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Engineeered retaining wall - ~10 feet high

22K views 10 replies 6 participants last post by  quan  
#1 ·
Hi All,
We are about to purchase a house and requested an estimation on extra work required from the builder. The house, as is, has very small yard and we wish to have a bigger yard, leveled with the current small yard, and plan to use an engineered retaining wall in order to achieve this goal. The builder has plenty of excavated land/gravel to fill in the planned yard, basically from a neighbour lot.
We don't have the exact measurements , but based on the lot size - the wall will be around 100 feet long, and 10 feet high, more or less.
The estimation was shared with us and was also added to the overall house price. It is $35000, and seem outrageously high to us. The sales manager claims this is a risk, since the actual estimation might be higher, and he will also need to pay his engineer around 3K for certification.
Since additional lots have the same problem, the builder has done it before. I am attaching a picture similar to what the neighbours have in place.
Please help me to understand if the price is correct, and how complicated is it to do it ourselves after purchase - the permits, the fill, and the headache.
Really appreciate your help, Thank you!
Sam

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#2 ·
Go with terraces and multiple walls, and space for plantings, even if it is just 'Pompas Grass'... terraces have a better safety margin and looks much better than a huge wall of stone, brick or concrete...
 
#6 ·
Go with terraces and multiple walls, and space for plantings, even if it is just 'Pompas Grass'... terraces have a better safety margin and looks much better than a huge wall of stone, brick or concrete...
I would prefer this solution, but since this is the only place the kids will be able to roam outside - need a flat surface. Might consider later to cover the wall itself, or incorporate it in somekind of a green design, but do need the leveled wide yard...

Thank you for your advice!

Quan
 
#9 ·
A $35,000.00 play yard for kids,,, because they shouldn't have to play on a slope... an interestting idea,,, might be that the existing hillside would cause children to develop muscle tissue...
Of course the little butterballs are more likely to 'bounce' after a 10' drop-off, so I can see how this wall would be a 'safety feature'... :)
 
#11 ·
Hi All,
Thank you so much for your advice. After back and forth negotiation we reached a point when we insist on leveled yard, but the builder insists there must be some slope. Gave us two options, which one should we choose? Apr 5 or Apr 8? 2' vs 3' overall drop...
Is it true that the yard CANNOT be leveled and must have a slope for drainage???

Thank you for your help and time, we both really appreciate it!

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