A home construction project has people in Fairfax County talking — and leaders reexamining building rules.

A three-story addition going up in the Greenbriar neighborhood towers over most of the surrounding homes.

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"I just saw the house. It’s interesting. It’s this big huge wall,"

"It would be ugly in a field all by itself. That’s how bad it is,"

Those are just some of the reactions from people who drove down Marble Lane on Tuesday to see what everyone is talking about.

But for Courtney Leonard, it’s no drive-by spectacle.

The enormous addition is right next door to her single-story home.

"I think the real concern came when the second level went up," Leonard said.

And when the addition grew to three stories — the re

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