Catching up on a backlog of old news. Here's a story out of Austin, Texas:

In about seven hours, Austin builder Gary Bellomy used a 100-foot-tall, 100-ton crane to erect a pair of townhomes that are expected to earn the top rating from Austin Energy's Green Building Program.

Not bad, considering a project this size would typically take months to build. The secret: modular construction.

Companies mentioned:

• Palm Harbor Homes
• Discovery Custom Homes
• Town Builders
• KRDB

Read the full article for details.