Our entire backyard was paved with asphalt by the previous owners. They parked a couple RVs and boats back there. I would like to keep most of it, as it is a driveway to the detached garage, but it is unnecessarily large, and would like some areas of either grass or mulch for both aesthetics and so our 2 dogs have a place to run.

We will likely only be in the home for 5-7 years before buying something else and using it as a rental property, so I do not want to invest a large some of money, but a couple thousand is acceptable, I will likely do all the work myself.

Is there any way I can place mulch or grass on top of the asphalt without having to remove it? I was thinking of making a paver edging/boarder, then simply filling with mulch. If needed this could always be removed, and I think it would accomplish what I want, but I am concerned about drainage.

Does anyone have any experience doing something like this?

I could always remove the asphalt where I want grass or mulch, but if drainage wont be an issue I would like to avoid that labor.

The red is the property line, the green hashed areas are currently paved and where I would like grass or mulch. There is a shed and a trailer in the green areas in the picture, but neither are currently there.

Any advice would be appreciated. Thanks!