A redesign should serve actual business needs. It is not a required purchase that proves the applicant’s knowledge.
Use existing relevant work where it explains the claim
Separate operational design expense from evidence preparation, translations and current government charges. A more expensive facility layout does not itself establish an L-1B qualification. Ask first whether current photographs, floor plans or process documentation already show the layout and equipment the specialized-knowledge claim depends on, before approving any redesign spending.
A facility changed to look more impressive for reviewers is not the same project as a facility changed because operations genuinely require it, and conflating the two risks paying for construction that adds little to the filing. Where an actual operational need exists independent of the petition, document that need on its own terms and keep its budget separate from evidence preparation, translation and professional review costs. Compare the price of a written explanation connecting existing equipment to the applicant's techniques against the price of altering the space itself, since the explanation usually costs a fraction of construction and often communicates the same point more directly.
Ask the employer to describe, in plain terms, how the current physical setup connects to the techniques or equipment knowledge the applicant is expected to explain, since that description usually costs far less than reshaping a workspace to match it.