Montreal Plexes and Duplexes: Urban Planning Rules and Heritage Norms
Heritage characteristics of Montreal plexes: wrought-iron stairs, setbacks, PIIA architectural reviews, rooftop mezzanines, and foundation underpinning.
Table of Contents
- The Unique Typology of Montreal Plexes
- Municipal By-Laws Protecting Rental Units
- Exterior Stairs and Front Courtyards
- Rooftop Additions and Mezzanine Setbacks
- Basement Underpinning and Rubblestone Foundations
- Architects Act Licensing Boundaries
Historic Masonry and Rubblestone
Montreal century-old plexes require specialized care when digging out basements or replacing load-bearing walls. We provide laser scanning reality capture to accurately document historic geometry.
Can I remove an iconic exterior staircase in Montreal?
In historic boroughs, exterior wrought-iron staircases are protected under PIIA bylaws and removal is generally prohibited.
Automate your drawing compliance audit
Eliminate municipal permit rejections and costly revisions. The KALIA BC Checker engine cross-references your drawing sets (PDF, scans, openBIM IFC, DXF) against Building Code standards (OBC 2024 / NBC), instantly flagging regulatory gaps.
- ✦Instant multi-format audit (PDF, Scans, IFC, DXF)
- ✦Exact statutory code clauses referenced
- ✦Downloadable structured PDF report · Free evaluation
Consult with our building design team and BIM specialists
Managing a complex permit package, zoning variance, or high-precision openBIM coordination? Our building design and coordination practice assists you from feasibility studies to permit drawing packages.
- ✦Feasibility study & code applicability review
- ✦Revit / IFC digital models following ISO 19650
- ✦Proactive municipal and borough liaison