Deck Building Cost in Boston (2026)

Boston uses a fee structure of $20 for the primary application plus $10 for every $1,000 of estimated construction cost. For a $15,000 deck, the permit fee would be approximately $170.

Massachusetts building code (780 CMR) requires footings to be at least 48 inches deep to reach below the frost line. This prevents 'heaving' during Boston's freeze-thaw cycles and typically adds $1,500–$3,000 to the project cost compared to warmer climates.

Yes. Projects in historic districts require approval from the Boston Landmarks Commission. This often mandates premium materials like Ipe or specific hardwoods instead of pressure-treated wood, increasing material costs by 50% or more, plus a $150 zoning variance fee if setbacks are tight.

Roof decks are significantly more expensive due to structural reinforcement needs and crane logistics. While a ground deck averages $35–$75 per sq ft, a Boston roof deck typically ranges from $25,000 to $75,000 total depending on the building's load-bearing capacity.