Method of evaluating occupancy and cost efficiency of real estate, comprising entering size, total occupancy and rental cost information for a given property, as well as location information (1). Calculations are performed (2) to determine values of occupancy efficiency and cost efficiency (G, J). A point of comparison (G0, H0) is determined from a lookup table to provide the average values for occupancy efficiency and cost efficiency for a property in the location of the given property (3). There is then displayed a chart (4), which plots occupancy efficiency and cost efficiency against one another, the chart comprising four quadrants delineated by the lines parallel with the axes of the chart and which pass through the point of comparison (G0, H0). A point whose co-ordinates represent the calculated values (G, J) is plotted (5) on the chart to enable a rapid visual assessment of the given property versus the market to be made.