In the past couple years, my building "officially" allowed dogs and cats and there is an assortment here. I do see some owners bringing their dogs out to walk (and do their do) but I expect most may do it out on the balcony (they may be putting down some newspaper for them to go on and that can be rolled up and discarded or in a litter box).

If your pets are used to grass, you could consider creating a little raised-bed area on the cement by putting down some plastic, maybe adding a thin layer of soil, and then get a piece of grass sod to lay on that. Surrounding it with some wood strips to create a mini raised bed would neaten it a bit. Then the dogs could learn to use that patch and you could reseed and make sure it gets watered to keep it growing.

Thanks. That's sort of what I was thinking. I was going to get some boards that they use to make decking with now, that aren't really wood. And make a big square, lay down a bit of soil and lay sod on top. I'll try and see how it goes. I'm a bit worried about the smell. It's right by my front entry. I can keep the doodlies picked up, I hope the wee doesn't smell over time. I'm trying to figure out some kind of drainage system.

I would love to see pix of your storefront house--sounds darling. I live upstairs with my precious Pug who just loves to go for walkies, but I have bad knees and try to limit my stair-climbing. So I utilize wee-wee pads as a backup if I'm later than usual coming home, and she does great with them. Never an accident. It's easier and cheaper than trying to grow a patch of grass for a potty!

They actually make dog potty's that might be something you could use. I've often thought it wouldn't be too hard to make your own.

Here is a link that might be useful: Dog Potty