African cities are growing faster than any region on earth. By 2050, over 1.3 billion people will live in urban areas across the continent — many in cities that did not meaningfully exist 30 years ago. Nairobi, Kampala, Kigali, Accra. These cities are expanding outward and upward simultaneously, and the infrastructure that should support that growth is perpetually playing catch-up.
At the centre of the planning response — where it is working — is Geographic Information Systems (GIS). Not as a buzzword. As a genuine operational tool that is changing how decisions get made about roads, water, housing, and land.
GIS is not just mapping. That is the most common misconception. Mapping shows you where things are. GIS shows you the relationship between things — and lets you ask questions of that data.
A city planner using GIS can ask:
These are not abstract questions. They are the questions that determine whether a city works or fails for the people living in it.
The Nairobi Metropolitan Services (NMS) and various NGO partners have used GIS-based mapping to document over 200 informal settlements across the city. The work involved:
The result is a living dataset that planners can update and query, rather than a static report that is outdated before it is printed.
Rwanda’s land tenure regularisation programme — widely regarded as one of the most successful in Africa — was built on GIS. Every parcel in the country was mapped, validated with landholders, and entered into a national land information system. The programme reduced land disputes, increased formal land transactions, and gave the government accurate data to plan infrastructure investment.
The GIS component was not incidental. It was structural.
The Greater Accra Metropolitan Area sits on a coastal plain with a complex drainage system. Seasonal flooding displaces thousands of residents annually. The Ghana Urban Management Pilot Project used GIS to combine elevation data, drainage network information, and historical flood extent records into risk maps that now inform where new development is permitted and where existing development needs flood mitigation investment.
The biggest limitation to GIS in African urban planning is not technical. It is data.
GIS is only as useful as the data feeding it. And in many African cities, that data is:
The answer to this is a combination of open data policies, standardised data collection protocols, and investment in survey capacity — including RTK GPS and drone mapping — to fill the gaps.
GIS analysis is only as accurate as the spatial data it works from. If your base map is wrong — if parcel boundaries are approximate, if road centrelines are shifted 20 metres, if elevations are estimated — every analysis built on top of that data inherits the error.
This is where precise survey work matters. RTK (Real-Time Kinematic) GPS survey produces centimetre-accurate coordinate data. When that data feeds a GIS, planners can trust their analysis enough to make decisions from it.
For land boundaries in particular, there is no substitute for precise survey. A GIS map that shows approximate boundaries is useful for visualisation. It is not useful for legal decisions about ownership, compensation, or development rights.
The best urban GIS implementations share common characteristics:
This is achievable. It is being achieved in cities that prioritised it. The question for any city is not whether GIS is relevant — it is whether the investment in data and systems will be made.
For a county government or municipal authority starting from scratch, the path forward does not have to be a 10-year digital transformation. It can start with:
From that foundation, capability can be built incrementally. The important thing is to start with data quality — accurate coordinates, consistent attributes, documented sources.
Everything else in urban GIS depends on that.
ZeroPoint Geospatial provides RTK survey, drone mapping, and GIS data services to county governments, developers, and NGOs across Kenya. Get in touch to discuss your project.