###### Abstract  
Synthesizing the Internet of Things (IoT) with building information modeling (BIM) can improve the performance of the data collection. In this regard, BIM endeavors to enable real-time monitoring conditions of buildings. This paper is focused on the indoor positioning system (IPS) as a key enabling technology for IoT applications, which uses smart and non-smart mobile devices (object tags and beacons) with the aim of positioning and objects tracking that lead to a smart approach in the field of facility management (FM). Hence, we have surveyed the joint use of IPS and BIM in FM based on the concept of enterprise BIM (EBIM). EBIM forms the basis for the future strategic real estate management using virtual models and open standards. As a result, we gained the ability to collect positioning data continuously, save them in a BIM database, and present them on two-dimensional (2D) maps. This is a part of an ongoing study that aims to use data collection effectively for FM as an organizational function in large and complex buildings. Hence, for this purpose, we have considered St. Olavs Hospital, one of the biggest healthcare centers in Norway, as a case study. The effectiveness of data collection by IoT devices installed in buildings and how the combination of BIM and IoT technology can support a holistic view of the status of the buildings, which subsequently can enhance data usage efficiency and FM development, will be demonstrated. Internet of Things (IoT); building information modeling (BIM); indoor positioning system (IPS); enterprise BIM (EBIM); facility management (FM) +
Footnote †: journal: Smart Cities  
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result from responsiveness and reactivity of the new system. The development of the IoT will permit managers to have a better understanding of how people use buildings, leading to new maintenance approaches, better design, and finally more productive spaces [2]. This means that by changing the perspective of productivity and facility management, smart buildings provide useful, integrated and intelligent services that create the lowest environmental impacts and costs throughout the life cycle of the building. In fact, smart buildings utilize information technology to exchange data in real time. In this regard, interoperability, empowering equipment through unified information generated by a platform of the Internet of Things (IoT), and artificial intelligence (AI) are the most important leverage factors. In general, smart buildings offer a wide range of benefits and services within a good working environment to owners, facility managers, and inhabitants and they act as an additional service platform according to the needs of the stakeholders [3]. Hence, careful preparation within the building planning and highly professional management and maintenance during operation are the key roles in facility management [1]. Indoor positioning systems (IPS) contributed to increased functional efficiency and making fundamental development in many types of industries and organizations. In this regard, many companies employ the new possibilities and functionalities found in IPS solutions. The most considerable advantage of using IPS in the industry is its significance and usage potential in establishing and developing new services [4]. In fact, IPS is a set of software and hardware solutions that permits the position and situation of people or objects wirelessly inside buildings (Figure 1). IPS are integrative and inclusive systems that are aimed to be a part of the converging technologies, and they have been designed to work in a mutually reinforcing and synergic manner. These systems are in charge of gathering raw and unprocessed data with the help of sensors for later use and by means of software and applications of location estimation techniques.