Urbanisation was a rapidly growing phenomenon in many developing countries, particularly in Sub-Saharan Africa, where expanding urban populations exert increasing pressure on natural resources and the environment. This study examines the relationship between urbanisation and environmental degradation, using Kasenyi Landing Site in Entebbe Municipality as a case study. Kasenyi Landing Site, located along the shores of Lake Victoria in Entebbe Municipality, Wakiso District, has experienced significant population growth due to fishing activities, trade, tourism, and related economic opportunities. Using both qualitative and quantitative research approaches, data were collected through questionnaires, interviews, observations, and review of secondary documents from Entebbe Municipality and environmental agencies. The findings reveal that rapid urban growth without corresponding infrastructure development has significantly contributed to environmental degradation, threatening public health, biodiversity, and the sustainability of fishing activities in the area. The study concludes that while urbanisation has improved livelihoods and increased economic opportunities for residents of Kasenyi Landing Site, it has also resulted in serious environmental consequences. It recommends strengthening urban planning mechanisms, improving waste management systems, enhancing community environmental awareness, enforcing environmental regulations, and promoting sustainable development practices. The research contributes to a better understanding of the environmental implications of urbanisation in rapidly growing urban fishing communities in Uganda and offers practical recommendations for policy makers and local authorities.