A firm that planned to build a 174-unit affordable housing development in East Wareham has written a new project eligibility letter, now proposing 240 units.

Developers from Dakota Partners, a firm based in Waltham, came to Wareham in June to discuss their project, a development at 3102 Cranberry Highway near the intersection of the highway and Red Brook Road. At that time, they said the development would have 60 percent of the units rented at affordable rates, meaning the cost of rent must not exceed state guidelines determined based on income.

However, the letter the developers sent to the Department of Housing and Community Development was a different story, Selectmen Chair Peter Teitelbaum said at the Selectmen meeting Tuesday.

Teitelbaum said he’s learned the project engineer is discussing infrastructure for 120 one-bedroom units and another 120 two-bedroom units and the development is planning to increase affordable units to 80 percent.

“I was appalled to see that the state believes that 80 percent of these units will be affordable when they came in here in the summer and told us they were looking for 60 percent affordable,” Teitelbaum said.

Teitelbaum said the Selectmen will invite the developers back at a meeting in the near future to discuss their plans.

“There seems to be a fair amount of bait-and-switch between what we were told...and what was actually presented,” Teitelbaum said. "We're not country bumpkins here."

Read more about the developers’ presentation in June and about the resulting public outcry.