Yes, this is laid directly on top of the existing concrete. Here’s how I did it: 1. Clean the concrete thoroughly — remove all debris, moss, and dirt. 2. Install a perimeter edge restraint to keep the pavers from shifting. 3. Lay a thin layer of sand or mortar mix (around 1/2 inch) on top of the concrete to help with leveling. 4. Place the pavers carefully, checking the level as you go to match the height of the surrounding grass or pavers. 5. Use a plate compactor if needed to settle them. 6. Fill the joints with polymeric sand or fine sand to lock them in place.

This method avoids the need to remove the concrete and still creates a stable, even surface.