Ol’Lessos Mixed Day Senior School (formerly called Ol’Lessos Mixed Day Secondary School) is a C4 Public Mixed Senior School that is physically located in Nandi County, Nandi East Sub County in the Rift Valley Region of the Republic of Kenya. This article provides all the details about Ol’Lessos Mixed Day Senior School, including: the school’s cluster, level, UIC Code, Knec Code, Admissions and location.
This Day Senior School forms part of the Nandi Education Network and has fully transitioned to a Senior School that offers Competency Based Education (CBE) Curriculum to Grade 10, 11 and 12 Learners.
Ol’Lessos Mixed Day Senior School School’s Basic Data and National Information.
| School’s Old Name | Ol’Lessos Mixed Day Secondary School |
| School’s New Name | Ol’Lessos Mixed Day Senior School |
| Cluster | C4 |
| Gender | Mixed |
| Accomodation Type | Day |
| Region | Rift Valley |
| County | Nandi |
| Sub County | Nandi East |
| UIC Code | 6ZHP |
| KNEC Code | 29541105 |
| Type of School | Public |
| Regular or SNE | Regular |
| Disability Type | None |
Ol’Lessos Mixed Day Senior School operates as a fully Senior School offering the Competency Based Education (CBE/CBC) Curriculum. Students transition to this school from Junior School after sitting for the Kenya Junior School Education Assessment (KJSEA); which is a national assessment for Grade 9 learners under the Competency-Based Curriculum (CBC/ CBE). It assesses students in nine learning areas to evaluate their readiness to transition into Senior School.
Students who join Ol’Lessos Mixed Day Senior School at grade 10 specialize in any one of the following three main CBE pathways:
- STEM (Science, Technology, Engineering, and Mathematics): Focuses on innovators and problem-solvers. It branches into Pure Sciences, Applied Sciences, and Technical Studies, leading to careers like medicine, engineering, and IT.
- Social Sciences: Designed for communicators and leaders. It includes tracks in Languages, Literature, Humanities, and Business Studies, preparing students for fields like law, journalism, and education.
- Arts & Sports Science: For creative minds and athletes. It features tracks in Visual Arts, Performing Arts, Music, and various sports disciplines, fostering careers in the creative and sports industries.
Ol’Lessos Mixed Day Senior School’s Background and History.
Ol’Lessos Mixed Day Senior School, historically known as Ol’Lessos Mixed Day Secondary School, has played a very key role in the Kenyan Education Sector and more particularly in Nandi county; where it is domiciled.
The school has grown over the years and is now a fully recognized C4 Public Senior School. In January 2026, Ol’Lessos Mixed Day Senior School admitted the first grade 10 learners under the CBE Curriculum.
Location of Ol’Lessos Mixed Day Senior School.
Ol’Lessos Mixed Day Senior School’s exact physical location is in Nandi County, Nandi East in the Rift Valley Region of the Republic of Kenya.
What to know about Rift Valley Region’s Senior Schools.
Rift Valley is the home of some of the best and highly competitive Senior Schools in Kenya. Ol’Lessos Mixed Day Senior School, just like other Senior schools in the region, favourably compete in co-curricular activities, academics and Infrastructural development. Before joining Ol’Lessos Mixed Day Senior School, confirm the pathways it offers.
Frequently Asked Questions About Ol’Lessos Mixed Day Senior School.
1. What is the UIC Code for Ol’Lessos Mixed Day Senior School?
The UIC Code for Ol’Lessos Mixed Day Senior School is 6ZHP.
2. Is Ol’Lessos Mixed Day Senior School a Boarding or Day School?
Ol’Lessos Mixed Day Senior School is a Day Senior School.
3. What CBE Grades are taught at Ol’Lessos Mixed Day Senior School?
Ol’Lessos Mixed Day Senior School offers CBE Senior Schools Grades at Grade 10, 11 and 12.
4. What is the Knec Code for Ol’Lessos Mixed Day Senior School?
The Official Knec Code for Ol’Lessos Mixed Day Senior School is 29541105.
5. In Which County is Ol’Lessos Mixed Day Senior School Found?
Ol’Lessos Mixed Day Senior School is located in Nandi County.
6. Does Ol’Lessos Mixed Day Senior School admit Boys, Girls or Both?
Ol’Lessos Mixed Day Senior School is a Mixed Senior School.
7. What was Ol’Lessos Mixed Day Senior School’s Fomer Name under the 8-4-4 Education System?
Ol’Lessos Mixed Day Senior School was formerly called Ol’Lessos Mixed Day Secondary School.
8. What is Ol’Lessos Mixed Day Senior School’s New Cluster?
Ol’Lessos Mixed Day Senior School is now classified as a C4 Senior School.
9. Is there SNE Support for Learners at Ol’Lessos Mixed Day Senior School?
Ol’Lessos Mixed Day Senior School offers support for Regular learners. The school’s Disability Type is None.
10. Where is Ol’Lessos Mixed Day Senior School Located?
Ol’Lessos Mixed Day Senior School is found in Nandi East Subcounty of Nandi County; in the Rift Valley Region of the Republic of Kenya.
11. Is a Ol’Lessos Mixed Day Senior School Private or Public School?
Ol’Lessos Mixed Day Senior School is a Public School.
12. What CBE Pathways are offered at Senior School?
Senior schools offere 3 pathways; STEM, Social Sciences and Arts and Sports.