Demolition of principal residence

Tax Topics
1

I have questions regarding demolition of an existing PR and construction of a new PR:

  1. If I tear down my whole PR and construct a new PR, would this be a deemed disposition at the time of demolition so I need to report it on the tax return? Also my ACB of the new PR would be FMV on the date of demolition plus the renovation costs?

  2. If I move in after the renovation and sell it within one year, would it become a flipped property?

2

Chat GPT answer:

  1. CRA position (supported by case law): demolition = disposition of the building

CRA has long taken the position that when you demolish a house, you’ve disposed of the building component (not the land).

  • CRA technical interpretation (1991):

    • “The taxpayer will be considered to have disposed of the building alone upon demolition.”

    • The land continues to be owned; no disposition of the land occurs.

  • This is explicitly tied to the Supreme Court case:

    • The Queen v. Compagnie Immobilière BCN Limitée

    • Which supports the idea that destruction of a building can be a “disposition” of that property.

:backhand_index_pointing_right: Implication:
If someone demolishes their principal residence and rebuilds, CRA would typically treat it as:

  • Disposition of the old structure

  • Continued ownership of the land

This is not a full principal residence disposition.

2) Tax Court cases: demolition + rebuild + sale → NOT principal residence (but for different reasons)

Several Tax Court / FCA cases involve demolition and rebuilding, but the issue becomes income vs capital (or lack of “ordinarily inhabited”), not a deemed disposition on demolition:

Example:

  • Wall v. Canada

Facts:

  • Taxpayer bought properties, demolished houses, built new ones, and sold quickly.

Outcome:

  • Gains taxed as business income, not sheltered by the principal residence exemption.

Reason:

  • He didn’t genuinely inhabit the properties; activity looked like development/flipping.

Another Tax Court example (unnamed 2022 case summarized in commentary)

  • Property was substantially rebuilt

  • Taxpayer claimed principal residence

  • Court denied it because the home was not “ordinarily inhabited”

:backhand_index_pointing_right: Key takeaway from these cases:

  • Demolition + rebuild often triggers scrutiny

  • But the denial of the principal residence exemption is usually because:

    • It’s a business/adventure in the nature of trade, or

    • The property was not actually inhabited

  • Not because demolition itself = disposition of the whole property

3) Where you do get a deemed disposition of the whole property

To actually get a full deemed disposition (land + building), you typically need:

  • A change in use under ITA 45(1)

    • e.g., principal residence → rental or vice versa

Not demolition alone.

Bottom line

  • :check_mark: Demolition can be a disposition, but generally only of the building

  • :cross_mark: There is no strong Tax Court authority saying:

    “Demolish and rebuild your own home → full disposition of the principal residence”

  • :check_mark: Cases involving demolition + rebuild usually turn on:

    • business income (flipping), or

    • failure to meet “ordinarily inhabited”