my main sewing area is called "upstairs". DH and I have a half story above part of the house, and I use all of it.
The building the LA is in is called Quilt Shed/Machine Shed. The LA is on one half of the building, and my vintage sewing machine collection is on the other. I think I've about 100 machines out there, so Machine Shed is fitting. Since we have an old farm, we also have the Tractor Shed, Skidsteer Shed and Boat Shed (though we sold the boat several years ago). Yup, real creative with names on this place!