I'm sorry you couldn't get in a nice house so the kids could have that experience. It's sad they won't have a yard.
As for bunk beds? Absolutely do NOT put those kids in bunk beds! They are way way way way too young.
My bff from 7th grade through most of my life lost her elementary age child when he put his hand down to move over and he missed the edge of the bed and fell on his head. My friend was right there. He died anyway. He wasn't bouncing or playing or being rough, he was sitting still and just went to move and missed and fell.
He was in school already, your girls aren't even 2 yet.
I am confused about that though, most developmental charts show birth to age 1 as infants then age 12 months up to 24 months as toddlers.
Toddlers are developmentally trying to learn to walk and run and talk and hold a toy and move without toppling over. That's a toddler.
Once they get to age 2 years old they aren't really doing that stuff anymore so they're a pre-schooler age. Once they turn 4 they're a pre-K age. Each developmental stage is specific and different.
If you continue to call either one of them toddlers some people might really be confused by your term. I realize many still call a 2 year old a toddler but the developmental challenges for those two age groups are very different.
Both kids are too old for toddler beds now. If they're making a big change to the new house start them both in twin beds or some sort of corner unit bed. I'll find a link and post a picture of what I'm talking about. I love these sort of things.
So, again, you need a bigger place as far as I can tell from what you're stating. Have you thought about that???? Perhaps you could find a place with more space.
Perhaps you can knock out a wall before you move or let the kids take your larger room and you and wife take the smaller room. You really only need space for your bed. Your other bedroom furniture could go in another room?
Some might also say they have had a lot of changes in their lives and why not put them in one full size bed. That's not a bad idea in their case.
Another option is a trundle bed. A bed moves out from underneath and it can move up even or it can simply sit on the floor.
http://www.potterybarnkids.com/search/results.html?words=...
When you move in the next few years due to needing more space you could get a 3 bedroom place and they would each have their own room. As they go to elementary school they'll start wanting to have their own friends over and separate spaces.
***********************************************
These are about the price of what I've seen people pay but these are rather plain for girls. The white is nicer and they can decorate with various colors. Lots and lots of storage under the beds.
http://www.potterybarnkids.com/products/belden-corner-unit/
******************************************
This is almost the same exact thing but thousands more. Shopping around will help you get a great deal.
http://www.potterybarnkids.com/search/results.html?
words=twin+bed+corner+unit
This one has tubs instead of drawers. I like the drawers but these tubs are nice since they are exactly the same AND semi Opaque. Can't see the mess inside.
http://www.goodshomedesign.com/diy-twin-corner-beds-storage/
Here's how to build your own corner unit bed set.
http://isteppedoutofmycomfortzone.blogspot.com/2010/09/an...
************************************************
The first picture is another way of doing 2 twin beds, without any sort of shelving unit. This will take even less space.
http://ana-white.com/2011/04/cozy-corner-twin-bed-collect...
If you leave off the headboard and side shelves you'd save at least 8-10 inches.
**************************************
Nice chest of drawers placement.
http://thebeanbagstore.com/bhbrooklyncornerunit.htm
***************************************
Again, it truly sounds like you need more space so planning on moving to a larger home in the next few years might be something to consider when putting money into this new place.
Bunk beds are for much older kids and NOT pre-school age kiddos. Your kids are way too young.
Lose the toddler beds, they are BOTH too old for them.
Then look at other options for using your space. They are still in a transition/traumatic place. If this was me I'd simply get one bed and let them share until you move by the time the youngest starts elementary school.