Nairobi

The UN headquarters is the demand engine. The United Nations Office at Nairobi in Gigiri is the only UN Secretariat headquarters in the Global South — more than 4,000 personnel across 88 UN offices, almost 6,000 UN staff in Kenya, and about 10,000 dependents. A USD 340 million expansion launched in May 2026 will make Nairobi the third-largest UN duty station after New York and Geneva. Add embassies, the regional NGO sector and multinationals, and you get steady, employer-funded demand for international school places. ↗

The market has two tiers and no scoreboard. One aggregator counts 52 international schools in Nairobi. At the top, a handful of schools charge KSh 2.5-4.85 million a year; a broad mid-market runs at KSh 80,000-250,000 per term. Kenya publishes no inspection ratings — the closest thing to independent quality evidence is international accreditation (CIS, BSO/ISI inspections, IAPS) and membership of AISA, the Association of International Schools in Africa, which is headquartered on this ecosystem. ↗

It is not only an expat market. Kenya’s professional class fills the British-curriculum schools alongside diplomatic families — the Braeburn group’s investor materials describe a two-brand strategy, with the Braeside brand at lower fees attracting a majority-national intake. That dual demand keeps waitlists alive even when expat numbers dip.

International School of Kenya (ISK). The US/IB flagship on Kirawa Road at the Kitisuru-Runda border — North American curriculum with the IB Diploma, MSA-accredited, AISA and Round Square member, non-profit, day-only. It descends from the Nairobi International School and has been US embassy-linked since 1976. Reported 2026/27 tuition: USD 30,800 (Kindergarten) to USD 37,330 (Grades 11-12), plus a one-time USD 11,000 capital levy, a USD 400 application fee and USD 2,200 for the bus. For trajectory: 2017-18 fees were USD 15,163-29,072. ISK’s own site carries the current table — confirm before budgeting, because reported figures vary. ↗

Brookhouse Schools (Karen and Runda). British IGCSE, A-Levels and BTEC; day tuition up to KSh 2.88 million (Year 13) and boarding up to KSh 4.55 million — Karen campus only. Its Nsouli Scholars Programme funds outstanding 13-18-year-olds. ↗

The Braeburn group. Ten schools across Kenya and Tanzania as of 2025 — Gitanga Road in Lavington (1979) is the original. The flagship Braeburn Garden Estate published 2025/26 day fees of KSh 928,800 (Nursery) to KSh 2,576,000 (Year 12), with sibling discounts of 10-40 per cent; it holds CIS and BSO/ISI accreditation plus COBIS, IAPS and AISA memberships — the fullest external paper trail in the market. Braeside Lavington, the group’s value brand, runs KSh 688,798-1,465,000. ↗

Peponi School (Ruiru) — British, boarding and day, senior school ages 13-18: published 2025/26 day fees of KSh 2,929,110, boarding KSh 4.12-4.36 million. Hillcrest International (Karen) — British since 1965: KSh 867,900-2,908,500 in 2024/25, reported up to KSh 3,083,099 for Years 12-13 in 2026/27. ↗

And the honest gaps. Rosslyn Academy — the Christian American school in the Gigiri/Runda belt, popular with US embassy and NGO families — publishes no fees at all. The German School Nairobi (Abitur pathway) likewise keeps its schedule private. For these, the admissions office is the only source; the verification section below shows how to cross-check what you are told.

Kenya’s boarding culture is the thing Gulf-market parents least expect. St Andrew’s School, Turi — founded in 1931 by Peter and Jean Lavers, on a 350-450 acre highland estate at Molo, about 200 km north-west of Nairobi at 2,500 metres — is its emblem: a non-profit Christian boarding school of roughly 550 students aged 5-18, with a private airstrip, BSO/ISI inspection, and AISA, IAPS and Round Square memberships. Senior full boarding runs to roughly KSh 3.9 million a year (prep boarding KSh 2,559,000-3,072,000 for Kenyan residents; non-residents pay in USD), with a KSh 11,800 assessment fee and a deposit of 50 per cent of one term’s boarding fees. ↗

Turi is not alone: Peponi boards in Ruiru, Brookhouse boards at Karen, and Greensteds International near Nakuru (up to about KSh 2.68 million day, boarding higher) rounds out the upcountry circuit. Why families board: the schools were built for it, Nairobi traffic makes some day commutes genuinely worse than weekly boarding, and the upcountry campuses offer a childhood — horses, forests, altitude — the city cannot. If your posting is Nairobi but your child would thrive in a British boarding environment, this is one of the few non-Western markets where that option is native rather than imported. ↗

Nairobi’s international schools sit in two clusters on opposite sides of the city, and the choice between them is usually made by your employer’s address. ↗

Karen/Langata — the older, greener, equestrian-flavoured south-west — holds Brookhouse Karen, Hillcrest, The Banda School and the Braeburn Lavington campuses; the Karen-Langata corridor is the densest British-school concentration in the country. Runda/Gigiri — the diplomatic north — holds ISK, Rosslyn Academy, SABIS Runda and Brookhouse Runda, minutes from the UN complex and the US embassy. Peak commutes: 10-15 minutes from Runda to Gigiri, but 40-55 minutes from Karen. A UN or embassy posting points north; a private-sector job on the southern corridor points to Karen. Crossing the city daily for school is the classic Nairobi mistake.

