Construction Brief
ProjectsBP2025-23996
Top opportunity · Calgary

Interior alterations - CNRL - 24th Floor - 400 4th Ave Tenant Improvement

400 4 AV SW · DOWNTOWN COMMERCIAL CORE

Recommended next action · Interpretation

Validate the construction team and ask whether estimating or supplier selection is active.

A building-permit application is active; estimating or supplier selection may be underway.

Verify the latest status with the official source or project team before acting.

Location context

Project location

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Locating 400 4 AV SW…

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Construction Brief interpretation

Why this matters

OpportunityTop opportunity
Estimated project typeCommercial
Estimated current stageBuilding permit application
Likely commercial windowFit-out estimatingNow to approximately 2 months
Commercial-window confidence Medium confidence
Record-link confidenceHighAddress-only association; verify the related records

The source states interior or fit-out scope; supplier selection may be active during permit review.

Evidence behind the ranking

  • Disclosed value above CA$2 million
  • Commercial project with broad trade relevance
  • Project is still early enough for preconstruction follow-up
  • New or changed public record this week
  • Applicant identified in a public record

Relevant trades

Drywall and interiors

The source describes an interior alteration or renovation.

Medium confidence · Now to approximately 2 months
Electrical

Interior alterations commonly require electrical scope.

Low confidence · Now to approximately 2 months
HVAC and mechanical

Interior alterations may require mechanical changes.

Low confidence · Now to approximately 2 months
Building materials

The project type indicates broad construction-material demand.

Medium confidence · Now to approximately 2 months
Concrete

The public description indicates new-build, addition, or structural scope.

Medium confidence · Now to approximately 2 months
Plumbing

New-build or multi-unit scope commonly includes plumbing work.

Low confidence · Now to approximately 2 months
Append-only history

Project timeline

  1. InterpretationHigh confidence

    Construction Brief assessment

    Project assessed as worth watching at occupancy or completion

    First detected Aug 1, 2026 Underlying source ↗
  2. Verified fact

    Permit completed

    Permit completed: Interior alterations - CNRL - 24th Floor - 400 4th Ave Tenant Improvement

    First detected Jul 29, 2026 Official record ↗
  3. Verified fact

    Building permit issued

    Building permit issued: Interior alterations

    First detected Jul 29, 2026 Official record ↗
  4. Verified fact

    Permit completed

    Permit completed: Interior Alterations

    First detected Jul 29, 2026 Official record ↗
  5. Verified fact

    Permit completed

    Permit completed: Interior alteration

    First detected Jul 29, 2026 Official record ↗
  6. Verified fact

    Permit completed

    Permit completed: Office Interior Alteration

    First detected Jul 29, 2026 Official record ↗
  7. Verified fact

    Permit completed

    Permit completed: Interior Alterations

    First detected Jul 29, 2026 Official record ↗
  8. Verified fact

    Permit completed

    Permit completed: Interior alteration

    First detected Jul 29, 2026 Official record ↗
  9. Verified fact

    Permit completed

    Permit completed: Interior Alterations

    First detected Jul 29, 2026 Official record ↗
  10. Verified fact

    Permit completed

    Permit completed: Interior alterations

    First detected Jul 29, 2026 Official record ↗
  11. Verified fact

    Permit completed

    Permit completed: Interior Alterations

    First detected Jul 29, 2026 Official record ↗
  12. Verified fact

    Building permit issued

    Building permit issued: Interior Alterations

    First detected Jul 29, 2026 Official record ↗
  13. Verified fact

    Permit completed

    Permit completed: Interior Demolition

    First detected Jul 29, 2026 Official record ↗
  14. Verified fact

    Building permit application

    Building permit application: Interior alterations

    First detected Jul 29, 2026 Official record ↗
  15. Verified fact

    Building permit issued

    Building permit issued: Interior Alteration - New Office Suite

    First detected Jul 29, 2026 Official record ↗
  16. Verified fact

    Building permit application

    Building permit application: Interior Alterations

    First detected Jul 29, 2026 Official record ↗
  17. Verified fact

    Building permit issued

    Building permit issued: Interior Alterations

    First detected Jul 29, 2026 Official record ↗
  18. Verified fact

    Building permit issued

    Building permit issued: Interior Alterations

    First detected Jul 29, 2026 Official record ↗
  19. Verified fact

    Building permit application

    Building permit application: Interior Alterations

    First detected Jul 29, 2026 Official record ↗
  20. Verified fact

    Building permit application

    Building permit application: Commercial / Multi Family Project at #2100 400 4 AV SW

