When there's a vacancy in such buildings, however, neighboring techie tenants usually expand into the space before anyone else gets a chance. Which is why such buildings never need to advertise vacancies. While the complex, originally planned to be less expensive to build at the end of the bubble era, wasn't designed with Web startups in mind, it meets all their basic IT demands. I felt more comfortable when there were other IT-related companies inside. Of course, I checked the electrical capacity and other specifications myself, but who's in that building also told me something.
Electrical capacity is of course important for any company using lots of computers.
Older buildings with less capacity may have a hard time attracting tech companies. Initially this design targeted IT departments, but as LANs were implemented everywhere, it became the standard for office buildings. Other possible locations for placing cables include ceilings and walls. CNET in San Francisco, for example, rather decoratively runs cables up its walls and the along its high ceilings. Fiber-optic networks are another popular spec among IT companies.