Are there building permits at 66 Cass St, Boston?

66 Cass St has 1 municipal building permit on record, with the latest activity dated Dec 11, 2025.

What construction activity is near 66 Cass St?

No additional mapped permits were found within 500 m of 66 Cass St in the current public cohort.

What is the declared permit value at 66 Cass St?

The public permit records for 66 Cass St do not currently include a usable total declared construction value.

66 Cass St

Boston, MA

66 Cass St has 1 municipal building permit on file. The latest recorded activity was a insul permit dated Dec 11, 2025.

At this address: 1
Nearby (500 m): 0
Latest activity: Dec 11, 2025

Permit activity timeline

INSUL · 1-2FAMOpenValue not reportedDec 11, 2025
Insulation

More permits on Cass St

12 other addresses on Cass St with municipal permit records in Boston.

All Cass St permits

66 Cass St in the Boston permit market

This address has 1 permit record in PropertyLabs' public history. The city figures below provide context without changing the focus of this exact-address record.

Explore Boston building permits

City address-linked rows: 657,836
City, trailing 90 days: 0
City, trailing 30 days: 0

City coverage counts address-linked rows and does not add overlapping canonical tables. Rolling windows are inclusive, use UTC boundaries, and end Aug 1, 2026.

Permit questions about 66 Cass St

Are there building permits at this address?: 66 Cass St has 1 municipal building permit on record, with the latest activity dated Dec 11, 2025.
What construction activity is nearby?: No additional mapped permits were found within 500 m of 66 Cass St in the current public cohort.
What is the declared permit value?: The public permit records for 66 Cass St do not currently include a usable total declared construction value.

About this address record

PropertyLabs compiled this permit history from municipal public records for Boston, MA. The latest recorded permit activity at 66 Cass St is dated Dec 11, 2025. Municipal records can be corrected or updated after publication.

Sources and data notes

Published by Boston, MA via Boston Open Data.
Municipal sources remain authoritative for permit status and details.
Coverage context: PropertyLabs Coverage Observatory and the permit-data methodology.
Address research workflow: how to check building permits for an address.
City research: Boston Building Permit Activity Through July 19, 2026.
Declared values may be applicant-reported and are not independently verified. See what declared construction value means.
Permit issuance does not confirm that construction has started.
Records may be delayed, revised, or incomplete relative to the municipal source.
Spot an error? Contact us with a correction.

Contractors and applicants associated with these permits

See the contractors, applicants, permit holders, permit numbers, and project documents associated with 66 Cass St in the PropertyLabs platform, along with alerts when new permits are filed at this address.

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