    First detected Jul 29, 2026 Official record ↗
  21. Verified fact

    Building permit application

    Building permit application: Commercial / Multi Family Project at #1700 400 4 AV SW

    First detected Jul 29, 2026 Official record ↗
  22. Verified fact

    Building permit application

    Building permit application: Interior Alterations

    First detected Jul 29, 2026 Official record ↗
  23. Verified fact

    Building permit application

    Building permit application: Interior Alteration - New Office Suite

    First detected Jul 29, 2026 Official record ↗
  24. Verified fact

    Building permit issued

    Building permit issued: CNRL Alteration-South Tower Floors 8, 9 & 10

    First detected Jul 29, 2026 Official record ↗
  25. Verified fact

    Building permit application

    Building permit application: CNRL Alteration-South Tower Floors 8, 9 & 10

    First detected Jul 29, 2026 Official record ↗
  26. Verified fact

    Building permit issued

    Building permit issued: Interior Alterations - CNRL Office

    First detected Jul 29, 2026 Official record ↗
  27. Verified fact

    Building permit application

    Building permit application: Interior Alterations - CNRL Office

    First detected Jul 29, 2026 Official record ↗
  28. Verified fact

    Building permit issued

    Building permit issued: Interior alterations - CNRL - 24th Floor - 400 4th Ave Tenant Improvement

    First detected Jul 29, 2026 Official record ↗
  29. Verified fact

    Building permit application

    Building permit application: Interior alterations - CNRL - 24th Floor - 400 4th Ave Tenant Improvement

    First detected Jul 29, 2026 Official record ↗
Official evidence

Related public records

SourceRecordRecord dateRetrievedEvidence
City of CalgaryCalgary Building Permitsbuilding_permit · record_updatedBP2024-20053Aug 2, 2026Aug 10, 2026Official source ↗
City of CalgaryCalgary Building Permitsbuilding_permit · record_updatedBP2026-03312Apr 15, 2026Jul 29, 2026Official source ↗
City of CalgaryCalgary Building Permitsbuilding_permit · record_updatedBP2024-20055Mar 25, 2026Jul 29, 2026Official source ↗
City of CalgaryCalgary Building Permitsbuilding_permit · record_updatedBP2024-15005Mar 25, 2026Jul 29, 2026Official source ↗
City of CalgaryCalgary Building Permitsbuilding_permit · record_updatedBP2024-12632Mar 25, 2026Jul 29, 2026Official source ↗
City of CalgaryCalgary Building Permitsbuilding_permit · record_updatedBP2024-09865Mar 25, 2026Jul 29, 2026Official source ↗
City of CalgaryCalgary Building Permitsbuilding_permit · record_updatedBP2024-15006Mar 24, 2026Jul 29, 2026Official source ↗
City of CalgaryCalgary Building Permitsbuilding_permit · record_updatedBP2024-11491Mar 24, 2026Jul 29, 2026Official source ↗
City of CalgaryCalgary Building Permitsbuilding_permit · record_updatedBP2024-10340Mar 24, 2026Jul 29, 2026Official source ↗
City of CalgaryCalgary Building Permitsbuilding_permit · record_updatedBP2024-09866Mar 24, 2026Jul 29, 2026Official source ↗
City of CalgaryCalgary Building Permitsbuilding_permit · record_updatedBP2026-02469Mar 20, 2026Jul 29, 2026Official source ↗
City of CalgaryCalgary Building Permitsbuilding_permit · record_updatedBP2024-08811Mar 19, 2026Jul 29, 2026Official source ↗
City of CalgaryCalgary Building Permitsbuilding_permit · record_updatedBP2025-23992Mar 10, 2026Jul 29, 2026Official source ↗
City of CalgaryCalgary Building Permitsbuilding_permit · record_updatedBP2025-24001Feb 15, 2026Jul 29, 2026Official source ↗
City of CalgaryCalgary Building Permitsbuilding_permit · record_updatedBP2025-23994Feb 15, 2026Jul 29, 2026Official source ↗
City of CalgaryCalgary Building Permitsbuilding_permit · record_updatedBP2025-23998Dec 25, 2025Jul 29, 2026Official source ↗
City of CalgaryCalgary Building Permitsbuilding_permit · record_updatedBP2025-23996Dec 25, 2025Jul 29, 2026Official source ↗
City of CalgaryCalgary Building Permitsbuilding_permit · record_updatedBP2025-21983Dec 24, 2025Jul 29, 2026Official source ↗
City of CalgaryCalgary Building Permitsbuilding_permit · record_updatedBP2025-16309Oct 5, 2025Jul 29, 2026Official source ↗
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