This study investigates the environmental consequences of informal sector activities in the south
east region with particular reference to Enugu Metropolis, Nigeria. The informal sector, plays a
vital role in the local economy but contributes significantly to environmental degradation. The
research assesses the consequences of informal sector activities, in relation to land use regulations
in high density areas of Enugu, among which includes; Abakpa, Obiagu Road, and Ogbete. The
study employs mainly primary data and secondary date from internet search engine. Personal
observation, key informant interview and FGD were the primary sources utilized. Simple random
sampling was adopted in the study. Qualitative data were used for the analyses. The study revealed
some of the consequences of informal sector activities on the environment which include waste
accumulation and improper disposal, pollution, water contamination, traffic congestion and road
obstruction among others. Findings revealed that the informal sector activities were not
regulated, and land use regulations were selectively implemented. Therefore, the study suggest
that the informal sector activities should be regulated. Basic facilities such as sanitary facilities
should be provided, and there should be strict implementation of land use regulations for
sustainable environmental development.