The Floors That Wait in Upper Hill: How Nairobi's Office Glut Is Splitting the Diaspora's Property Bet

In Upper Hill, the lifts still run and the lobbies are still polished, but on too many floors the only sound is the air conditioning. Walk past the commercial blocks that line the ridge above the city and the same two words repeat on banner after banner: To Let. A decade ago these towers were the proudest expression of Nairobi's ambition. Today some of them are monuments to a bet that did not pay off as planned, and the people quietly absorbing that lesson include thousands of Kenyans who never set foot in the building they helped finance.

For a generation of the diaspora, a stake in Kenyan property was the safest story they told themselves. A nurse in Manchester, an accountant in Dallas, a care worker in Doha — each could send money home, watch a slab go up floor by floor in photographs on a family WhatsApp group, and feel that their years abroad were buying something permanent. Now the market that anchored that feeling is changing shape, and the change is worth understanding before the next instalment is wired home.

A skyline that outran its tenants

The numbers tell a sobering story. According to the latest market assessment from property consultancy Knight Frank, office vacancy across many of Nairobi's commercial sub-markets has been running between 15 and 20 percent, with Upper Hill, Westlands and Kilimani among the hardest hit. Landlords have responded the way landlords do when supply outpaces demand: cutting rents, dangling extended rent-free periods, and offering more flexible leases to anyone willing to sign.

That glut did not appear overnight. It was built, deliberately, on a forecast. Through the last decade developers watched multinational firms, banks and technology companies pour into Nairobi and concluded that the city's status as East Africa's commercial hub would keep absorbing whatever they put up. Billions of shillings went into gleaming towers on the assumption that tenants would always follow. For years that assumption held. Then the supply caught up with the demand, and kept going.

Knight Frank's own figures show how large the overhang grew. The Nairobi metropolitan area closed 2025 with roughly 3.4 million square feet of surplus office space — a heavy burden, even though it had eased from about 5.7 million square feet a year earlier. The market-wide vacancy rate, on the same measure, fell to around 15 percent from just over 19 percent. The hole, in other words, is being filled, but slowly, and not evenly.

The market is splitting in two

The most important shift is not that demand vanished. It is that demand became picky. Mark Dunford, the chief executive of Knight Frank Kenya, has described the trend as a "flight to quality" — tenants concentrating in a narrow band of premium buildings with green certifications, modern amenities and recognised sustainability credentials, while older and more conventional stock is left to compete on price alone.

The result is a market splitting into two tiers that increasingly behave like different economies. At the top, prime offices have done well; occupancy in that segment climbed above 80 percent by late 2025, lifted by sought-after addresses such as Purple Tower and The Mandrake, and Knight Frank expects prime rents in Westlands and Upper Hill to edge up rather than down. Below that line sits everything else — the perfectly serviceable but undistinguished blocks that once filled easily and now sit waiting. Two buildings can stand on the same street and tell opposite stories about the health of Kenyan real estate.

Why this reaches the diaspora

It is tempting to read all this as a problem for big developers and pension funds, far from the concerns of a Kenyan abroad. That would be a mistake. Remittances are now one of Kenya's largest sources of foreign exchange, and a substantial share of that money has historically flowed into bricks and mortar — land, apartments, and the commercial units that families buy as a retirement plan or a source of rental income. When the diaspora invests back home, property is often the instrument of choice precisely because it feels tangible in a way a share certificate never does.

That tangibility can disguise risk. A relative managing a project on the ground, a developer promising guaranteed returns, a half-finished commercial plot marketed to overseas buyers as a sure thing — these arrangements rest on the belief that any completed office or shop will find a tenant. The current oversupply punctures that belief. An investor who put money into a mid-tier commercial unit in a crowded sub-market may now find it harder to let, slower to appreciate, and more dependent on rent concessions than the original pitch ever suggested. The lesson is not that Kenyan property is a bad investment. It is that location, quality and building specification now matter far more than they did when almost anything would rent.

What changed inside the office

Part of the explanation lies in how companies use space at all. The same forces reshaping office demand in London, Toronto and the Gulf have reached Nairobi: hybrid working, tighter corporate budgets, and a growing insistence on energy-efficient, well-managed buildings that lower running costs and meet international environmental standards. Firms that once took whole floors as a matter of prestige now take less, and they want better. Capital that developers might once have funnelled into yet another office tower is being redirected into residential housing, logistics and warehousing, and mixed-use schemes that blend homes, shops and workspaces in a single footprint.

For the city, that rebalancing is arguably healthy. Nairobi's office overhang is a textbook example of the danger of speculative construction in a fast-growing economy, where confidence outpaces the underlying need. The correction now under way — fewer new towers, more attention to what tenants actually want — points toward a more sustainable market, even if the adjustment is uncomfortable for those holding the wrong assets.

A calmer way to read the risk

None of this argues for panic, and the data does not support the gloomiest headlines. The surplus is shrinking. Prime occupancy is rising. The phrase that keeps recurring in the analysis is not "collapse" but "selective" — a market rewarding quality and punishing the assumption that any address will do. For the diaspora, the practical takeaway is straightforward and old-fashioned: due diligence beats faith. Before the next transfer goes toward a commercial unit back home, the questions worth asking are the ones a cautious local investor would ask anyway. What is the vacancy rate in that specific sub-market? Who are the existing tenants, and on what terms? Is the building the kind that benefits from the flight to quality, or the kind being left behind by it?

The towers above Upper Hill are not going anywhere. But the era in which their value could be taken for granted is ending, and the families financing Kenya's skyline from abroad have the most to gain from understanding why. The smartest diaspora money has always treated distance as a reason for more scrutiny, not less. In a market that has learned to say no, that instinct has rarely mattered more.