The neighborhood is the current home of former President George W. Bush.
"We are here because we believe he is guilty of high crimes and misdemeanors and crimes against humanity, and just because he is not president anymore, those crimes did not stop," Sheehan said.
The event also brought out about a dozen people protesting the demonstration and about two dozen members of the media.
"Leave Bush alone," Bush supporter Chuck Herman said. "He had to put up with this for eight years. He's not president anymore, and there is nothing they can do."
But Sheehan said this is one war she's not willing to concede.
"I don't have an option of getting over it," she said. "I will never be able to get over the death of my son."
The latest news from around North Texas.
Sheehan, whose son Casey was killed in Iraq, has a history of conducting protests anywhere Bush can be found. In August 2005, Sheehan held an extended protest outside of Bush's ranch in Crawford while the president was on vacation.
Monday's march was sponsored by the Dallas Peace Center, which has been involved in protests with Sheehan since 2005.
Carrying a sign that read, "For what noble cause," Sheehan led the protest walk from Preston Royal Shopping Center to John J. Elementary School, across from Bush's home.
Before the march began, former first lady Laura Bush said she was sorry her neighbors had to deal with protesters.
"I'm sorry for our neighbors, that they have to put up with that," she said. "That's too bad. But the fact is, it's just what happens."
The U.S. Secret Service and Dallas Police were on guard to ensure the protest remained peaceful.
Sheehan has been in Dallas since Saturday to promote her new book. She said Monday that the march was not timed to generate publicity for the book.