The end product is also slightly different from the original concept, because the builder knew how to approach making that change in plans:

* He had a good sense for the aesthetics of the design;

* He recognized an opportunity to enhance that theme;

* He effectively communicated his ideas to the client and his supervisors;

* They collaborated on making the change.

The tower now flares out at the bottom, about 6 inches starting about 10 feet above ground, resembling a sturdy lighthouse. Builder Juan Dellanos once lived near an island lighthouse, and he thought the HGTV Dream Home's tower would benefit from that suggestive connection to the sea.

"I love lighthouses, and I know they always flare out at the bottom," says Juan. "I put that idea out there, they liked it, and I'm glad they did."

It worked. But it never would have happened, says Juan, if the parties hadn't already developed a trusting relationship built on communication and respect.

Enlighten us with examples, good and bad, of how you've handled design changes. Send us your wise advice.