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Re: hillside construction costs

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Actually it could be more.   I was the SE on stabilizing a house in Diamond Heights.  I think the cost was around $900,000.  Had a good geotech but the initial excavation to rock was estimated at eight feet.   We designed for 12 feet but the final excavation to rock was around 25 feet.  Believe the adjacent houses on each side were also sliding so we had lot line retaining walls.  (It's on Gold Mine Hill - you might be able to see the configuration from the court road below.)   The house experienced Loma Prieta.  (Had some 36" diameter piers anchoring the house to the hill at the top of the slope.)

You really need to get a cost of just the fix or stabilization before you do anything else.   Unless the views are something to die for or a super "location location location", the client may change his mind.


On 2/11/2011 10:31 AM, David Topete wrote:
Oh yeah...  The hillside is sliding.  In my preliminary report, I've mentioned getting a geo report done.  I could imagine the hillside stabilization could be as much as rebuilding the superstructure.

On Fri, Feb 11, 2011 at 10:02 AM, Neil Moore <nma(--nospam--at)> wrote:
Start off with getting a soil report.   My experience is that the foundation may cost as much as the house.

Neil Moore, PE, SE, SECB

On 2/11/2011 9:55 AM, David Topete wrote:
Can anyone help me out with some general (overall) construction costs for wood frame structures on a hillside.  A client is asking for an "order of magnitude" cost estimate for an existing 1+ story wood building to (1) raze and rebuild, or (2) rehab.

This is in the SF bay area (Berkeley) with a total habitable area of about 2,400 sq. ft. with a wrap-around deck of about 1,000 sq. ft.  This is a park clubhouse, and not a residence, if that would make any difference.

Thanks in advance.

David Topete, SE

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David Topete, SE