Análise quantitativa do fator de verticalização no cálculo do IPTU de Fortaleza

Abstract

This work uses Evaluation Engineering to determine if one of the factors used for the calculation of Fortaleza’s Property Tax is being applied correctly. In 2013, Fortaleza’s city hall implemented a progressive collection system on the Property Tax for residential apartments, by creating the Verticalization Factor, which is an increase, for buildings with elevator, or a decrease, for buildings without elevator, of 0,5% per floor on the market value of the property and, consequently, on the amount of Property Tax that is charged. This adjustment of the collection system was matter of protests and of changes in the property scene of the city. Faced with this, an analysis of the property market for apartments was made in one of the main neighbourhoods in the city, with the objective of quantify the variation per floor of the market value of apartments in buildings with and without elevator. For this purpose, two evaluations were carried out: the first one considers apartments located only in buildings with elevator and the second one considers apartments located only in buildings without elevator. The evaluations were executed by following the national standard NBR 14.653, parts 1 and 2, and by using the Sales Comparison Approach with statistical inference and linear regression models. The obtained models were projected on similar apartments of different floors located in fictional buildings, with the objective of isolate the variable “floor” on the correlation with the square meter value. The result shows that the variation per floor of the market value is different from the variation stipulated by the city hall.