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This paper aims to establish a reliable scale measuring occupants’ levels of environmental trust in their work settings’ indoor air quality and explore the relationship between occupants’ levels of environmental trust and their perceived control over the air quality in their workspace.

The authors conducted occupant surveys concerning indoor air quality in an office building, and collected corresponding indoor air quality measurements. Descriptive statistics and correlation analysis results are reported to reveal occupants’ levels of environmental trust and perceived control.

Results reveal that psychological perceptions of indoor air quality can be quite neutral, even shortly after an extreme wildfire event resulting in very poor air quality in an urban area. Occupants’ sense of trust that their office building could protect them from harmful air outside, and their belief that the building could protect them from seasonal smoky conditions, each correlated positively with employees’ sense of control over the indoor air quality in their personal workspace.

This case study adds to an interdisciplinary understanding for facility managers and organizational leaders concerning a way to measure occupants’ sense of control over the indoor air quality in their building, as well as their environmental trust in terms of how protected they feel from harmful air quality conditions.

The purpose of this paper is to investigate human behaviour under a situation of fire in high-rise residential buildings and identify the factors that motivate people to evacuate.

A literature review was conducted to identify different factors of human behaviour during a situation of fire and identify challenges during the evacuation. Through a mixed research method approach, the paper identifies human background, experience and knowledge with fire safety. The paper discusses the challenges occupants face during evacuation based on previous evacuation experience and what occupants were doing during the fire alarm.

The paper has identified the challenges and the factors that affect occupants’ decision during fire emergency in high-rise residential buildings. It is clear from the findings that occupants have limited knowledge and skills on how to deal with fire emergencies. Occupants tend to depend on other evacuation routes. Occupants tend to ignore the fire alarm and usually they investigate if it is true or false.

The paper provides the knowledge and findings of occupants during fire emergency to fire engineers, facility managers, owners, and other professionals to assist during the design phase, and modify designs based on this findings of this research.

Examines the possible impact of unitization on property management in the UK. Discusses the management of property investment schemes in which the units are listed on stock exchanges in Australia and the USA. Concludes that Australian and US experience suggests share price of the listed vehicle tends to drop when first floated, and that the importance of aggressive property management is its influence on the market price of the units/shares in the investment vehicle.

The sustainability agenda has already become widely recognised in real estate analysis. However, two challenges are to overcome before sustainability issues are brought fully into the professional and academic mainstream: first, the provision of sustainability enhancing qualities; and second, to overcome deep-rooted scepticism towards the higher cost element of such qualities (i.e. creating economies of scale). Another potentially related issue is that the notion of innovation is gaining popularity in this field. Innovation-driven change is cyclical and unpredictable, which in turn calls for an explicit evolutionary and complexity perspective. The paper aims to discuss these issues.

Critical literature review. The author’s own experience as participant of the discussions and debates is also used.

The conclusions suggest that, in line with evolutionary and complexity principles, innovations exist and emerge within the real estate industry itself, and in fields related to it – and this includes various aspects of promoting sustainability thinking.

This contribution uses valuation automata as an example of this argumentation.

The concept of complexity refers to emerging qualities found in the evolution of the development of an industry; the practical implication of complexity concerns the capability of managers to react competently in unfamiliar circumstances.

Thus, innovation in real estate is both economic and socio-cultural.

No similar (i.e. theoretically informed) papers on innovation or sustainability in real estate analysis have been written to the best of the author’s knowledge.

This paper explores the patterns of the current needs of users' social characteristics in post occupancy evaluation (POE) associated with the environmental performance of green buildings using systematic literature review (SLR). This paper aims to establish a conceptual nexus between environmental performance mandates and the current needs of the users' social characteristics.

This paper adopts a SLR approach designed using Preferred Reporting Items for Systematic Reviews and Meta-Analyses for 21 articles that were selected as qualitative synthesis in this study. The search parameter for the selected articles in this review was limited to publications in three databases, Scopus, Web of Science and Emerald, between January 2016 and January 2023, with the help of qualitative software ATLAS.ti 9© in the presentation of the network codes. The initial literature search has retrieved 99 papers which sequentially excluded 42 papers due to exclusion criteria, and the researcher was left with 57 papers. Out of 57, 14 papers were then removed due to duplication of records found in the Scopus and Web of Science databases, and 43 articles were further screened for qualitative synthesis. A thorough critical appraisal was applied to ensure that only selected papers were included, consensus was achieved among the authors and 22 papers were excluded. The qualitative synthesis has finalized 21 studies, and they are selected as confirmative findings.

