Registration block · New block
Nairobi Block 251 (Kariobangi)
Nairobi Block 251, Kariobangi, is a land registration block in Nairobi: parcels here are numbered Nairobi/Block 251/ and the plot number. It covers about 1.2 km² and holds about 2,555 parcels.
From the survey blocks and parcel cadastre on the Nairobi Maps map. Updated 2026-10-24.
Finding a plot in Block 251
Type the block and plot number into the search box on the map — 251/ followed by the plot number, or Nairobi Block 251/ and the plot. Capital letters, spaces and words like “Nairobi” or “Block” do not matter. The map opens on the parcel, with its size, its zoning and its survey plans. The details behind a parcel are for Gold and Platinum members; the outlines are free to see.
Survey plans for Block 251
The Registry Index Map sheets for this block show every parcel in it with its number. On the map, tap the block in the Survey Blocks layer: each sheet is listed and can be bought on its own by Gold and Platinum members. A parcel’s own survey plan (FR) is in its details.
The block’s gazetted boundary
Nairobi Block 251 commences at a point of intersection with Nairobi Block 145 (Baba Dogo) at (263938.65mE, 9862439.65mN) and continues easterly in a straight line for a distance of 1074.69 meters to point (265010.21mE, 9862386.73mN) which intersects with River Mathare. The boundary takes a curvilinear shape along the river southerly to point (264762.23mE, 9862082.66mN), whence it takes southerly turn and continues for a distance of 272.61meters to point (264746.35mE, 9861807.23mN); then another south westerly turn and continues for a distance of 868.40m to point (264180.99mE, 9861150.42mN). The boundary further takes a southerly turn and continues for a distance of 453.59 meters to a point of intersection with River Nairobi at (264189.46mE, 9860699.57mN). At this point the boundary takes a westerly direction and continues for a distance of 294.69 meters to point (263895.58mE, 9860659.47mN) which intersects with Nairobi Block 213 and Nairobi Block 130 on outer Ring Road. It then takes a northerly and continues along Outer Ring Road to point (263824.03mE, 9862084.79mN) which intersects with Baba Dogo Road. The boundary continues along Baba Dogo Road back to point (263938.65mE, 9862439.65mN). Nairobi Block 251 abuttals are Nairobi Block 145 (Baba Dogo), 246, 174 and 130 on the West, Nairobi Block 240 on the North, Nairobi Block 217 and 175 to the East and Nairobi Block 169 to South.
The official description of the block’s boundary, as recorded. Coordinates are in metres on the survey grid.
Questions about Block 251
What is Nairobi Block 251?
A land registration block in Nairobi, known as Kariobangi. Parcels in it are numbered Nairobi/Block 251/ followed by the plot number, and the block has its own Registry Index Map sheets.
How many parcels are in Nairobi Block 251?
About 2,555 on the Nairobi Maps cadastre; half of them are smaller than 0.0167 ha.
How do I find a plot in Nairobi Block 251?
Type the block and plot number into the Nairobi Maps search box — for example 251/ followed by the plot number, or Nairobi Block 251/ and the plot. The map opens on the parcel with its size, zoning and survey plans.