Not by rule. E-2 requires treaty nationality, at least fifty percent treaty ownership, substantial capital irrevocably committed and at risk, a real operating enterprise that is not marginal, and an investor who will develop and direct it. Unfinished repairs can affect whether readiness and investment are adequately supported; the legal standards themselves remain unchanged.
Decide the filing date from the commitment evidence
Ask what a reviewer could see today: executed contracts, released funds, permits applied for, and a construction schedule with dates. If those exist, a pre-opening filing may be reasonable. If the repair scope is still being negotiated with the seller and the total capital figure could move materially, an early filing may present numbers that change before adjudication.
There is no fixed minimum investment and no guaranteed outcome either way. Identify who still holds the power to change your numbers. If the seller can yet refuse a repair, if the contractor's price is an estimate rather than a signed scope, or if a permit sits with an authority that has not responded, then the capital figure is not yours alone to state.
Filing while another party can still move the total invites an adjudicator to read a number that has since changed. Where those parties have signed and been paid, the figure becomes the investor's to defend, and the legal standards are unchanged by the state of the building: treaty nationality, the required ownership proportion, capital irrevocably committed and at risk, a real enterprise that is not marginal, and an investor who will develop and direct it.