My ideal studio would definitely be much larger than what I have now. Simple, minimalist, green design. Great natural light. Big sink. Big work table. Big wall. Whitewashed. A place where paint can be spilled, nothing fussy.
The building is old and charming, and by the time I climb the four flights of stairs, I feel that I have entered a calmer environment. No matter what is going on in my life, I always walk into my studio space feeling relieved to be there.