Strong leasing conditions deserve attention, but a market average is not the income statement for a specific office. Floor, fit-out, parking allocation, tenant covenant and building management can change both the achievable rent and the costs of ownership.

Before recommending an acquisition, I would test the asking price against recent comparable deals and model the net income after service charges, vacancy and future fit-out. I would also consider how easily the space could be leased or sold if the investor’s plans change.