Are there building permits at 450 Walnut Av, Boston?

450 Walnut Av has 78 municipal building permits on record, with the latest activity dated Jul 24, 2026.

What construction activity is near 450 Walnut Av?

5 mapped permits were found within 2 km of 450 Walnut Av.

What is the declared permit value at 450 Walnut Av?

Permits recorded at 450 Walnut Av represent $25MM+ in total declared construction value.

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PropertyLabsBostonAddress intelligence

450 Walnut Av

Building permit intelligence · Boston, MA

78 at this address5 nearby within 2 km

450 Walnut Av has 78 municipal building permits on file in Ward 12. The latest recorded activity was a erect permit dated Jul 24, 2026. Permits at this address represent $25MM+ in total declared construction value. PropertyLabs also identified 5 mapped permits within 2 km of this address.

At this address: 78
Nearby (2 km): 5
Latest activity: Jul 24, 2026
Total permitted value: $25MM+

Permit activity timeline

ERECT · CommOpenValue not reportedJul 24, 2026
Erect
LVOLT · CommOpenValue not reportedJun 26, 2026
Low Voltage
FA · CommOpenValue not reportedJun 26, 2026
Fire Alarm
LVOLT · CommOpenValue not reportedJun 26, 2026
Low Voltage
FA · CommOpenValue not reportedJun 26, 2026
Fire Alarm
ELECTRICAL · OtherOpenValue not reportedJun 17, 2026
Electrical

Development activity near 450 Walnut Av

5 mapped permits within 2 km, shown on the intelligence map above.

Browse recent permits near this address

More permits on Walnut Av

4 other addresses on Walnut Av with municipal permit records in Boston.

All Walnut Av permits

450 Walnut Av in the Boston permit market

This address has 78 permit records in PropertyLabs' public history and is located in Ward 12. 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 450 Walnut Av

Are there building permits at this address?: 450 Walnut Av has 78 municipal building permits on record, with the latest activity dated Jul 24, 2026.
What construction activity is nearby?: 5 mapped permits were found within 2 km of 450 Walnut Av.
What is the declared permit value?: Permits recorded at 450 Walnut Av represent $25MM+ 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 450 Walnut Av is dated Jul 24, 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 450 Walnut Av in the PropertyLabs platform, along with alerts when new permits are filed at this address.

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