Urbanisation is an important driver of economic and social development.
However, when urban growth occurs rapidly and without adequate planning, it can place increasing pressure on land, water resources, infrastructure and ecosystems.
Urban sprawl, characterised by the outward expansion of settlements in a dispersed or poorly coordinated manner, can intensify these pressures.
In Zimbabwe, cities and towns continue to experience pressure from population growth, housing demand and changing land-use patterns. Chitungwiza provides an important example of how environmental considerations can be incorporated into urban development and planning decisions.
Environmental pressures associated with urban growth
The expansion of Chitungwiza has been accompanied by a range of environmental and infrastructure challenges, including sewage pollution and failures within the sewerage system.
Reports in 2026 have highlighted incidents of raw sewage flowing into streets and residential areas, while residents have also reported concerns about the contamination of domestic water sources.
These problems have been associated with ageing, overloaded and poorly maintained sewer infrastructure.
Water availability is another longstanding challenge. Chitungwiza depends significantly on external water supplies, while alternative sources such as boreholes and wells have been used to supplement supply during periods of shortage. Recent environmental planning discussions have identified water scarcity as an important consideration for the town’s future development.
Urban development has also placed pressure on environmentally sensitive areas. Research on Chitungwiza has documented human activities affecting wetlands, including construction, urban agriculture and waste dumping. The expansion of residential areas into wetlands and other sensitive locations, including flood-prone areas, can increase risks associated with flooding, habitat degradation and changes to natural drainage systems.
Waste management presents another challenge. Chitungwiza has experienced difficulties with waste collection and disposal, with parliamentary records previously highlighting inadequate refuse-collection capacity and limitations in disposal infrastructure. Reports of open burning of waste also raise concerns regarding local air quality and public health.
There have also been recent allegations concerning industrial effluent entering a river behind Chitungwiza’s Surface Industrial Area. In August 2026, residents petitioned the Zimbabwe Human Rights Commission over alleged discharge of oily industrial waste.
These reports represent allegations made by residents and should, therefore, be distinguished from independently verified findings.
Collectively, these challenges demonstrate the pressure that urban expansion can place on water resources, sewerage systems, waste-management infrastructure, wetlands and other environmental resources. They also highlight the importance of integrating environmental considerations into decisions about where and how further development takes place.
Role of environmental impact assessment
Environmental impact assessment (EIA) is primarily a preventive tool. Its purpose is to identify and assess potential environmental and social impacts before a proposed development is implemented, allowing appropriate mitigation measures to be incorporated into project design and implementation.
In the context of urban expansion, EIA can help decision-makers consider issues such as the availability of water resources, wastewater management, drainage, waste generation, land capability, biodiversity, flood risks and potential impacts on surrounding communities before development proceeds.
However, EIA alone cannot reverse urban sprawl or resolve environmental problems that have already developed. Where impacts already exist, complementary environmental management tools are required. Environmental audits, monitoring, compliance assessments, environmental management plans (EMPs), corrective measures and rehabilitation programmes can help identify existing problems and guide appropriate responses.
For example, degraded areas may require rehabilitation and re-vegetation, while polluted sites may require investigation, remediation and continued monitoring. Poorly functioning drainage, wastewater and waste-management systems may also require corrective interventions supported by appropriate environmental assessments and management measures.
This distinction is important: EIA can help prevent future developments from creating or worsening environmental problems, while environmental monitoring, audits and corrective management can help address impacts associated with existing development.
Supporting better urban environmental management
Addressing the environmental challenges associated with urban sprawl requires more than identifying individual problems. It requires continuous assessment, planning, monitoring, enforcement and stakeholder participation.
Environmental consultancies such as BUMIRA Investments (Pvt) Ltd can contribute technical expertise to this process by supporting development planning, environmental management and regulatory compliance.
One of the key tools is environmental and social impact assessment (ESIA). For proposed developments, an ESIA can identify potential environmental and social impacts before construction begins and help determine appropriate mitigation measures. This allows environmental considerations to be incorporated into project design rather than addressed only after impacts have occurred.
Environmental management plans (EMP) provide an important link between assessment and implementation. An EMP can translate identified impacts into practical mitigation measures, responsibilities, monitoring requirements, reporting procedures and corrective actions.
Environmental monitoring and compliance audits can then assess whether mitigation measures are being implemented effectively. Regular monitoring can help identify changes in water quality, waste-management performance, pollution levels and other environmental conditions, while compliance audits can identify areas where corrective action may be required.
Risk assessment can further strengthen urban environmental management by identifying potential environmental and social hazards before they result in significant consequences. This is particularly relevant in areas where residential, industrial, commercial and environmentally sensitive land uses occur in close proximity.
The value of GIS and spatial planning
Geographic information systems (GIS) and spatial analysis can also support more informed urban development decisions. Environmentally sensitive areas such as wetlands, streams, flood-prone areas and other vulnerable or restricted zones can be mapped and incorporated into land-use planning.
GIS can help planners, developers and other decision-makers understand where development may create environmental conflicts and where particular areas may require protection, monitoring or rehabilitation.
When combined with environmental assessment, spatial information can support more informed decisions about the location and design of future developments.
Importance of stakeholder participation
Stakeholder engagement is equally important. Urban development affects residents, businesses, local authorities and other stakeholders, and their experiences can help identify environmental and social concerns that may not be immediately apparent through technical assessments alone.
Meaningful consultation and participation can, therefore, help ensure that community concerns are considered during environmental assessment, project planning and the development of mitigation measures. It can also strengthen transparency and improve communication between developers, authorities and affected communities.
Looking ahead
Chitungwiza’s future development presents both opportunities and environmental challenges. Continued urban expansion can provide housing, infrastructure and economic opportunities, but poorly planned development can place increasing pressure on land, water resources, ecosystems and municipal infrastructure.
Environmental impact assessment provides an important mechanism for identifying potential risks before new development takes place and for incorporating mitigation measures into project design and implementation. However, EIA should not be viewed as a standalone solution to urban sprawl. Its effectiveness depends on how it is integrated with broader urban planning, infrastructure investment, environmental monitoring, regulatory enforcement, public participation and spatial planning.
For Chitungwiza, a more integrated approach to urban environmental management can help accommodate future development while protecting environmentally sensitive areas, reducing pollution risks and strengthening the resilience of the town’s infrastructure and communities.
