After trials last year, NBN Co is officially offering fibre-to-the-building options for unit blocks and offices as of today. Just how fast will those services be?
Fibre-to-the-building (also sometimes described as fibre-to-the-basement) is essentially the option for premises which aren't scheduled to be connected to fibre under fibre-to-the-premises (FTTP).
Within the building, connectivity will be via entirely existing wiring — potentially a nuisance in older unit blocks with rubbish internal copper. As with the existing FTTP schemes, negotiating with body corporates is also likely to be fiddly.
During trials, NBN Co said average speeds of 89MBps for downloads and 36Mbps for uploads were achieved — not a terrible outcome relative to the top speeds offered for fibre-to-the-premises. However, those results might not replicated on a broader scale. NBN Co says 6000 buildings are already being set up for FTTB, and ultimately it expects to service more than a million premises this way.
Update: Here's a video demonstrating the trial from Telstra.