Special town meetings in Edgartown and Oak Bluffs Tuesday night will have a common theme: promoting more affordable housing and grappling with the legal sale of recreational marijuana.

In Edgartown there are nine articles on the warrant. Voters will be asked to authorize the selectmen to move ahead on a long-planned project to build 32 units of affordable housing off Meshacket Road. A temporary yearlong ban on the sale of recreational marijuana and pay raises for town employees are also on the warrant.

The meeting begins at 7 p.m. in the Old Whaling Church. A quorum of 187 is needed to convene the meeting.

In Oak Bluffs, there are eight articles on the warrant. Voters will be asked to approve zoning changes that will ease the rules for creating apartments over commercial buildings downtown, an effort to promote more affordable housing. Zoned areas away from downtown to permit the sale of recreational marijuana and a so-called noisy rooster amendment to the town animal control bylaw are also on the warrant.

The meeting begins at 7 p.m. in the Oak Bluffs School gymnasium. A quorum of 50 is needed to convene the meeting.

In both towns, voters are urged to attend.