Recent Olympic hosts have staged large parts of the Games in venues that already existed or in temporary structures. The shift followed a long record of purpose-built stadiums that had no use once the event finished.
Olympic demand is a spike, not a level
A Games requires simultaneous capacity across many sports for a fortnight, and that capacity vastly exceeds what any city needs in an ordinary year.
A velodrome or an aquatics centre built for peak Olympic demand serves a much smaller community afterwards, often at a scale that cannot cover running costs.
The mismatch is structural rather than a planning error, because the requirement genuinely exists for two weeks and genuinely does not exist afterwards.
Maintenance costs outlive the event
Large venues require heating, security, structural inspection and repair regardless of how often they are used, and those costs fall on public bodies for decades.
Facilities left without an anchor tenant have deteriorated visibly in several host cities, becoming symbols of the expenditure rather than of the event.
The reputational damage from those images has influenced later bidding decisions at least as much as the financial analysis has.
Bidding rules now reward existing capacity
Evaluation criteria have been revised to favour bids using venues that already exist, including facilities in other cities and occasionally other countries.
Temporary structures are explicitly encouraged, since a stand erected for the Games and removed afterwards leaves no ongoing liability.
The change also lowers the barrier to bidding, which matters because the number of cities willing to bid had fallen sharply.
Dispersal has its own costs
Using venues across a wide area increases travel for athletes and spectators and complicates security, which is priced per site rather than per event.
The compact Games, in which most venues sit within a short distance, was itself a design goal for many years and delivered genuine operational benefits.
Hosts now trade compactness for reduced construction, and the resulting Games are more spread out and logistically more complex.
Legacy planning has become a formal requirement
Bids must now specify the intended use of every permanent venue after the Games, including who will operate it and how it will be funded.
Committing an anchor tenant before construction changes the design, since a stadium built for a resident club differs from one built for a ceremony.
The requirement does not guarantee success, but it forces the question to be answered before the money is spent rather than afterwards.
