A yes vote on Question 7 in November would cut Needham's most common minimum lot size in half, and U.S. Rep. Jake Auchincloss wants residents to know it.

Auchincloss, a Newton Democrat representing the 4th District, endorsed the statewide ballot measure at a Wednesday, Aug. 5 town hall hosted by the Charles River Regional Chamber of Commerce in Needham. If approved by voters on Nov. 3, Question 7 would allow single-family homes on any residentially zoned lot of at least 5,000 square feet, provided the lot has public water and sewer service and at least 50 feet of frontage.

That matters in Needham. The town's Single Residence B district, which covers 87% of its single-family-zoned land, currently requires a minimum of 10,000 square feet and 80 feet of frontage, according to the town's zoning bylaw. Question 7 would effectively halve that lot-size floor.

"We're delaying the ability of millennials, of Gen Z, to achieve that first rung of the American dream, which is your own home," Auchincloss said at the event, according to MassLive. "... If you are working hard, giving back to your community, if you're obeying the law, you should be able to buy your own home by the time you're 30 years old."

What Question 7 would do

Andrew Mikula, a housing economist at the Pioneer Institute who chairs the campaign supporting Question 7, also spoke at the Needham event. He noted that 5,000 square feet is slightly larger than an NBA basketball court, while the median Massachusetts single-family lot runs between 11,000 and 14,000 square feet. Many communities require half an acre or more.

Mikula estimates the measure would produce 2,000 to 6,000 new homes per year statewide, depending on market conditions, according to the Boston Globe. His campaign has raised $1.7 million so far.

No formal opposition campaign has emerged. Massachusetts Municipal Association Executive Director Adam Chapdelaine has raised concerns about local control, water and sewer capacity, and the lack of affordability guarantees, but says the organization has no plan to mount a formal campaign against the measure.

Needham's parallel zoning debate

The ballot question arrives as Needham's Planning Board separately works on Large House zoning amendments targeting the Single Residence B district. Planning Board Chair Justin McCullen said at a May 19 meeting that his goal was to have something ready for fall Town Meeting. The board's July 7 agenda included continued discussion of building height, front yard setbacks and half-story floor area requirements in the same district.

Whether those Large House amendments have been formally placed on the October Town Meeting warrant has not been confirmed.

Secretary of State William Galvin's office has certified nine questions for the Nov. 3 ballot, the most since 1994, according to CBS News Boston. Needham voters will also face a Pollard Middle School debt exclusion override on the same ballot. The general election is Tuesday, Nov. 3.