Cities
The goal of most office relocations is simple: nobody should notice a business day was lost. That means the plan has to start well before the actual move weekend.
Inventory everything by department, not just by room. Label each desk, cabinet and equipment rack with both its current location and its destination — this is what lets a crew set up a new office in the right layout on the first pass instead of guessing.
IT equipment needs a separate plan from furniture. Back up critical data before moving day regardless of how carefully equipment is handled, and have your IT team (internal or contracted) ready to reconnect servers and networking gear as soon as it's placed at the new site.
Schedule the physical move for a weekend or after-hours window, and plan a soft-start Monday — expect the first few hours back to involve minor troubleshooting (a monitor that needs a cable, a printer that needs network reconfiguration) even in a well-run move.
Communicate the plan to your team at least a week ahead: new address, new desk assignments, and what they should personally pack versus what the moving crew will handle (usually anything left on or in a desk at day's end).
If a full shutdown isn't practical for your business, ask whether a phased move — department by department over consecutive weekends — is workable instead of a single all-at-once relocation.