The Marthas’s Vineyard Commission week opened a hearing last week on Chilmark landowner Susan Eddy’s plans to subdivide her Welles Way property for family use.

Ms. Eddy has applied to create two lots of just under 3.5 acres, one for each of her daughters, separated by a 6.59 acre lot with Ms. Eddy’s own home, a second dwelling and a handful of sheds.

As a family subdivision, the plan would not trigger a need for Ms. Eddy and her daughters to provide housing mitigation when they build on their sites. However, should any of the lots pass out of family ownership, the new owners would be responsible for meeting the commission’s housing regulations in effect at that future time.

Commission hearing officer Douglas Sederholm continued Thursday’s hearing to July 11, to allow time for written public comment on the proposed subdivision.

Also Thursday, commissioners approved extensions of two previously-approved developments of regional impact.

The owners of a lot on School street in Oak Bluffs now have two more years to build the replacement for a building demolished with commission approval in 2022, and New England Wind One received a three-year extension on a cable project approved the same year.

Changes in the project schedule accounted for the New England Wind One request, representative Patrick Johnson told the commission.

Representing the School street property owners, Darran Reubens cited financial issues.

“We are very close to getting all the drawings done and applying for a building permit,” Mr. Reubens said.