Oh, I see now. But does that work?
At first blush, it does. Reg. 1.266-1(b)(2) says
(2) The sole effect of section 266 is to permit the items enumerated in subparagraph (1) of this paragraph to be chargeable to capital account notwithstanding that such items are otherwise expressly deductible under the provisions of Subtitle A of the Code. An item not otherwise deductible may not be capitalized under section 266.
. After all, the interest and taxes to which you refer are expressly deductible under sections 163 and 164.
But then we see section 63(b), which tells us to calculate taxable income, for those who don't itemize, by using the standard deduction. Here's the exact language.
(b) Individuals who do not itemize their deductionsIn the case of an individual who does not elect to itemize his deductions for the taxable year, for purposes of this subtitle, the term “taxable income” means adjusted gross income, minus—
(1) the standard deduction,
(2) the deduction for personal exemptions provided in section 151, and
(3) any deduction provided in section 199A.
.
So one way to interpret all this is that, by claiming the standard deduction, the items you'd like to capitalize can't be, because not only are they not expressly deductible; they are expressly not deductible.