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Costs of Land with a large slope - 9 meter fall!

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I am interested in a piece of land in Fyansford Geelong, 1400SQM with a "too good to be true" price. I understand that sloped blocks come with increased costs to make the land suitable for a home, excavation, retaining walls, different support, etc.

But HOW much? How much would would you estimate putting an average 35SQM home, potentially a split slab separate living home would cost, or even compared to a flatter block.

My gut is feeling $150k-200k for landworks/fencing/retaining wall kind of costs, how far off the mark do you think I am? Is there anybody here with experience doing this.



https://www.realestate.com.au/property- ... 63bamBxUNU



All help is appreciated, don't want to make a life ruining mistake. Picture is standing at the back of the block, truthfully it probably looks less steep than it is, but ive given you the measurments of 9m fall + 4m(roughly) sideways.
Thanks!
Hi Trev,
20 years ago I built a custom home on a sloping block in Sydney, and spent 100k on retaining walls and piles under the slab before we even got out of the ground. Front 1/2 of the house incl triple garage was slab on ground, then we had split levels elevated to the rear built on poles. 4m elevation change from front door to back door. The pole work was so much cheaper than the concrete works. They came in with a bobcat and an auger, drilled a dozen holes in a day and concreted treated pine telegraph poles into them. then the timber floor was built on top of the poles (pole platform design). The concrete work took earthmoving equipment to cut the site, huge pile drilling machines like they were building a block of flats and big retaining walls - all this also needs lots of drainage. The pole section is elevated so drainage is much simpler and more sympathetic to the site. Find someone who specialises in sloping sites rather than trying to adapt a standard project home design. We designed our own house from scratch and the elevated sections were just so much easier and hence cheaper to build. With the right builder you can get terrific results and awesome views but be prepared to get fit from having lots of stairs inside.
good luck
I dont know what you guage as a "too good to be true price" but it might have something ro do with the fact that it backs on to the M1. You couldn't pay me to build there
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