Where can I find about the labour costs for differents types of landscaping work? for ex. laying patios, building retaining walls, rebuilding existing walls, constracting decking platforms, etc. In order to submit a project proposal.
Spon's Price Guides for Landscaping Works. You should be able to get a copy from CIP or BRE Books but bear in mind the prices therein are guides. You;ll probably need to discount to win any work.