Short answer
A cold storage expansion becomes a good business case only when commercial demand and daily flow fit together. Extra storage creates value only when inbound, stock status, order processing, energy, and labor can scale with it.
Storage is not the same as flow
More pallet positions do not automatically solve a capacity problem. If docks, staging, planning, or order processing do not scale, the next bottleneck is waiting as soon as the building opens.
Do not model only storage volume. Follow the pallet as well: from ASN and receiving, through storage and any QI hold, to picking, staging, and shipment confirmation.
Extra pallet positions do not help if trucks still wait at the same dock.
Door movements belong in the design
In cold chain, energy, temperature zones, and door movements are not a technical appendix. They affect cost, reliability, and the room to absorb a peak or temperature deviation.
Connect the expansion early to the working day: inbound windows, order cut-offs, cleaning, maintenance, loading plans, and the last moment a customer can still change something.
Put the difficult choices on the table
A usable business case also shows what is not decided yet: automation level, building height, phasing, customer mix, labor model, and how a failure is absorbed.
That is not weakness in the plan. It makes clear which choices leadership and operations still need to make together before construction starts.
Is the operation behaving differently from the plan?
I look at the actual flow: process, system, decision-making, and people. That is usually where the next move is.