Registration block · Active
Nairobi Block 21 (Kenya High School)
Nairobi Block 21, Kenya High School, is a land registration block in Nairobi: parcels here are numbered Nairobi/Block 21/ and the plot number. It covers about 2 km² in Kileleshwa and Kilimani wards and holds about 458 parcels.
From the survey blocks and parcel cadastre on the Nairobi Maps map. Updated 2026-10-24.
Finding a plot in Block 21
Type the block and plot number into the search box on the map — 21/ followed by the plot number, or Nairobi Block 21/ 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.
Zoning in Block 21
| Zone | Share of block | Most floors | Coverage | Plot ratio | Smallest plot |
|---|---|---|---|---|---|
| Lavington | 56% | 1 | 50% | 100% | 0.05 ha |
| Kileleshwa | 29% | 30 | 50% | 1,500% | 0.05 ha |
| Riverside Drive | 16% | 30 | 50% | 1,500% | 0.05 ha |
Wards
Blocks next to Block 21
- Block 2 · Muthangari
- Block 3 · ChristChurch
- Block 4 · Church Road
- Block 12 · Bernhard
- Block 13 · Lavington
- Block 22 · Riverside
- Block 23 · Kileleshwa
- Block 26 · Arboretum
Survey plans for Block 21
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
Commences at co-ordinate (252290mE, 9858901mN) along Olenguruone drive thence north 200 meters to Mzima Springs road. Thence north easterly along mzima Springs road for 860 meters to co-ordinate (252708mE, 9859640mN). Thence North 195 meters to co-ordinate (252759mE, 9859829mN). Thence north westerly 217 meters to coorodinate (252598mE,9859925mN). Thence north 295 meters to co-ordinate (252675mE, 9860208mN). Thence easterly along Nairobi river for 1530 meters to co-ordinate (252399mE, 9860117mN). Thence south 173 meters to coordinate (254011me, 9859940mN). Thence south west 154 meters to co-ordinate (253902mE, 9859830mN). Thence south 225 meters to co-ordinate (253963mE, 9859634mN). Thence easterly along the stream for 450 meters to coorodinate (254320mE, 9859573mN). Thence south 270 meters to Mandera road. Thence east along Mandera road to Gichugu road junction. Thence south along Gichugu road to Kandara road. Thence south westerly 1500 meters along Kandara road onto Gatundu road to Olenguruone drive. Thence 820 meters along Olenguruone drive back to the commencing point.
The official description of the block’s boundary, as recorded. Coordinates are in metres on the survey grid.
Questions about Block 21
What is Nairobi Block 21?
A land registration block in Nairobi, known as Kenya High School. Parcels in it are numbered Nairobi/Block 21/ followed by the plot number, and the block has its own Registry Index Map sheets.
How many parcels are in Nairobi Block 21?
About 458 on the Nairobi Maps cadastre; half of them are smaller than 0.231 ha.
Where is Nairobi Block 21?
In Kileleshwa and Kilimani wards, Dagoretti North sub-county, covering about 2 km².
How do I find a plot in Nairobi Block 21?
Type the block and plot number into the Nairobi Maps search box — for example 21/ followed by the plot number, or Nairobi Block 21/ and the plot. The map opens on the parcel with its size, zoning and survey plans.