Adopted zoning bylaw 1026 (signed, with annexes) on the official site CDN.
Zoning & land use — Saint-Mathias-sur-Richelieu, Quebec
What can I build? Do I need a development permit?
Saint-Mathias-sur-Richelieu, Quebec has no zoning & land use bylaw on record as of 2026-06-13.
No adopted bylaw has been confirmed — the documents below are unconfirmed leads or supporting material (checked 2026-06-13).