Using network codes presentation of ATLAS.ti 9©, the result shows that the social characteristics are influenced by the evaluated building category and the users' category – the stakeholders (owners, designers) and the occupants. New-fangled elements in environmental performance mandates are legitimacy and accessibility. The users’ social characteristics are derived from the category of users, where the stakeholders (designers, owners) are relatively a novel benchmark in meeting the POE objectives towards environmental performance. The least attention on the users’ social characteristics based on the findings shows that image, experiential (conjoint), happiness, interactive behaviour, morale and values are depicted as the social current needs in the environmental performance using POE. However, all stakeholders and the building occupants’ social characteristics must have a confirmative relation to the performance mandates, especially for newly performance mandates elements: legitimacy and accessibility.

The research limits the literature search between the recent January 2016 and January 2023 in Scopus, Web of Science and Emerald databases. Limiting the year of publication to the recent years is important to select and rank relevant scientific papers which encompass the reviewed subject. Other limitations include the selection of papers focusing on the POE approach and environmental performance as the main subject of evaluation. Other evaluation purposes that are not related to environmental objectives are excluded in this study.

The characteristics of the social elements become a challenging subject in meeting the environmental performance needs as they lean more towards intangible elements. The novelty of the findings is drawn from the new pattern and current needs of users' social characteristics in POE for environmental performance.

Feedback from condominium occupants on multi-generational condominium facility services makes it possible to identify areas in need of improvement and development concerning facilities management in this residential project type. This paper aims to examine behaviours, needs, preferences and patterns of space use in condominium occupants from three different age groups (under 30, 30 to 50 and over 50 years old) relative to their satisfaction with facility services. The paper examines the impact of the physical environment and facility service arrangement (i.e. cleaning and security) on occupant satisfaction in the common areas of six multi-generational condominiums and investigates whether occupant satisfaction varies between the three age groups.

Six case studies classified as multi-generational condominiums were conducted. Research methods included document analysis, field surveys, interviews with juristic person managers and surveys from condominium occupants regarding their satisfaction with cleaning and security services in the common areas. The findings were then applied one-way ANOVA to test occupant satisfaction mean differences between age groups.

The findings indicate that physical environment characteristics including the location, size, number and design attributes of common areas have an impact on the provision of facility services and may influence occupant satisfaction. In terms of the facility service arrangement, both the service method and the ratio of staff to areas of responsibility can be explained in connection to functional and technical quality, respectively. Occupants’ demands and behaviours, such as the strong requirement for privacy, the preference towards service staff accessibility and the frequency of space usage, contribute to different levels of occupant satisfaction.

More case studies in Thailand and also in other countries, based on surveys with large samples of respondents, are required to increase the validity and to establish whether it is possible to generalise the study’s findings.

The findings and reflections upon them help understand the impact of physical environment characteristics and the provision of facility services on occupant satisfaction in various age groups. Recommendations are provided concerning building design and the provision of facility services in connection to perceived service quality and occupant satisfaction in multi-generational condominiums in Thailand that can apply to other types of real estate projects where similar facility services are offered.

This paper contributes to research on occupant satisfaction with facility services and provides evidence on occupants’ feedback in different types of perceived service quality (i.e. technical and functional quality). Identifying the impact of physical environment characteristics, facility service arrangements and occupant behaviours on occupant satisfaction with the technical and functional aspects of facility services contributes to the body of research on facilities management.

This paper aims to identify the indoor environmental quality in an affordable housing, as well as the health condition of users. Furthermore, it aims to find the relationship between quality of the indoor environment (IEQ) and sick building syndrome (SBS) and the satisfaction level of the occupants towards the IEQ factor, as well as the importance of the factors in the occupants’ view. Additionally, the purpose of this pilot study is to validate the questionnaire and identify the possible outcome of this research for the main study.

There are a few methods to achieve the objective of this paper: first is by literature review and second is by a survey. There are two types of survey made: observation survey and questionnaire survey. The purpose of observation survey is to survey the surrounding and the condition of the apartments, while questionnaire survey was distributed to the respondents in the affordable housing area. Next, is analysis and discussion of the survey, and finally, summary.

Aside from achieving the validity of the questionnaire survey, the results of the survey have found that the respondents are dissatisfied with the noise and glare level, as well as the amount of artificial lighting in their unit. Additionally, they have rated health, ventilation and amount of air movement as the most important IEQ factors. More importantly, the occupants have experienced the symptoms of SBS and the health condition of the building occupants. The results show that the most frequent symptoms affected the respondents are fatigue, dizziness and a headache.