Security and housing follow the cluster. Runda/Gigiri runs diplomatic-grade: armed patrols, boom barriers, and compounds built to embassy security-clearance standards — 24/7 manned access, electric fencing, borehole and full backup generator. Diplomatic-segment rents run USD 2,500-4,500 a month for a 3-bed and USD 3,500-7,000+ for a 4-bed standalone, usually paid by the employer with a diplomatic clause in the lease. Karen relies more on estate-level security, which varies by compound. ↗

The UN’s own newcomer guide lists the niche national schools: the Lycée Français International Denis Diderot (AEFE-approved, Kilimani near Yaya Centre; reported fees of roughly KSh 370,000-630,000 a year — a fraction of the Anglo flagships), the German School Nairobi (Abitur), a Swedish School in Lavington (requiring at least one Scandinavian-speaking parent), and a bilingual Netherlands School. Diderot opens registration each March and admits mid-year by derogation — unusually flexible for the market. ↗

Should you consider a Kenyan-curriculum school? Know what you would be joining: Kenya replaced the 8-4-4 system with the Competency-Based Curriculum (2-6-3-3-3) from 2017, renamed it Competency-Based Education (CBE) in April 2025, sat the first KJSEA assessment in October 2025, and will hold the last KCSE exams in 2027 as the first CBE cohort enters senior secondary in 2026. The reform is mid-flight — a real risk for a two-to-three-year posting, and the reason internationally mobile families overwhelmingly choose the international track for portability. ↗

Billing currency splits by school: ISK publishes in USD (Kenyan citizens may pay in shillings with proof of citizenship), while Brookhouse, Peponi, Hillcrest and the Braeburn group bill in KSh. Watch the one-time charges — ISK’s USD 11,000 capital levy and Turi’s 50 per cent-of-term deposit are the kind of figures education allowances routinely fail to cover. ↗

Package questions to settle before arrival. UN and embassy education grants are typically generous but capped by grade — confirm the cap against ISK’s senior fees specifically, because that is the most expensive line in the market. Ask whether the employer pays the school directly or reimburses; whether the capital levy, bus and lunch are inside the allowance; and how fee increases mid-contract are handled. Fee escalation here is real: ISK’s senior tuition rose roughly 28 per cent over the decade from 2017-18 to 2026-27.

Nairobi runs two intakes — September and January — and the popular schools carry waiting lists for both, with entrance assessments at most flagships. Relocation guidance is consistent: apply well before you arrive, and treat the January intake as a genuine second chance rather than a mid-year scramble. The French lycée’s March registration and mid-year derogation make it the most flexible quality option. ↗

With no Kenyan ratings, verification is your job. The working toolkit:

• AISA and the accreditors. Check the school on the AISA member directory, then its claimed accreditations — CIS, MSA, BSO/ISI, IAPS, COBIS — on each body’s own site. Braeburn Garden Estate’s BSO/ISI report is the model: ask any shortlisted school for its most recent inspection document.
• The UN newcomer guide. UNON’s own Karibuni guide lists the schools its community actually uses — a quietly authoritative shortlist.
• Parent networks. Nairobi expat Facebook groups, InterNations and r/Kenya carry current fee quotes and candid reviews — treat as leads to verify, never as fact.
• On the visit, ask for: fee schedule in writing (including one-time charges), staff-turnover figures, university destinations, and — in Runda/Gigiri — confirmation the school and your housing both meet your employer’s security standards.

Every figure above traces to our Nairobi research dossier. Core sources: the United Nations (UNON expansion briefings and the official Karibuni newcomer guide), the International Schools Database’s verified fee pages (Braeburn Garden Estate, Braeside, Peponi, Hillcrest), the Good Schools Guide (Braeburn, St Andrew’s Turi), Business Kenya’s August 2026 fee round-up (ISK, Brookhouse, Peponi, Turi), the Lycée Denis Diderot’s own financial regulations, and Kenyan education press for the CBC/CBE transition. Property and relocation guides (Afriqahome, Goldstay) supplied the neighbourhood and security detail, graded low confidence; forum material is attributed as reported experience.

Kenya’s data is better than West Africa’s but thinner than the Gulf’s, and school fees here are re-set annually. This page was researched on 2 September 2026 and is re-verified each academic year — see our research standard for how claims are graded, and corrections if you spot something stale.