Liberty Mutual campus redevelopment plan before Planning Board Tuesday

posted on 9/5/2025

A real estate developer will appear before the Planning Board on Tuesday to seek a conditional use permit and Phase 1 site plan approval for the redevelopment of the Liberty Mutual property on Sixth Street, which will also include a public hearing on the plan.

Manchester-based Brady Sullivan Properties, led by Shane Brady and Arthur Sullivan, seeks to convert the 350,000 square foot office building at 150 Liberty Way into a mixed-use building with residential and commercial uses. Brady Sullivan has a purchase and sales agreement with Liberty Mutual for the site.

If granted by the Planning Board, the conditional use permit would establish a Residential Commercial Mixed-Use Overlay district over the 218-acre property, which is zoned Innovative Technology. The conditional use permit would allow them to develop their master plan for the property.

The project narrative included in the application states that Brady Sullivan has a three-phase development plan. Phase 1 would convert the 350,000-square-foot building at 150 Liberty Way into a mixed-use building with 37,000 square feet of commercial space and 245 residential apartments with a mix of one, two, and three-bedroom apartments, according to the application. The site plan application before the Planning Board is only for this phase.

Phase 2 would entail converting existing office space in the building at 100 Liberty Way into additional residential units. Phase 3 proposes constructing a new, mixed-use building. Each phase requires a site review plan to be reviewed and approved by the Planning Board.

Click here for the complete agenda.

The Planning Board meeting begins at 7 p.m. and will be televised on DoverTV and online at https://dovernh.viebit.com.