Harwich homeowners within flood zones could see their insurance premiums drop by 20% under a new set of coastal resiliency regulations currently under development. During a special work session on March 13, the Conservation Commission reviewed a draft framework produced through a Southeast New England Program (SNEP) grant, aimed at modernizing how the town manages development in high-risk areas. Shannon Hulst of the Cape Cod Cooperative Extension explained that while Harwich residents already receive a 15% discount through the Community Rating System (CRS), adopting these higher performance standards could boost those savings. Hulst noted that Harwich participates in the Community Rating System (CRS). Everyone in town gets a 15% discount on flood insurance. This will go toward increasing that discount to 20%.

Conservation Agent Amy Usowski emphasized the scale of the potential impact, noting that Harwich has between 1,700 and 1,800 structures in the flood zone. The proposed regulations would introduce the term Coastal Resilience Zone (CRZ), effectively replacing the current "land subject to coastal storm flowage" designation. This zone would include specific prohibitions in high-hazard "V-zones," such as bans on new construction, septic systems, and pools. Heather McIroy of the Cape Cod Commission clarified that unlike a town bylaw, the coastal resiliency regulations are something you are able to adopt as a conservation commission by vote of your commission, though associated bylaw changes would still require a two-thirds vote at Town Meeting.

A central point of discussion involved how the town calculates structural improvements. The draft suggests using assessed value rather than market value to determine if a project meets the 50% "substantial improvement" threshold that triggers stricter building requirements. Hulst argued this would address income-based inequities, explaining that folks with enough money get an appraisal that gives them more leniency. Agent Usowski supported the change to ensure consistency with the building department, stating, We don't want the commission to have a different standard.

The session also touched on scientific modeling, prompting a skeptical inquiry from member Wayne Coulson. Is this basically all about the fear of sea level rise? Do we have the science to prove that? I haven't seen it, Coulson asked. In response, Chair John Ketchum and the guest presenters detailed state-commissioned models and historical tide gauge data. Ketchum cited changing ocean currents and glacial melt as established factors, noting, In the scientific community, there's not much doubt that this stuff is happening. He cautioned that the town must be prepared for public pushback, observing that there is a lot of skepticism about sea level rise. There can be a lot of 'flack' in social media. Do you have plans to counter that? It's a PR thing.

Vice Chair Mark Coleman raised concerns about the technical specificity of the rules and the potential for regulatory overlap with the state. The draft refers to permeable and unpermeable pavement. Maybe there should be a specification to generate a baseline of what qualifies as permeable, Coleman suggested. He added, I can't help but wonder if this is a little more intense than it needs to be. If the state has a baseline, it means everyone is on the same playing field. Meanwhile, member Susan Cyr looked toward the regional implications, asking, is the goal for all the towns to adopt the same regulations as we work through these discussions? Carol Ridley of the Pleasant Bay Alliance confirmed that Harwich is working in tandem with Chatham and Orleans to ensure a contemporaneous approach that benefits consultants and developers working across town lines.

The Commission plans to host public information sessions this summer to gather community feedback. Agent Usowski recommended starting the formal review with definitions and the preamble to set the stage for the adoption process. The regulatory changes are targeted for completion by the end of 2026, with broader bylaw updates slated for the 2027 Annual Town Meeting.