A laser receiving arrangement, co-operable with a reference plane defined by a laser transmitter, including a data storage device, a sensing arrangement, a logic arrangement and a user interface. The data storage device stores a respective desired elevation for each of a plurality of target points. The sensing arrangement senses the reference plane and produces an output indicative of an elevation of a selected target point relative to the reference plane. The logic arrangement is configured to receive from the data storage device the respective desired elevation of the selected target point, receive the output of the sensing arrangement, and produce an output based on at least the received elevation and the received output. The user interface is configured to produce an output interpretable by a user, based on the output of the logic arrangement and indicative of a deviation of the target point from its respective desired elevation.