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Cambridge, MA Short-Term Rentals: Host Presence Rule (2026)

Some Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified September 2026

Key Facts

Trigger
Operator away more than 7 consecutive days
Effect
Whole-unit rental only, one party at a time
Applies to
Operator-occupied short-term rentals
Enforcing agency
Inspectional Services Department
Related cap
Up to 3 bedrooms when host present

Summary

Cambridge lets residents run operator-occupied short-term rentals only while the operator actually lives there. If the host leaves the unit for more than seven straight days, the rental can no longer be split among separate short-term renters by bedroom.

An operator-occupied short-term rental during which the operator is away from the dwelling unit for more than seven (7) consecutive days may be rented only as a whole unit to one party of short-term renters at any one time and not rented as separate bedrooms to separate parties.

Full Breakdown

60 defines an operator-occupied short-term rental as one that is the operator's primary residence, and it builds a presence requirement directly into that status. 64, item 5) and a host who is effectively running an unhosted whole-unit rental while away, which the Ordinance treats differently for liability and neighborhood-impact purposes. 64, item 8, which likewise limits rentals of a non-primary-residence unit to one whole-unit party at a time, never split by bedroom to separate parties. 67, enforces these operating conditions as part of the registration the operator agreed to abide by. 67, item 1, give inspectors the baseline to check compliance with the presence-based bedroom-splitting limits during any complaint-driven review.

Violations & Fines

Renting bedrooms separately to different parties while the operator is away more than seven consecutive days breaches Section 4.64, item 9. Because the requirement is tied to the operator's certificate of registration under Section 4.67, the Inspectional Services Department can treat a violation as grounds to deny renewal or revoke the certificate; renting without a valid certificate is a separate zoning violation under Section 4.64, item 2.

Frequently Asked Questions

Can I rent out my Cambridge spare bedrooms while I'm on vacation?
Only as a whole unit to a single party. Once you're away from an operator-occupied short-term rental for more than seven consecutive days, Section 4.64, item 9 bars renting the bedrooms separately to different renters until you resume living there.
Who checks whether a host is actually present?
The Inspectional Services Department administers short-term rental certificates of registration under Section 4.67 and can review compliance with the presence-based rules as part of that registration and renewal process.
Does the same rule apply to owner-adjacent rentals?
Owner-adjacent rentals, where the operator owns the whole small building but doesn't live in the specific unit, are already restricted to one whole-unit party at a time under Section 4.64, item 8, regardless of the operator's presence elsewhere in the building.

Sources & Official References

Other rules in Cambridge

All Cambridge rules

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