Decks & Porches in Randolph, Massachusetts

Decks and porches are not eligible for Mass Save rebates. Randolph is in Eversource territory for electric service, but energy incentives don't apply to outdoor structures.

For deck permitting, the Randolph Building Department and, for properties near water, the Randolph Conservation Commission are the relevant authorities. Great Pond in the northern section of town, Hollis Reservoir, Furnace Brook, and mapped inland wetlands throughout Randolph trigger 100-foot buffer zones under the Wetlands Protection Act. Properties near these resources require a Notice of Intent to the Randolph Conservation Commission before the building permit is issued. Standard frost-line footing depth of 48 inches is required in Norfolk County.

Building permits for decks in Randolph are filed with the Randolph Building Department under 780 CMR. Standard checkpoints include footing depth (48 inches), ledger-board attachment and flashing, 36-inch guardrails, and baluster spacing under 4 inches. On Randolph's 1960s and 1970s housing stock, ledger conditions and non-code railings are the most common findings at inspection. The building department handles residential deck permits routinely with turnaround of one to two weeks. Randolph does not have a broad local historic district overlay.

Deck costs in Randolph sit in the lower-to-mid range for Norfolk County, slightly below the Braintree and Quincy market. Pressure-treated pine decks run $16 to $25 per square foot installed; composite or PVC systems run $27 to $42 per square foot. A full deck rebuild on a Randolph colonial or raised ranch typically runs $19,000 to $36,000 for 300 to 400 square feet. Three-season porch additions start around $27,000. Braintree and Canton contractors are active in this market.

Randolph is a Norfolk County town of about 34,691 people with roughly 12,817 housing units and a median home age of 61 years. The housing stock is predominantly 1960s and 1970s colonials, raised ranches, and split-levels on moderate suburban lots. Randolph is one of the South Shore's more affordable inner suburbs, bordering Braintree, Avon, Canton, Holbrook, and Milton.

The town has a mix of established neighborhoods with aging decks that are hitting their 40-to-50-year service life, and some newer infill housing. Great Pond and several other ponds and wetland areas in the town create Conservation Commission jurisdiction over deck projects near those resources.