The method of Archilyse allows objective and consistent analyses of floor plans – even very large portfolios can be processed quickly. The quality of a floor plan is quantitatively measured, compared and the properties can be ranked. The analyses take thousands of data points into account. The view, lighting conditions, noise pollution and geometrical factors of the floor plans are quantified and also introduced into a more precise determination of the rental or sales price. The results of the analyses are a valuable basis for decision-making, especially for new buildings where no historical transaction data is available.