Structural Engineering Review for Load-Bearing Wall Removal in BC Renovations

Removing a load-bearing wall in a BC renovation is not only an interior layout change. It changes how floor, roof, and sometimes lateral loads move through the building.

For contractors, designers, inspectors, and owners in Vancouver, Burnaby, Surrey, Victoria, Kelowna, and Nanaimo, the key issue is how the removed support will be replaced, transferred, and documented.

by Renew Co

Load-Bearing Wall Removal as a Structural Change in BC

The BC Building Code regulates building alterations and repairs, and the 2024 BC Building Code applies to building permit applications submitted after March 8, 2024. The Province also notes that BC Codes do not apply in the City of Vancouver, which uses its own building bylaw.

This matters because permit expectations and review steps vary by authority having jurisdiction. A Surrey or Kelowna renovation may follow the BC Building Code, while a Vancouver project must be coordinated with the Vancouver Building By-law.

Identifying Load-Bearing Walls Before Demolition

A wall should not be assumed non-load-bearing because it is framed with wood studs or located inside the house. Interior walls may support floor joists, roof framing, beams, or walls above.

Typical review items include:

• Joist, rafter, or truss bearing direction

• Walls, posts, or beams above and below

• Basement or crawlspace support lines

• Foundation and footing locations

• Previous renovations or undocumented openings

Exploratory openings may be required where finishes conceal the framing. This is common in older houses in Victoria, New Westminster, and North Vancouver, where renovations may have occurred over several decades.

Engineering Review for Beam, Post, and Load Path Design

A structural engineering review for load-bearing wall removal in BC focuses on replacing the removed wall with a complete load path. The beam is only one part of the system.

Review item	Why it matters
Existing loads	Confirms what the wall supports
Beam design	Replaces the removed bearing line
Posts and connectors	Transfers loads to lower supports
Foundation support	Checks point-load support below
Temporary shoring	Protects the structure during work

Depending on the building and material, the design may reference CSA O86 for wood, CSA S16 for steel, CSA A23.3 for concrete, and CSA S304 for masonry, as applicable to the code being used.

Permit Drawings and Professional Documentation

For many structural renovations, the municipality or regional district may request sealed structural drawings, calculations, and field review commitments. The BC government identifies Letters of Assurance as legal documents that assign responsibility to registered professionals for design and field review.

For Part 3 and some Part 9 buildings, Letters of Assurance may be required under the BC Building Code and Vancouver Building By-law. These documents help confirm who is responsible for the structural design and whether field reviews are included.

At Parsways, the structural review is organized around clear permit drawings, beam and post details, and construction notes that inspectors and contractors can follow on site.

Field Review During Construction

Field review is important because concealed conditions often differ from drawings or assumptions. A wall removal may reveal notched joists, altered framing, unexpected plumbing, or insufficient bearing.

Common field review checkpoints include:

• Temporary support before demolition

• Beam installation and bearing length

• Post alignment and connectors

• Support below new point loads

• Changes from approved drawings

Where site conditions differ, the engineer may need to revise the design before work continues.

Common Risks in BC Renovations

Load-bearing wall removal can affect more than vertical gravity loads. In some BC homes, walls may also contribute to lateral resistance, especially where openings are widened or multiple walls are removed.

Common risks include interrupted load paths, undersized beams, inadequate post support, weak connections, and point loads landing on framing that was not designed for them. These risks increase when demolition starts before engineering review.

Conclusion

Load-bearing wall removal in BC renovations requires more than selecting a beam size. The review must confirm the existing structural system, define the new load path, address permit requirements, and verify that construction matches the approved design.

At Parsways Inc., we provide structural engineering review for load-bearing wall removal in BC, including existing condition review, beam and post design, permit-ready structural drawings, and field review support where required.