Are there building permits at 21 Dorothy Street, St. Catharines?

21 Dorothy Street has 36 municipal building permits on record, with the latest activity dated May 28, 2026.

What construction activity is near 21 Dorothy Street?

14 mapped permits were found within 500 m of 21 Dorothy Street.

What is the declared permit value at 21 Dorothy Street?

The public permit records for 21 Dorothy Street do not currently include a usable total declared construction value.

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PropertyLabsSt. CatharinesAddress intelligence

21 Dorothy Street

Building permit intelligence · St. Catharines, ON

36 at this address14 nearby within 500 m

21 Dorothy Street has 36 municipal building permits on file. The latest recorded activity was a plumbing only permit dated May 28, 2026. PropertyLabs also identified 14 mapped permits within 500 m of this address.

At this address: 36
Nearby (500 m): 14
Latest activity: May 28, 2026

Permit activity timeline

Plumbing OnlyUnder InspectionValue not reportedMay 28, 2026
Upgrade existing 1/2' incoming water service to 1'
Plumbing OnlyUnder InspectionValue not reportedMay 28, 2026
Upgrade existing 1/2' incoming water service to 1'
Plumbing OnlyProject CompleteValue not reportedMay 28, 2026
Upgrade existing 1/2' incoming water service to 1'
Plumbing OnlyProject CompleteValue not reportedMay 28, 2026
Upgrade existing 1/2' incoming water service to 1'
Plumbing OnlyUnder InspectionValue not reportedMay 28, 2026
Upgrade existing 1/2' incoming water service to 1'
Plumbing OnlyProject CompleteValue not reported

Development activity near 21 Dorothy Street

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

Browse recent permits near this address

More permits on Dorothy St

2 other addresses on Dorothy St with municipal permit records in St. Catharines.

All Dorothy St permits

21 Dorothy Street in the St. Catharines permit market

This address has 36 permit records in PropertyLabs' public history. The city figures below provide context without changing the focus of this exact-address record.

Explore St. Catharines building permits

City address-linked rows: 20,261
City, trailing 90 days: 310
City, trailing 30 days: 372

City coverage counts address-linked rows and does not add overlapping canonical tables. Rolling windows are inclusive, use UTC boundaries, and end Jul 31, 2026.

Permit questions about 21 Dorothy Street

Are there building permits at this address?: 21 Dorothy Street has 36 municipal building permits on record, with the latest activity dated May 28, 2026.
What construction activity is nearby?: 14 mapped permits were found within 500 m of 21 Dorothy Street.
What is the declared permit value?: The public permit records for 21 Dorothy Street do not currently include a usable total declared construction value.

About this address record

PropertyLabs compiled this permit history from municipal public records for St. Catharines, ON. The latest recorded permit activity at 21 Dorothy Street is dated May 28, 2026. Municipal records can be corrected or updated after publication.

Sources and data notes

Published by St. Catharines, ON via Niagara 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: St. Catharines 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 21 Dorothy Street in the PropertyLabs platform, along with alerts when new permits are filed at this address.

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