Folding screen! Or curtain mounted to the ceiling that can be pulled back/aside and still look cute.

Or hanging room dividers.

this is hilarious--we have the same exact problem. We were keeping our stroller in the lobby of our building but got chastised by other tenents. The condo board got involved and designated a little area for "Olivia's Stroller Parking." She's the only tot in the building so we had a bunch of people sticking up for us.

will it fit in a closet or behind a piece of furniture?

there was a post here a while back about hooks that go over a door...you would still see it, but at least it wouldn't be in the middle of the room!

I like AndreaU's comment about the hooks. That is how we store our stroller. We fold it up and hang it on the back of the front door. Works great!

http://metrotots.com/

here is the site

We roll ours behind the play kitchen.

A big plant if nothing else works.

Our stroller is permanently stored in the trunk of the car. We live on the third floor of an apartment building and it's too heavy to haul up to our place every time we take a walk. I know this may not be an option for everybody, but it's working for us.

We also keep it in the car all the time. Before we did that it sat right next to our dining room table which was very classy. Sadly there is no room in the closet because of the old bucket seat and baby swing taking up space.

I have the same stroller and it is not that easy to fold up especially if you keep a lot of stuff in the basket. Since we use it at least once a day folding it and hanging it up isn't worth it to us. I don't have a solution - ours lives next to our dining room table and we've just decided that the convenience is worth the aesthetic yuckiness.

I have the same stroller and we have been leaving it in the hallway. Our neighbours have had no problems so far! Just ask your neighbours if they'll be ok with that.
I also like the idea of hooks and keeping it in the car. We do not have a car so it does not work for me!
But I do agree with CMcB that it is a rather bulky stroller and not so easy to fold!

I have a Bugaboo Bee in that happy yellow color and I just park it right outside his room. I splurged on a fancy design-y stroller, partially for that reason -- I really didn't like the look of a lot of strollers and I knew it would probably spend a lot of time as furniture rather than vehicle.

I guess we have the "It's here. It's a stroller. Get used to it" attitude. Your stroller is pretty sculptural too. Why not treat it like one and find a nice place to display it?

You just have to resist the urge to throw clothes on it, lol.

We live in a 600 sqf apartment. We are waiting a baby in a month. I already got a stroller (and a big one with bassinet and everything). Originally I thought I would keep it in the trunk of our car. But I came up with a screen idea. You can either buy a foldable screen or build one easily yourself and put the stroller wherever you want with the screen in front of it. Hope this helps. I will soon put the pictures of our apartment in apartmenttherapy's 'small and cool' Los Angeles page. You can look the pictures of my screen there.

Our (twin) stroller lives outside, in the tiny garden house (and there is no place left for anything else).