Locations · County
Irrigation in Nairobi
Nairobi's farms are small, close to the market, and short on space — the plots of Embakasi, the greenhouse clusters of the northern and southern corridors, the nurseries that feed the city's landscaping. The systems that work here are compact, precise and built around the water a city farm can actually hold: a borehole, a tank, a harvested-rain setup.
Irrigation needs in Nairobi
Three things define the Nairobi job. First, space: the farms are ¼-acre to 2-acre plots, container setups and single-room greenhouses — the system must deliver precision in a small footprint, which is where drip's low flow and zone control shine (a 400-litre tank can carry a container farm's week). Second, water: reticulated water is irregular and metered, so most productive plots run on boreholes, harvested rain in tanks, or a shared small source — the storage design is the real design. Third, labour: at city land values, the operation has to run lean — automation (a timer or a controller) is the standard on these plots, not the upgrade, because the person who owns the plot is rarely at the plot.
Crops and setups we see here
- Leafy greens on small plots — kale, spinach, sukuma, coriander: beds with two lines or a fine tape line, short frequent runs, the fastest payback crop in the city market.
- Greenhouse vegetables — tomatoes, capsicum, cucumber, strawberries under cover: the full greenhouse pattern — drippers per plant or bag, fertigation for the long cycle, filtration matched to the source.
- Container and raised-bed farms — a per-bed drip line with a manifold, timed from the tank; the design question is the tank size and the run schedule, not the pipe.
- Nurseries — the per-pot or per-row drip line with fine emitters, the automation doing the watering for months; the crop pages apply to the finished plants these systems raise.
- Fruit and orchard plots — the city's small avocado and mango blocks run the orchard pattern at small scale: a few lines per tree, the source doing the work.
Water sources in the city
| Source | Typical role | Filtration |
|---|---|---|
| Borehole (the most common on productive plots) | The daily supply; the yield measured for the plot's need | Disc filter — borehole water is clean but carries iron; the weekly cleaning holds the emitters |
| Tank (rain-harvested or stored) | The plot's buffer; sized to the crop's peak week | A first-flush on the roof intake; a screen or disc stage at the outlet |
| Shared or small dam | The neighbourhood source; the intake protected from silt | Sand/media stage + disc, the intake screened |
| Reticulated | The top-up, where available and reliable | The tap's own sediment is the reason the filter is still in the design |
On a city plot, the source is rarely the abundant one — the design's job is to make the water the farm has do the work, and to store enough of it that a supply interruption is an inconvenience, not a crop loss. See the water quantity guide for how the sizing works.
How we design for Nairobi
The design starts from the plot's actual shape — the beds, the containers, the greenhouse room, the access — and the source's actual behaviour, not the county's average. The compact head (a small filter, a valve or two, the pump or the gravity head) is placed where the plot can hide and service it; the zones are the plot's blocks; the automation is the default, sized to the plot's labour reality. The assessment walks the plot; the design documents it; the install is a short job — city plots install in days, not weeks, because the footprint is small.
Areas we serve
Peri-urban farming zones across the city — Embakasi, Rongai, Kawangware, Roysambu, Kibra, the Lang'ata and Ngong Road fringes, and the greenhouse and nursery clusters on the northern and southern corridors (including the farms just inside the city boundary that work from the Kiambu and Kajiado side). See the Kiambu and Kajiado pages for the neighbouring production zones.
FAQ
Nairobi irrigation questions
Can I run a drip system from a rainwater tank?
Yes — rainwater is one of the cleanest sources for drip, and a well-sized tank can carry a small plot's week. The design question is the size: the tank has to hold the crop's peak-week demand plus a margin, and the outlet needs a screen or small disc stage because the tank collects what it collects. Harvested rain is a real, economical supply for Nairobi plots — the water guide covers the sizing.
What does irrigation cost for a small Nairobi plot?
A compact system for a ¼–1 acre plot runs in the low end of the market range — a few hundred thousand shillings or less depending on the source and the automation, well under the per-acre figures the commercial pages quote. The cost guide gives the indicative 2026 ranges; the quote is built from the plot's actual layout and source.
Do container farms need special equipment?
Not special — a per-bed drip line with fine emitters, a manifold from the tank, and a timer. The design is the tank size and the run schedule; the components are the same 16mm lines and 2–3 L/h emitters as a field system, just at smaller flow. The smallholder guide covers the pattern.
How much labour does a drip system save on a city plot?
On the watering itself, most of it — the timer runs the plot while the owner is at work, which is the whole point at city land values. The manual routine shrinks to the weekly filter check and the monthly line walk. That's why automation is the default on these plots, not an option — see the automation guide.
Where exactly in Nairobi do you install?
The peri-urban production zones — Embakasi, Rongai, Kawangware, Roysambu, Kibra, the Lang'ata and Ngong Road fringes — and the greenhouse/nursery clusters on the city's corridors. If the plot is on the boundary, the Kiambu or Kajiado page describes the zone better; send the location and we'll confirm coverage.
A Nairobi plot ready to irrigate
Send the plot size, crop plan and water source — the compact design comes back with the numbers, not the guess.