Michele Argiolas

Real Estate Decision Making Processes and Web-Based Applications: An Integrated Approach

Decision-making is a critical part of a typical real estate property valuation aimed at quantifying the market value of a property according to its qualitative characteristics. Being visualization a prominent character of this kind of problems, GIS are commonly used as a support for spatial decision analysis. This paper presents a new approach that regards decision making as a data-driven process whose tasks can be decomposed and made executable as granular applications individually. Being applications implemented on networked resources (GIS, applications, databases, and so on), this paper aims at defining a computational environment, enabled by web technologies and supporting the analyst in planning, designing and coordinating different real estate scenarios. The paper also describes an application of the computational environment which deals with the use of relevant geospatial service, user knowledge and statistical information.

Engineering spatial analysis in real estate applications

This paper considers the urban processes that real estate (RE) experts use in assessing the value of a certain property, based on characteristics of that property and its environment. The main objective is to illustrate the confluence of RE decisional processes and spatial analysis and to show how these techniques can be put to work together. This paper describes a software package specifically designed for supporting spatial analysis of urban data collections. This software can serve as a reference architecture for developing applications that support decisional processes in real estate. Based on geographical features, the computational environment supports appraisal of a wide range of real estate types and can also create analytical maps for use in developing plans and strategies. A case study demonstrates how the computational environment can improve the quality of the diagnosis of urban real estate in a region that has been selected for a prototype implementation.

Web 2.0 services for collaborative spatial decision making

Spatial information is a powerful way to integrate data and knowledge in intuitive maps, enabling spatial patterns and relationships to be instantly visible. This paper describes a Spatial Decision Support System (SDSS) that supports web-based data exploration in spatial decisional processes. Based on a cloud environment, the SDSS is made up of specialised modules providing well-defined services. Mash-ups integrate data from different resources on the internet and provide the user with a flexible and easy-of-use interface. The paper focuses on Web 2.0 technology as a way for sharing geospatial data under the umbrella of collaborative decision making and it aims to make both a conceptual and a practical contribution. Conceptually, it leverages on web-based data integration as a power technology to increase broadly and self-adaptive management of data with high user involvement. Practically, it illustrates how this technology can be effectively deployed in a real estate decision-making scenario.

Solar Community Model: A Smart Strategy for Historic Centres Sustainable Renovation

The sustainable renovation of historic centres is a very complex operation both for the limited capacity to operate - due to the necessity of preserving the original architectural characters - and for the difficulty related to the renewable energy sources integration. The proposed model is based on the Solar Community concept that is related to public or private areas, well connected to major transport infrastructure in energy, made available to the citizens for the installation of renewable energy power-generating systems, in exchange for a share of the energy produced. The implementation and the diffusion of the proposed model and, generally, an energy policy aimed to achieve these structures reserving some exclusive energy shares for the historical buildings, could become the key for sustainable regeneration of historic centres, in terms of environmental, social and economical sustainability[1], with real benefits for both local residents and for the public administrations.

Tomo II : La valutazione come riferimento per la pianificazione : Cagliari e il suo contesto - L'ICI sulle aree edificabili : aspetti giuridici e problematiche estimative. Il caso di Cagliari

1. Aspetti giuridici dell’Imposta Comunale sugli Immobili Profili normativi L’Imposta Comunale sugli Immobili è stata istituita3 dal D. Lgs. n. 504/1992, che ne ha disposto l’entrata in vigore dal 1°gennaio 1993. Ai sensi dell’art. 1, presupposto dell’imposta è il possesso di fabbricati, di aree fabbricabili e di terreni agricoli, siti nel territorio dello Stato, a qualsiasi uso destinati, ivi compresi quelli strumentali o alla cui produzione o scambio è diretta l’attività dell’impresa. La definizione di fabbricato, area fabbricabile e terreno è indicata nello stesso decreto all’art. 2; in particolare, per quanto interessa in questa sede, e cioè le aree fabbricabili, la norma pone due criteri, l’uno sussidiario all’altro, per l’individuazione di tali aree: l’utilizzabilità dell’area a scopo edificatorio in base agli strumenti urbanistici generali o attuativi; l’utilizzabilità dell’area allo stesso scopo in base alle possibilità effettive di edificazione, determinate secondo i criteri previsti agli effetti dell’indennità di espropriazione per pubblica utilità. Quanto al primo criterio, la risoluzione n. 209/1997 del Ministero delle Finanze ha chiarito che l’edificabilità non deve necessariamente discendere dai piani urbanistici particolareggiati, essendo sufficiente che tale caratteristica risulti da un piano regolatore generale. La stessa ha, altresì, precisato che per le aree poste al di fuori degli strumenti urbanistici particolareggiati, ma entro lo strumento generale, la potenzialità di edificazione potrebbe essere suscettibile a variazione qualora la zona rientrasse successivamente in un piano particolareggiato. Tale situazione, pur se non influente sulla qualificazione dell’area, non sarà priva d’effetto: essa influenzerà la quantificazione della base imponibile. Il secondo criterio si incentrava sul concetto di “edificabilità di fatto”, in quanto, in maniera residuale, considerava edificabili quelle aree che, pur in mancanza di una esplicita indicazione da parte degli strumenti urbanistici, presentava-