Cambridge vs Somerville
How do scaffold & sidewalk shed rules compare between Cambridge, MA and Somerville, MA?
Cambridge and Somerville have similar restriction levels.
Cambridge, MA
Middlesex County
Cambridge requires permits for scaffolding that occupies sidewalks or public ways, enforced by DPW and the Inspectional Services Department per Massachusetts 454 CMR 17 safety standards.
View full Cambridge rules →Somerville, MA
Middlesex County
Somerville follows Massachusetts 454 CMR 17 for scaffold construction, fall protection, and inspection. Public-way staging requires an ISD permit plus insurance.
View full Somerville rules →Key Facts Comparison
| Fact | Cambridge | Somerville |
|---|---|---|
| Street permit issuer | DPW Street Occupancy | - |
| Safety standard | 454 CMR 17 | - |
| Canopy clearance | 8 feet minimum | - |
| Guardrails required | Over 6 feet high | - |
| Inspection | Daily by competent person | - |
| State rule | - | 454 CMR 17 scaffolding standard |
| Fall protection | - | Required above 6 feet |
| Public way staging | - | ISD street occupancy permit |
| Insurance | - | Liability with City as additional insured |
| Inspections | - | Required before each shift of use |
Highlighted rows indicate differences between cities.
Cambridge FAQ
Do I need a permit for scaffolding on a Cambridge sidewalk?
Yes, a Street Occupancy Permit from DPW is required, along with any applicable building permit from Inspectional Services.
Who regulates scaffold safety?
Massachusetts 454 CMR 17 sets statewide scaffold safety standards enforced locally by Cambridge ISD.
Somerville FAQ
Do I need a permit for a small scaffold on my own driveway?
A scaffold fully on private property generally does not need a separate ISD permit, but the underlying work (roofing, siding, chimney) still needs a building permit and must meet 454 CMR 17 safety standards.
Can I block a sidewalk with staging?
Only with a sidewalk occupancy permit from ISD. You must provide a covered walkway or an approved detour, signage, and lighting for pedestrians.
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