Edgartown will move forward with its largest major affordable housing development in more than a decade, after the Martha’s Vineyard Commission voted unanimously to approve the Meshacket Commons project that has been years in the making.

The project, which will include 36 rental apartments and four homeownership units on a triangular, town-owned 8.5-acre plot at 38 Meshacket Road, is being developed by a partnership of the Island Housing Trust and Affirmative Investments, a Boston-based affordable housing developer.

On Thursday, commissioners ultimately determined that the dire need for affordable housing on Island overrode potential project impacts on the environment and traffic in the area. The project is located near the old landfill site, across from Meshacket Road.

The project has gone through a long public hearing process that began in September. A decision on the development was delayed last week when a commission meeting extended late into the night.

Deliberation and discussion was brief on Thursday, as commissioners marched through the project’s benefits and detriments with little controversy and few concerns.

Conditions for the approval of the project include working with VTA to provide bus service, providing free Wi-Fi to residents and providing nitrogen mitigation by either ensuring other town land would not be developed, or providing two new sewer hookups to other homes.

Although the project will be connected to the town sewer, applicants still had to provide nitrogen mitigation because the development is in the Edgartown Great Pond watershed.

Rental units on the property will be available to those earning 30 to 110 per cent of Dukes County’s area median income, while ownership units will be available to those making 90 to 120 per cent of the area median income.

Edgartown has contributed about $800,000 in Community Preservation Act funding to develop the parcel.

The decision was unanimous among voting members at the meeting, with Fred Hancock, Ernie Thomas, Clarence (Trip) Barnes, 3rd, Kate Putnam, Jay Grossman, Joan Malkin, Doug Sederholm, Jeff Agnoli, Ben Robinson, Peter Wharton, Michael Kim and Kathy Newman all voting in favor of the project. Linda Sibley, Christina Brown, Jim Vercruysse and Greg Martino all recused themselves from voting.

“It’s a real pleasure when a project comes in that has been thought out quite thoroughly,” said chairman Joan Malkin after the decision was made. “This project was a pleasure to hear, and I want to thank the applicants...good luck and build well.”

In other business, the Commission voted to approve a proposal from the West Chop Club to construct a two-story building to house their tennis pro shop, workout equipment and bathrooms.

The new facility will consolidate and update amenities that already exist at the club, applicants said.

Commissioners approved the project, noting that the continued functioning of the club, which is on the National Register of Historic Places, provides long-term cultural and economic benefits. “Our Island is an amusement-based Island, if you will,” said Linda Sibley. “Our economy is based on this kind of recreation.”

The vote to approve the project was unanimous.

The MVC also opened a public hearing on a new, 15,000-square-foot hanger at the Martha’s Vineyard Airport.

The lot for the proposed hangar was slated for a future hangar development as part of the 2016 airport master plan, said Peter Rogers, who represented the applicants.

“It’s just a garage for planes, basically,” he said.

Airport manager Geoffrey Freeman said the new hangar would improve safety by reducing outdoor plane tie-downs but would be unlikely to increase airport traffic.

The commission continued the public hearing to a future meeting, pending a complete version of the project’s stormwater management plan. Some commissioners urged Mr. Rogers to consider installing solar panels on the hanger, which both he and Mr. Freeman said they were exploring.

Meanwhile, the commission closed a public hearing on a proposal to construct a two-and-a-half story, 4,000-square-foot-inn on Narragansett avenue in Oak Bluffs. The project, named the Three Sisters Inn, drew pushback from neighbors who expressed concerns about a lack of parking in the area, as well as the inn’s size.

At Thursday’s meeting, DRI coordinator Alex Elvin presented new information about the project to the commission, saying the applicants had committed to pay into the Oak Bluffs parking mitigation fund in lieu of providing new parking spaces (a fee of $400 a year). He said the commission had also been able to find several other three-story buildings within a 300-foot radius of the plot.

A date has not been set for deliberation on the project.