Mr. Ryan said a developer could produce far greater revenue by putting up about seven new buildings, each for five or six tenants.
This phase is usually not funded by a publisher, however good publishers may require developers to produce plans during pre-production.
Other developers, too, are producing more open-ended building kits aimed at letting young people create and program their own computerized designs.
By 2006, developers were producing fewer games in this space, estimated at half the number seen in 2005.
The developer produced a balance sheet, pointed to the bottom line and said, "That's a beautiful building."
Very often the developers will produce figures showing that the building would be impossibly expensive to restore.
City officials had predicted that under the revised zoning, developers would produce an additional 36,000 new market-rate apartments in the next decade.
It is likely that the developer, client or the architect's representative may produce it.
The developers have also produced a portable version of the software, available as both U3 and standalone downloads.
The study was conducted in 1993-94, before the developers produced their plan, and assumed a more modest, single-runway airport.