Exact measurements of the room (length, width, and height), including doors, windows, and any other features that need to be considered.

Any preferred or existing color palettes for the room, or a general idea of the mood they wish to create (e.g., bright and airy, dark and cozy, neutral tones).

A budget range for purchasing new furniture or accessories for the space.

What the room is used for (living room, bedroom, office, etc.) to ensure the design is functional.