This paper has indicated the IEQ in the affordable housing and identifies the health risk of occupants, specifically in Malaysia.

Concern of the deterioration of indoor environmental quality as a result of energy efficient building design strategies is growing. Apprehensions of the effect of airtight, super insulated envelopes, the reduction of infiltration, and the reliance on mechanical systems to provide adequate ventilation (air supply) is promoting emerging new research in this field. The purpose of this paper is to present the results of an indoor air quality (IAQ) and thermal comfort investigation in UK energy efficient homes, through a case study investigation.

The case study dwellings consisted of a row of six new-build homes which utilize mechanical ventilation with heat recovery (MVHR) systems, are built to an average airtightness of 2m3/m2/hr at 50 Pascal’s, and constructed without a central heating system. Physical IAQ measurements and occupant interviews were conducted during the summer and winter months over a 24-hour period, to gain information on occupant activities, perception of the interior environment, building-related health and building use.

The results suggest inadequate IAQ and perceived thermal comfort, insufficient use of purge ventilation, presence of fungal growth, significant variances in heating patterns, occurrence of sick building syndrome symptoms and issues with the MVHR system.

The findings will provide relevant data on the applicability of airtight, mechanically ventilated homes in a UK climate, with particular reference to IAQ.

IAQ data of this nature is essentially lacking, particularly in the UK context. The findings will aid the development of effective sustainable design strategies that are appropriate to localized climatic conditions and sensitive to the health of building occupants.

The field of building performance evaluation (BPE) forms a fragmented whole with tools and methods that are not widely applicable. In response, the purpose of this paper is to develop and demonstrate a novel BPE framework to bring consistency and flexibility in evaluating actual building performance.

The paper critically reviews and evaluates existing BPE methods and techniques and situates them in different building life stages. Using a hierarchical approach, a “BPE framework” is devised for new and existing buildings as well as refurbishments. The working of the BPE framework is demonstrated by applying it to four discreet BPE studies to enable cross-comparison of different BPE approaches based on their stage of application, depth and duration of BPE investigations.

The framework is designed to have four graduated levels starting at the “basic” level and developing incrementally to “core”, “comprehensive” and “advanced” levels, thereby focussing on “need to know” rather than “nice to have”. The framework also offers a mechanism to map different types of BPE studies with varying scope and content.

As we enter a world of smart meters and smart buildings, we are transitioning into a new future of understanding building performance. The study helps to better understand which BPE method can be used to study what aspect of building performance and in what building lifecycle stage, against time, cost and user expertise.

The graduated and flexible framework helps to bring consistency in evaluating building performance in an otherwise fragmented field, to help improve building performance.

Indoor air quality monitoring is extremely important in urban, industrial areas. Considering the devastating effect of declining quality of air in major part of the countries like India and China, it is highly recommended to monitor the quality of air which can help people with respiratory diseases, children and elderly people to take necessary precautions and stay safe at their homes. The purpose of this study is to detect air quality and perform predictions which could be part of smart home automation with the use of newer technology.

This study proposes an Internet-of-Things (IoT)-based air quality measurement, warning and prediction system for ambient assisted living. The proposed ambient assisted living system consists of low-cost air quality sensors and ESP32 controller with new generation embedded system architecture. It can detect Indoor Air Quality parameters like CO, PM2.5, NO2, O3, NH3, temperature, pressure, humidity, etc. The low cost sensor data are calibrated using machine learning techniques for performance improvement. The system has a novel prediction model, multiheaded convolutional neural networks-gated recurrent unit which can detect next hour pollution concentration. The model uses a transfer learning (TL) approach for prediction when the system is new and less data available for prediction. Any neighboring site data can be used to transfer knowledge for early predictions for the new system. It can have a mobile-based application which can send warning notifications to users if the Indoor Air Quality parameters exceed the specified threshold values. This is all required to take necessary measures against bad air quality.

The IoT-based system has implemented the TL framework, and the results of this study showed that the system works efficiently with performance improvement of 55.42% in RMSE scores for prediction at new target system with insufficient data.

This study demonstrates the implementation of an IoT system which uses low-cost sensors and deep learning model for predicting pollution concentration. The system is tackling the issues of the low-cost sensors for better performance. The novel approach of pretrained models and TL work very well at the new system having data insufficiency issues. This study contributes significantly with the usage of low-cost sensors, open-source advanced technology and performance improvement in prediction ability at new systems. Experimental results and findings are disclosed in this study. This will help install multiple new cost-effective monitoring stations in smart city for pollution forecasting.