Nairobi Water · Region · Updated 2026-10-22
Nairobi Water Roysambu Region
Roysambu Region is one of the regions Nairobi City Water and Sewerage Company — Nairobi Water — runs Nairobi’s water and sewer services through. It serves one distribution zone, each fed from a reservoir.
Its distribution zones
| Zone | Area | Places | Supplied from |
|---|---|---|---|
| 6 | Kiambu Road – Roysambu | Marurui Njathaini, Ridgeways -Mirema | Kiambu (59,000 m³) |
Supply days
Kiambu Road – Roysambu: Parts of Kiambu Road area have supply Wed-Fri. Ridgeways area has supply Wed-Fri. Mirema area has supply Fri-Mon. Kenyatta University and KIST areas have 24/7 supply.
As recorded on the Nairobi Maps water zones layer. Nairobi Water’s supply day and interruption notices are the current word.
Connecting a plot here
Check the plot on the map first: the City Water Reticulation layer shows the water mains near it and the Trunk sewer layer the trunk sewers. Then see how to apply for a water connection or a sewer connection. City Water Reticulation and Trunk sewer are add-on layers: each is bought once, on any plan, and kept — see plans and pricing. The Water Reservoirs layer comes with Silver and above.
Questions
Which areas does Nairobi Water’s Roysambu Region serve?
Its distribution zone covers Kiambu Road – Roysambu, including Marurui Njathaini and Ridgeways -Mirema.
How do I contact Nairobi Water’s Roysambu Region?
Nairobi Water’s “Know your region” page gives each region’s contacts.
Is Nairobi Maps part of Nairobi Water?
No. Nairobi Maps is an independent map of Nairobi’s land and the services around it, for checking a plot before you apply. Nairobi Water — Nairobi City Water and Sewerage Company — decides every connection.
Nairobi Maps is not part of Nairobi Water. This guide explains the usual route from Nairobi Water’s published instructions; requirements, fees and supply days change, so confirm them with Nairobi Water.