hell of a lot of piles.There are basically three types of piles.There are bored piers which mean drilling a hole to founding depth, putting in reo and filling with concrete.This would be the most expensive method.Then there are driven piles which can be timber or concrete,but for a ouse would more than likely be timber.They are just driven in tot he ground and the slab beams poured over them.The third type are screw piles.They are just like a big screw that are screwed in tot he ground with an excavator..These are the quickest ,easiest and cheapest way.I just had some done on a commercial project I am doing,and for around 140 piles we paid about $22,000,plus some re-engineering on the slab($800) and some additional rep in the slab ($12000).But remember that this is for a large commercial building,which is a little more heavy duty than a house.
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