Do you mean that you want to remove the dog and put down grass again? I see no problem with that as you can give the yard a thorough clean then turf it on top of some top soil. This has worked for me in the past.
The important thing is to get it healthy and don't put the dog back while you do that. What I do with our dog pen is move it every so often so the dog will not end up in one bug mud puddle.
A dog run that has been in one spot for any length of time most likely will have low spots that need filled...
Also the complete area will be compacted so a good airation will be a very good thing to start with... :smile:KennyV
The first rule of gardening is to start with good soil. (The soil there has already recieved lots of "fertilizer" so you've actually got a head start....!) If you kill any weeds and till the soil, Fall is one of the best times to start a new lawn.
You could put a top soil on your dog's area. There are places where you could buy fine grass too
-------------------------------------------------------------------------------------------------------- Dog Pens - 30% Off & FREE Shipping on Dog Exercise Pens, Dog Pens - Lowest Price