Decks & Porches in Hanson, Massachusetts

Deck and porch construction is not eligible for Mass Save weatherization or energy rebates regardless of utility. Hanson is in Eversource electric territory, but that has no bearing on permits or costs for outdoor structure work.

On the permitting side, any deck attached to the house or elevated more than 30 inches above grade requires a building permit filed with the Hanson Building Department. Plymouth County frost depth is approximately 48 inches, so concrete Sonotube footings must extend to that depth or helical piles must be used. Inspectors in Hanson routinely flag ledger-board flashing, guardrail height (36-inch minimum under 780 CMR), and baluster spacing. No wetland or Conservation Commission issues unless the project falls within 100 feet of a wetland or resource area on the specific parcel.

File with the Hanson Building Department before breaking ground on any attached or elevated deck. The state building code (780 CMR) governs footing depth (48 inches for Plymouth County frost line), ledger attachment and flashing, guardrail height (36 inches), and baluster spacing (less than 4 inches). Inspectors make separate site visits for footings and framing before decking is installed. Most residential deck permits in Hanson are approved within two to three weeks.

Deck projects in Hanson run in line with the South Shore regional market. A pressure-treated pine deck replacement typically costs $18,000 to $28,000 installed; composite (Trex or TimberTech) runs $28,000 to $48,000 for the same footprint. A new screened porch addition adds $35,000 to $65,000 depending on size and roofline complexity. Helical piles add $500 to $900 per pile versus Sonotubes when soil conditions make digging difficult.

Hanson sits in central Plymouth County with about 10,619 residents and 4,143 housing units, most of them single-family homes built in the late 1960s through the 1980s. At a median age of 54 years, a good share of the housing stock has original pressure-treated decks that are now well past their useful life.

Lot sizes in Hanson are generous compared to neighboring Whitman or East Bridgewater, which means rear decks and wraparound farmer's porches are practical and common. Many older decks here were built before current ledger-flashing and guardrail code standards, so replacement projects frequently uncover rot at the house connection.