It would be irresponsible for any Building Commissioner to issue a building permit for such a change, without a Plan, stamped by a Structural Engineer.
No credible Structural Engineer is going to stamp a plan, without an inspection to confirm the actual construction, is consistent with the original plans. In other words, you're not likely to get an Engineer's Stamped Plan, that isn't subject to verification that the wall in question, was constructed per original plan (inspection after demo).
That becomes increasing more complicated, with Tilt-Up Construction. One would likely have to produce the original 3rd party verifications on the concrete that originally went into the panels, along withe original Structural Engineer's certifications.
I'd budget a minimum of $7500 to replace a window with a slider in CMU home, $20,000 for a Tilt Up.
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"God made me and gave me the right to remain silent, but not the ability." Sen John Kennedy (R-La)
" ... and that Norm, is why some folks always feel smarter, when they sign onto TOTV after a few beers" adapted from Cliff Claven, 1/18/90
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