Preservation permits, demystified
Which commissions review roof work in Greater Boston, what they look at, and how to keep a restoration on schedule. General guidance, not legal advice.

Districts we work in most
Summaries based on our experience. Always confirm current guidelines with commission staff.
| District | Reviewing body | Typically reviewed | Faster path |
|---|---|---|---|
| Beacon Hill Architectural District | Beacon Hill Architectural Commission | Visible roofs, dormers, skylights, roof decks, chimneys, gutters | In-kind slate and copper repair often staff approved |
| Back Bay Architectural District | Back Bay Architectural Commission | Mansards, cornices, bay roofs, roof decks and rooftop equipment | Like-for-like replacement of damaged materials |
| South End Landmark District | South End Landmark District Commission | Front slopes, mansards, cornices and visible additions | Ordinary maintenance and repair in kind |
| Cambridge conservation districts | Cambridge Historical Commission | Visible material changes in designated districts | Many repairs need only a certificate of non-applicability |
| Brookline local historic districts | Brookline Preservation Commission | Pill Hill, Cottage Farm and other districts: visible changes | In-kind repair with matching materials |
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How we handle approvals

Survey and photograph
We document the existing roof, details and street visibility.
Confirm the review level
We check with commission staff whether work is administrative or needs a hearing.
Prepare the application
Drawings, material specs, photos and physical samples as required.
Staff review or hearing
We attend hearings with you or on your behalf where permitted.
Certificate and building permit
Once approved, we pull the building permit and any street occupancy permits.
Permit questions
For a deeper walkthrough, read our journal article on roof work in Boston historic districts.
Read the permits articleOn visible slopes of contributing buildings, commissions rarely approve it. Rear slopes not visible from a public way sometimes allow more flexibility. We check before recommending materials.
Usually yes if they are visible from a public way. Commissions have guidelines about placement and profile.
Administrative approvals often take 1 to 3 weeks. Hearings typically add 6 to 10 weeks including filing deadlines. Timelines vary by commission.
Planning work in a district?
Book an inspection and ask for a permit review. We will tell you what approvals are likely and how long they take.
Licensed and insured in Massachusetts. No-pressure estimates (sample).