An architect can have several roles in their professional life. They might be designing plans or drawings either for the purposes of obtaining planning permission, or for a building contractor to follow when constructing a building. If the plans are faulty which results in planning permission being rejected or results in the building being built in the wrong place, to the wrong height or even in a dangerous state, that is likely to be negligent. Architects also supervise building contracts, and if they failed to attend site when they are supposed to and/or fail to identify defects to the building as it is being constructed, that is also likely to be negligent.