Are there building permits at 45 Thornton St, Boston?

45 Thornton St has 11 municipal building permits on record, with the latest activity dated Jul 21, 2026.

What construction activity is near 45 Thornton St?

2 mapped permits were found within 500 m of 45 Thornton St.

What is the declared permit value at 45 Thornton St?

Permits recorded at 45 Thornton St represent $10K–$50K in total declared construction value.

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PropertyLabsBostonAddress intelligence

45 Thornton St

Building permit intelligence · Boston, MA

11 at this address2 nearby within 500 m

45 Thornton St has 11 municipal building permits on file in Ward 9. The latest recorded activity was a intext permit dated Jul 21, 2026. Permits at this address represent $10K–$50K in total declared construction value. PropertyLabs also identified 2 mapped permits within 500 m of this address.

At this address: 11
Nearby (500 m): 2
Latest activity: Jul 21, 2026
Total permitted value: $10K–$50K

Permit activity timeline

INTEXT · 1-3FAMOpenValue not reportedJul 21, 2026
Interior/Exterior Work
INTREN · 1-3FAMOpenValue not reportedOct 21, 2025
Renovations - Interior NSC
PLUMBING · 1-2FAMClosedValue not reportedOct 16, 2025
Plumbing
INSUL · 1-3FAMClosedValue not reportedSep 18, 2024
Insulation
Electrical Permit · ELECTRICALClosed$10K–$50KJul 26, 2024
Rewiring 3rd Floor including new sub panel.
EXTDEM · 1-2FAMOpenValue not reportedJul 26, 2024
Demolition - Exterior

Development activity near 45 Thornton St

2 mapped permits within 500 m, shown on the intelligence map above.

Browse recent permits near this address

More permits on Thornton St

9 other addresses on Thornton St with municipal permit records in Boston.

All Thornton St permits

45 Thornton St in the Boston permit market

This address has 11 permit records in PropertyLabs' public history and is located in Ward 9. 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 45 Thornton St

Are there building permits at this address?: 45 Thornton St has 11 municipal building permits on record, with the latest activity dated Jul 21, 2026.
What construction activity is nearby?: 2 mapped permits were found within 500 m of 45 Thornton St.
What is the declared permit value?: Permits recorded at 45 Thornton St represent $10K–$50K in 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 45 Thornton St is dated Jul 21, 2026. 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 45 Thornton St in the PropertyLabs platform, along with alerts when new permits are filed at this address.

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