Cost of poured concrete basement per linear foot ? (flooring, roofing, foundation)

[illtaketwoplease]

Is there a good rule of thumb to use for calculating the cost of a poured concrete basement per linear foot? 8' or 10' walls?

Know there are many variables but just looking for a ballpark to use when looking at houseplans.

Tks

[K'ledgeBldr]

That would be pretty much impossible; way too many variables.

Wall thickness
Brick ledge(s)
Step downs
Beam pockets
Angled walls (i.e., 45degree)
Footing size(s)
Rebar (size and quantity)

The majority of homes that I built over the years have been on basements- and no two have ever been alike. It could be the exact same plan/elevation, but because of the topo the basement wall configuration was different.

Also, concrete prices can fluctuate, but quantity discounts can help especially if you strike a deal with a company to supply all your concrete- walls, slab, drive, patio, etc.

[chet everett]

To add to k'ledge's excellent response I will add that if one is using "local cost per sq ft" type estimates it is foolish to try "back out" costs for things like a basement if they are generally "the way things are done" in your area and you think you'll "save" by eliminating a basement you might be unpleasantly surprised that costs for installing electrical systems/ plumbing / HVAC go UP with such a changes...

Perversely if you are in area where basements are uncommon it may be that costs for changing to a full basement (over a crawl or slab) will NOT go down for the mechanical systems...

The differences between a $200/sq ft avg cost to build home and a $300/swift home is likely NOT in the basement but in things like quality of windows, flooring, roofing & exterior...

Thing too is when it comes resale trying to sell a home that is "over built" OR "under built" compared to local standards is often a really bad idea. Folks will expect a big discount ...

[illtaketwoplease]

thank you for the replies.

maybe you could give me a range then of cost per linear foot. i know there are many variables, but i am just trying to work up a cost estimate ballpark right now looking at plans.

what would be a reasonable range for an "average" build? tks

[ChessieMom]

This might give you some ideas.

Cost of a House Foundation - Estimates and Prices Paid

[illtaketwoplease]

what a great site. thanks.