Deck and roof deck work in Boston: repairs, leaks, railings, stairs and rebuilds. Boston splits roof decks between ISD short-form and long-form permits.
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Boston's Inspectional Services Department issues a Short-Form permit for minor work that doesn't change a building's structure or use, like opening up a wall, and a Long-Form permit for work that does. Both are filed through the ISD online portal, and starting before the permit is issued can mean double the permit cost or a code violation.
[1][2]Repairing a roof deck with no structural change takes a Short-Form permit plus the original permit and engineer-stamped plans. A brand new roof deck, a bigger one, or a repair without the original plans takes a Long-Form permit.
[1]Inside Boston's historic districts, exterior work needs commission approval before it starts. Back Bay reviews all proposed exterior work, Beacon Hill reviews exterior work visible from a public way, and the South End reviews front facades, visible rooftops and walls facing a public way. The commissions say not to buy materials until you're approved.
[1][2][3][4]A dumpster or work area on a Boston street or sidewalk needs a Street Occupancy Permit from Public Works, applied for at least seven business days ahead. In residential areas, signs go up at least three days before the job.
[1][2]One statewide building code. Massachusetts uses a single building code for every town: 780 CMR, now in its tenth edition. Your local building department enforces it and issues the permits. source
Dig Safe before digging. State law requires notice to Dig Safe at least 72 hours before digging, not counting weekends and legal holidays. That includes holes for deck footings. Call 811. source
Boston has its own page just for roof decks. A repair with no structural change is a Short-Form, but you need the original permit and the engineer-stamped plans. Lost those plans? Then even a repair goes Long-Form, same as a new or larger deck. On a three-family or bigger building, a contractor has to pull it.
In the historic districts, the deck's visibility is the question. The South End reviews rooftop work seen from a public way, and in March 2025 the Beacon Hill commission turned down an upper roof deck without prejudice and asked for a revised mock-up that was harder to see. We plan sight lines before we price mahogany or composite.
Yes, if the repair has no structural change and you still have the original permit and engineer-stamped plans. Without those plans, ISD puts even a repair on the Long-Form track.
If it's visible from a public way, yes. The South End commission reviews rooftop work seen from the street, so we look at sight lines before drawing anything.
Our work around Boston and the North Shore.
Local rules change. We link the official pages so you can check the current version, and we confirm what your job needs when we come look.
Send a request or give us a ring. We'll come to Boston, look at the job and give you a written price. Free.
