I would like to build a floating deck over an existing concrete patio. The patio has a footer under it and previously had a screened in porch that was attached to the house by the builder. I plan to build the deck immediately adjacent to the house, but not directly attached to the house. All Deck Blocks will be placed on the concrete patio. Additionally, I am investigating concrete anchors to attach the deck to the concrete patio. Do you see anything wrong with this plan?

I do not see any problems building on the concrete patio. It sounds like the patio is frost protected. It should be unaffected by frost. Your deck should be fine on the patio so long as all the blocks are on the patio. I don't see anything wrong with anchoring the deck to the patio. What type anchors did you plan on using?

Deckman

I am currently exploring ways to do this. I would like to anchor directly into the concrete pad and then attach the deck supports to the the anchor, maybe with a cable or fitting of some kind. I plan to consult the local building inspector. Any thoughts on this?