Code officer lays out 2021 building-code update, town workshop set for March 19

South Berwick — The town’s code enforcement officer briefed the council on a state-led switch to the 2021 model building codes, explained which new code books the town will adopt and scheduled a public workshop to explain the changes to contractors and residents.

Jenny told the council she received a notice that Maine’s state building official (Greg Gilbert) had initiated an update to the state’s adopted codes; South Berwick will transition to the 2021 code set beginning April 7, 2025 for permits issued after that date. She said the change includes adoption of multiple supporting codes (for green construction and existing buildings) and will bring higher energy and insulation standards, sprinkler requirements for taller buildings, and new mechanical and ventilation rules.

Jenny summarized practical effects: increased permit documentation, more inspections per project (she cited examples rising from roughly eight inspections for a house to as many as 14–16 in some cases), blower-door and mechanical performance reporting, and higher R-values for walls and ceilings compared with the 2015 code. She also noted the town will host a deep-dive presentation for contractors and the public at Town Hall on March 19 at 10 a.m. and that code-office books will be available for in-office review.

She ran a local cost estimate for a typical 1,600-square-foot house and found the incremental building-cost delta between 2015 and 2021 codes varied across contractors, roughly $0 up to about $23,000 in her sample calls — an estimate she described as preliminary and dependent on contractor practices and material choices.

Why it matters: The updated code affects construction costs, permit timelines and inspection workload. Contractors, homeowners planning additions, and anyone applying for permits should prepare for new documentation and potential incremental costs.

What’s next: The code office will accept questions and the March 19 workshop is intended to help local builders and residents understand new requirements. Jenny said staff will mark building-permit paperwork to show which code applies for applications bridging the transition date.