floating / cantilevered stairs for the garden

[pawwaw17]

in the design stages at the moment. am looking to biuld some stairs, to go up 2.5m in around 5-6 m distance. would like to have them curve round to form a sweeping curve over the length,
i am trying to make it a modern design, would like to have a disign to use large concrete slabs that jut out from the slope and form the treds, if anyone has seen this design or knows how think the concreat needs to be to form a stair tred that would be usefull. thank you for any information.

[buildersmate]

Well the structure would have to be approved by Building Control at your local council, because the retaining wall is higher than 54 inches high. And its going to have to be properly designed by a structural engineer if its going to be safe, plus the amout of excavation you would have to do will be significant. I think it would have to be precast and part of a properly-designed retaining wall. You really need to talk to a professional involving in landscape gardening to move this forward. This sounds like a �15k to �20k project to me.