Boulder County is considering building code changes that could add hundreds of thousands of dollars to the cost of building a new home.

At a public meeting Tuesday, the county's Board of Review will hear comments on a plan to require all new homes of 4,000 square feet or more to produce as much energy as they consume by 2022. Currently, those rules apply to any new home of 6,000 square feet or more.

However, the county's top building official told the Daily Camera the new proposal might not make it through the approval process. 

"I'm not sure we're going down to 4,000," Gary Goddell said. "This may be the toughest one, because it's a house size that's being built quite a bit."

County commissioners are scheduled to approve the new building code on Oct. 22.