We wanted to retile an outdoor space partially covered in river pebbles. We wanted to use sand as this is better for drainage and easier on our feet. We also had a limited budget, so we didn't want to go down the concrete route.
Half the existing area was a concrete slab under the concrete tiles.
The other half was soil.
My partner and I cleared up this area. Then we put in boundaries and weed mats.
We then put a layer of base course and tampered it down. At this stage, we levelled it out with a minimum two percent gradient, so any water build-up runs off away from the house, given the patio is surrounded by three walls.