Art and Design Review, 2022, 10, 120-135 https://www.scirp.org/journal/adr ISSN Online: 2332-2004 ISSN Print: 2332-1997 DOI: 10.4236/adr.2022.101009 Feb. 25, 2022 120 Art and Design Review An Exploratory Study on the Effect of Indoor Lighting for Buildings on Light Pollution Raghad Abdul Rahman Al-Ansari 1 , Abeer Abdulaziz Alawad 2 , Raghda Hassan Bakr Hareri 2 1 Department of Interior Design and Furniture, College of Humanities and Designs, King Abdulaziz University, Jeddah, Saudi Arabia 2 Department of Interior Design and Furniture, College of Human Sciences and Design, King Abdulaziz University, Jeddah, Saudi Arabia Abstract This study aims to identify the role of interior lighting in buildings in increas- ing light pollution, defined as the excessive use of artificial lighting that nega- tively affects humans, wildlife and clear astronomical vision. The research ques- tion is what aspects of interior lighting are the causes of external light pollu- tion. In order to answer the research question, a qualitative approach was fol- lowed, by interviewing six lighting specialists, and using a questionnaire to as- certain the views of twenty-one interior designers interested in designing inte- rior lighting. The data collection employed two axes: the first related to the characteristics of the indoor lighting unit, and the second related to factors af- fecting the interior lighting. The study concluded that interior lighting has a role in light pollution, which depends on its characteristics and the nature of the interior space, through the infiltration of lighting from the interior space to the outside of the building through the architectural openings, due to the lack of consideration of the following determinants of lighting installation in the space, such as the angle of illumination and the number of lighting units and the characteristics of the space in terms of colour, material and openings. We hope that the results of the study will benefit designers in helping to maintain environmental sustainability and reducing the increase in light pollution. Keywords Interior Lighting, Light Pollution, Types of Lighting, Residential Buildings 1. Introduction With the increase in world population, the use of artificial lighting in housing How to cite this paper: Al-Ansari, R. A. R., Alawad, A. A., & Hareri, R. H. B. (2022). An Exploratory Study on the Effect of In- door Lighting for Buildings on Light Pollu- tion. Art and Design Review, 10, 120-135. https://doi.org/10.4236/adr.2022.101009 Received: January 22, 2022 Accepted: February 22, 2022 Published: February 25, 2022 Copyright © 2022 by author(s) and Scientific Research Publishing Inc. This work is licensed under the Creative Commons Attribution International License (CC BY 4.0). http://creativecommons.org/licenses/by/4.0/ Open Access