The top builders have proven their ability to grow quickly. Now the question is how much more of the market they'll control in the future.

Every year, we have to outdo ourselves, bring thousands of builders through our house, and devote 50 pages of our magazine to it.

Researchers were amazed at the messes they encountered.

We've envisioned it as an artist's studio, although it can have other uses. But it certainly isn't large enough for anyone to live there.

What we decided to do ... was visit houses in which people had lived for a year, to find out exactly how they used those spaces, and see whether that reality was the same as that portrayed in builder model homes.