Wish list: Sunroom/sewing room

Now that I'm sewing almost every day, the dining room has turned into my sewing room.  While Mr. H says he really doesn't mind, I would love to have a sewing room where I wouldn't have to put everything away every night, where I could put a spool holder on the wall instead of throwing them all in a plastic bin,where I'd have drawers for all of my fabrics instead of stuffing them into a bag each night.

We have a deck on the side of our house that we never use. It just gets way too hot in the summer and of course during the winter we don't go outside much. Here is what it currently looks like.

Here is the view from inside the house.

I think it would be perfect to enclose this area and turn it into a sunroom/sewing room!  Ever since I thought of this possibility, I've been obsessing over it.

I love these rooms:

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Of course there would be a sewing table in there along with all the other essentials!  Kind of like this room:

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The problem is we have a kitchen to renovate and a front porch to re-do so I'll have to try to figure out how to squeeze a sunroom/sewing room addition in there somewhere!