The Planning and Zoning Board voted 6 to 2 at its Oct. 3 meeting to approve with conditions a proposal for 342 apartments at 553 West Ave.

One condition is an increase in the required number of affordable units from 30% to 40% of the project. Another condition is that it meets state and federal regulations for flooding. The project was submitted under the state’s affordable housing regulation 8-30g, which overrides local zoning regulations.

The application was filed by Grillo Services LLC.

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