Yes, absolutely! Perfect space to create some storage. You can either bring in an electrician to run a cable to a lamp with a motion sensor and maybe install an outlet in case it's needed in the future. Or, a USB-C rechargeable LED lamp with a motion sensor works perfectly. Regarding ventilation, what do you have in the rest of your home? FTX? Exhaust air? Natural ventilation? As long as you’re not storing clothes that are wet/damp or items that emit an odor, you probably don’t need ventilation in that space.