What the City needs, and what older homes can hide
Hamilton has some of the most interesting housing stock in the region, from century homes in the lower city to post-war bungalows on the Mountain. Opening up a main floor is one of the most popular renovations we design here. If the wall you want to remove is load-bearing, the City of Hamilton requires a building permit first. This guide covers what the City needs, what older Hamilton homes tend to hide, how long it takes and what it typically costs.
Do I Need a Permit in Hamilton?
Yes. Removing or shortening a load-bearing wall is structural work under the Ontario Building Code, so it needs a building permit before any demolition starts. Replacing cabinets, flooring or fixtures in the same location generally does not. If you are not sure whether your wall is load-bearing, start with How do I know if my wall is load-bearing?, then have an engineer confirm it on site.
How to Apply
The City of Hamilton accepts residential building permit applications through its online building permit service. A complete application for a wall removal normally includes:
- Existing and proposed floor plans for the affected level
- Framing information for the floors above and below, showing how loads travel down to the foundation
- Beam, post and connection details stamped by a Professional Engineer
- A temporary shoring plan for supporting the structure while the wall is removed
- Any new footings required under the posts
The City publishes its building permit fee schedule on hamilton.ca. Permit fees are separate from engineering and construction costs.
Temporary shoring carries the floor and roof loads while the wall is taken out and the new beam is installed.
What Older Hamilton Homes Can Hide
Many Hamilton homes were built long before current codes, and opening a wall can reveal conditions that change the design. The ones we see most often:
- Undersized or notched framing above the wall, which may need reinforcement once the new beam is in place.
- Stone or block foundations that need to be checked, or given a new footing, where the new posts land.
- Plaster and lath walls, which are heavier and messier to remove than drywall and affect the contractor's price.
- Old wiring, plumbing stacks or ductwork running through the wall that must be rerouted.
A site visit before design is the best way to avoid surprises. It lets the engineer size the beam for the house you actually have, not an assumed one.
How Long Does It Take?
The Ontario Building Code sets a target of 10 business days for a municipality to decide on a complete permit application for a house. From first call to permit in hand, a typical project looks like this:
- Site visit and measurements: typically within a week of booking
- Engineering design and drawings: about one to two weeks
- City review: about two to four weeks, longer if revisions are requested
What Does It Cost?
A typical engineering and permit package for a single load-bearing wall costs about $2,950 before HST, covering the site visit and engineering design, architectural drawings, and permit application handling. Contractors typically charge about $7,000 for a standard beam and about $10,000 for a steel beam set flush in the ceiling, including the beam and columns, plus about $3,500 for each new footing. See our 2026 wall removal cost guide for the full breakdown.
A dropped beam sits below the ceiling and is usually the most economical choice.
After the Permit Is Issued
- Book inspections with the City as work progresses. Leave the beam and posts exposed until the framing inspection passes.
- Keep the stamped drawings on site for your contractor and the inspector.
Planning More Than a Wall Removal?
This site focuses on wall removal permits and pricing. For additions, secondary units, structural inspections and full renovation design in Hamilton, visit our main site: Kingswood Engineers in Hamilton.
Engineers Who Know Hamilton Homes
Kingswood Engineers has completed more than 660 residential projects across Hamilton, Burlington, Oakville and Mississauga. We prepare the drawings and engineering the City expects, and we can submit and manage the application for you.
Use our instant quote calculator for an estimate in under a minute, or call 289-206-7556.
Permit requirements can change. Confirm current requirements with the City of Hamilton before you apply.