It's a good time at contract signing to arrange your own responsibilities in the project engagement. Your builders and consultants will deliver to contract and they also want to know what you can deliver to support their work. This goes beyond payment stages and milestones. It relates to how site visits are conducted, how communications are recorded, how variations are documented and how health and safety issues are resolved. There are many client / owner obligations that a builder may request. This may involve items such as dealing with neighbours, parking, choices in materials, operating hours and the like. You may think that these things are minor but it is good to set some of these expectations early as a matter of risk management in your project.