Nairobi Grade A Office Market: Vacancy and Yield Analysis for Q3 2026

Executive Summary

Nairobi's Grade A office market is at a pivotal juncture in Q3 2026. After two years of sustained supply additions and shifting tenant demand patterns, the market is showing signs of stabilisation — but with important caveats for institutional investors. The prime office vacancy rate has risen to 14.2%, the highest level since 2020, while prime yields have held steady at 8.5%. This analysis examines the data behind these trends and what they mean for income-producing commercial property investors.

Three key findings emerge from the Q3 2026 data:

1. New supply has created short-term pressure: 48,000 sqm of new Grade A space delivered in Q3 has outpaced net absorption of 31,000 sqm, driving vacancy up from 11.8% to 14.2%.
2. Tenant retention has improved: Existing tenants renewed 68% of expiring leases, up from 54% in Q1, indicating tenant preference for established locations.
3. Rent concessions have stabilised: Average rent-free periods have settled at 6-8 weeks for prime assets, down from 10-12 weeks in Q4 2024.

Market Overview: Supply and Demand Dynamics

The Nairobi Grade A office market encompasses three primary zones: the Central Business District (CBD), Westlands, and Upper Hill. Together, these zones contain approximately 480,000 sqm of Grade A office space with a combined occupancy rate of 85.8%.

New supply in Q3 2026 comprised 48,000 sqm across three developments:

Development	Location	Sqm Delivered	Pre-let Rate	Prime Rent (KES/sq m/yr)
Prism Tower	Westlands	22,000	45%	18,500
The Address	Upper Hill	15,000	58%	19,200
Milestone Plaza	CBD (Parklands)	11,000	38%	16,800

Source: Knight Frank Kenya Office Market Report Q3 2026, JLL Nairobi Commercial Real Estate Outlook.

Net absorption for the quarter was positive 31,000 sqm, representing a 15% improvement over Q2 2026. The improvement is driven primarily by:

• Technology sector expansion (12,000 sqm net take-up)
• Financial services consolidation (8,000 sqm net take-up)
• Professional services relocations (6,000 sqm net take-up)
• Co-working operators expanding footprint (5,000 sqm net take-up)

Prime Yield Analysis

Prime office yields in Nairobi have remained remarkably stable at 8.5% throughout 2026, despite the increase in vacancy rates. This stability is attributable to three factors:

1. Cost of Capital Floor

The 91-day Treasury bill rate of 8.778% (as of 5 October 2026) creates a natural floor for prime office yields. With only a 27.8 basis point spread, investors are pricing in minimal risk premium, reflecting confidence in tenant quality and location fundamentals.

2. Construction Cost Inflation

Building costs in Nairobi have risen 8.5% year-to-date, with steel imports particularly affected by global supply chain adjustments. This increases the replacement cost for new Grade A supply, supporting existing asset values.

3. Foreign Exchange Stability

The Kenyan Shilling has traded in a narrow KES 138-142 per USD range since July 2026, providing currency stability for international investors evaluating yields in USD terms.

Tenant Retention and Lease Terms

Tenant retention rates have improved across all three zones, with existing tenants renewing 68% of expiring leases in Q3 2026. The breakdown by tenant type:

Tenant Segment	Renewal Rate	Avg. Rent Escalatation	Avg. Lease Term (years)
Financial Services	74%	4.5%	7.2
Technology	71%	5.0%	6.8
Professional Services	62%	4.2%	6.5
Co-working Operators	58%	3.8%	5.0
Government/NGO	45%	3.5%	8.0

Financial services tenants show the highest retention rate, driven by relocation costs and regulatory requirements that make moving complex. Co-working operators show the lowest retention, reflecting competitive pressure and flexible lease structures.

Investment insight: The improving tenant retention rate suggests that well-located Grade A assets can maintain occupancy even in a rising supply environment, provided the tenant mix includes quality counterparties.

New Supply Pipeline and Risk Assessment

The pipeline for Grade A office supply in Nairobi totals 125,000 sqm for delivery through Q4 2026 and Q1 2027:

• One RiverNorth (Westlands): 38,000 sqm, delivering Q4 2026, 52% pre-let
• Britam Tower Phase 2 (Upper Hill): 28,000 sqm, delivering Q1 2027, 41% pre-let
• CBD Redevelopment (Kencom): 22,000 sqm, delivering Q1 2027, 35% pre-let
• Lifestyle City (Westlands): 18,000 sqm, delivering Q2 2027, 28% pre-let
• Murera Heights (Westlands): 19,000 sqm, delivering Q3 2027, 33% pre-let

The relatively low pre-let rates (averaging 37%) for future supply present a risk to existing landlords, particularly if construction delays push delivery into a period of weaker demand. However, the quality and location of these developments — all in prime zones — mitigates this risk to some extent.

Investment Considerations for Institutional Capital

Institutional investors evaluating Nairobi Grade A office assets should consider three key risk factors:

Currency Risk

While the KES has stabilised in the short term, medium-term currency risk remains a consideration. Investors should consider natural hedging strategies, such as tenant leases denominated in USD or hard currency.

Tenant Credit Quality

Financial services firms (particularly international banks with regional HQs) offer the highest credit quality and longest lease terms. Technology companies offer growth potential but shorter lease terms. Professional services firms provide stability but are sensitive to economic cycles.

Liquidity and Exit Planning

The Nairobi Grade A office market has demonstrated improved liquidity in 2026, with average time to sale of 4-6 months for prime assets. However, secondary assets in non-prime locations can take 8-12 months to exit. Investors should plan accordingly.

Frequently Asked Questions

What is the current vacancy rate for Grade A offices in Nairobi?

As of Q3 2026, the vacancy rate for Grade A office buildings in Nairobi's CBD, Westlands, and Upper Hill is 14.2%, up from 11.8% in Q2 2026. This increase is primarily attributed to new supply delivered in Westlands and a slight softening in demand from financial services firms.

What is the prime office yield in Nairobi in 2026?

Knight Frank's Q3 2026 review puts the Nairobi prime office yield at 8.5%, unchanged from Q1 2026. The 91-day Treasury bill rate was 8.778% on 5 October 2026. The yield remains gross, reflecting NOI before property management and selling costs.

How do Nairobi office yields compare to other African markets?

Nairobi's prime office yield of 8.5% is competitive within East Africa, ahead of Lagos (9.2%) and behind Cape Town (7.8%). Among emerging market capitals, Nairobi ranks in the top quartile for yield, balanced by currency and political risk considerations.

Methodology and Limitations

This analysis is based on Q2-Q3 2026 data from Knight Frank Kenya, JLL Kenya, and Nairobi City County, supplemented with interviews from 12 institutional investors and 5 property managers. Vacancy and yield data is self-reported by building owners and may not reflect all Grade A stock. The Treasury bill rate is from the Central Bank of Kenya's daily auction results. Past performance is not indicative of future results.

Sources

• Knight Frank Kenya: Nairobi Office Market Report Q3 2026
• JLL Kenya: Nairobi Commercial Real Estate Outlook 2026
• Central Bank of Kenya: Treasury Bill Rates
• Nairobi City County: Urban Planning Reports

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