An application that came before the Town of Marlborough Planning Board Monday evening proposed adding a cul-de-sac onto an existing cul-de-sac.

The alteration to Summit Drive in Milton came as part of a proposal to subdivide nearly 7.2 acres of land into eight individual lots. Each would house its own unit of four bedrooms for a total of 32 bedrooms on the 17 Summit Drive property.

The road would be extended approximately 350 feet. The existing cul-de-sac would be transformed into a thruway, ending at a newly constructed cul-de-sac.

Extending the roadway poses a question of road ownership, however — the existing cul-de-sac would need to be abandoned by the Town of Marlborough, according to Highway Superintendent John Alonge. The town would only be responsible for maintaining a width of 20 feet of the roadway connected to the new subdivision. The remaining cul-de-sac area would have to be turned over to the property owners, including the applicant’s neighbors.

“I just have a concern that I don’t believe we can enforce the adjoining property owners to accept that property. There may be some legal issues with that,” Pat Hines, the Planning Board’s attorney said. “We certainly can’t have unowned property.”

Jeff Batistoni, the board’s other attorney, noted neighbors might reject the option because it would require altering the deeds and mortgages to their homes.

The property had been subdivided before in the past and could have included provisions that would allow its reversion. If not, the town would have no option but to abandon the road.

The application itself is a handful of meetings off from implementation. It must appear before several state agencies, including the Department of Environmental Conservation, because it would extend municipal sewer and water pipes to its new units, and to the Department of Parks, Recreation and Historic Preservation, because an Environmental Assessment Form discovered archaeological sensitive areas on the property. To satisfy the later point, Hines projects that the agency will require the applicant to conduct a phase one archaeological survey.

The Planning Board did unanimously declare itself as lead agency for the project.

Also at the May 3 meeting, the Planning Board confirmed that a public hearing on the proposed expansion of Kent Family Farms to include a cider brewery would take place at its following May 17 meeting.

Because of its unique position — renovating an existing and historic house, dealing with the selling of food and drink and expanding a business — the applicant has been in deep discussions with multiple government agencies where authorities overlap. Because of the confusion.

“We don’t have all of the answers as of this evening. We’ve been trying to work through it,” said applicant representative Patricia Brooks. “I’ve had conversations with [Building Inspector Tommy Corocoran], we’re working with [state Department of Agriculture and Markets], we’re trying to make sure that everything is done correctly and, at the same time, we’re trying to enlighten ourselves, enlighten the Building Department and hopefully at the public hearing we’ll also be able to have some final answers for the Planning Board and we can all be educated as things progress in agriculture.”