Fire Safety Implications of Non-Compliance with Space Standards in Urban Communities

Abstract

Space standards and safety codes are stipulated to ensure that physical developments are resilient against environmental hazards like building fires; however, the effectiveness of these planning regulations hinges on strict compliance. Anchored in the theoretical frameworks of urban governance and disaster risk reduction, this study assesses the compliance of urban buildings with space standards relevant to fire safety in Ibadan, Nigeria. The study utilized a cross-sectional survey design, collecting data via structured observation checklists from 1,803 buildings selected through multistage systematic random sampling across 88 non-overlapping communities in eleven Local Government Areas (LGAs). Results indicate a critical deficit in
regulatory adherence regarding minimum “building space,” maximum “plot coverage,” and minimum “road setback”. The mean observed building separation was just 3.35m (±2.47m), creating a high risk for rapid fire propagation. Spatial analysis revealed that plot coverage was significantly higher in the high-density inner city (74.79%) compared to the outer city (70.72%). Conversely, the mean road setback was significantly higher in the inner city (7.5m) than in the outer city (5.4m). Furthermore, compliance
varied by land use; public (68.5%) and industrial (66.7%) facilities demonstrated higher adherence due to stricter institutional monitoring, whereas residential and commercial sectors largely failed to meet safety criteria. The study concludes that the prevailing disregard for space standards constitutes a "dynamic pressure" that engenders unsafe conditions, impeding emergency response and increasing community vulnerability. Consequently, the research advocates for a paradigm shift from top-down regulatory enforcement to participatory urban governance that integrates community-based risk awareness and inclusive disaster mitigation planning.