Construction Brief
ProjectsDP2025-06957
Worth watching · Calgary

Semi-detached dwelling (2 buildings), secondary suite (4 units), accessory residential building…

1910 21 AV NW · BANFF TRAIL

Recommended next action · Interpretation

Approach the applicant or project team about specification and preconstruction needs.

Development approval can precede detailed permits and trade procurement.

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

Location context

Project location

Mapped from the public-record address when this page loads. Confirm the official record before visiting.

Locating 1910 21 AV NW…

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Construction Brief interpretation

Why this matters

OpportunityWorth watching
Estimated project typeResidential
Estimated current stageDevelopment approved
Likely commercial windowPreconstructionNow to approximately 3 months
Commercial-window confidence High confidence
Record-link confidenceHighAddress-only association; verify the related records

Development approval can move a project toward detailed design and building permits.

Evidence behind the ranking

  • Project is still early enough for preconstruction follow-up
  • New or changed public record this week
  • 31 related public records linked to this project
  • Applicant identified in a public record

Relevant trades

Concrete

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

Medium confidence · Now to approximately 2 months
Plumbing

Rule-matched new construction or addition

Medium confidence
HVAC and mechanical

Rule-matched new construction or addition

Medium confidence
Electrical

Rule-matched new construction or addition

Medium confidence
Append-only history

Project timeline

  1. InterpretationHigh confidence

    Construction Brief assessment

    Project assessed as general activity at development approved

    First detected Oct 7, 2026 Underlying source ↗
  2. Verified fact

    Development permit field changed

    Status: in_review → issued · 1 more field changed

    First detected Oct 7, 2026 Official record ↗
  3. Verified fact

    Building permit field changed

    Latitude: 51.058633 → 51.058556 · 1 more field changed

    First detected Oct 5, 2026 Official record ↗
  4. Verified fact

    Building permit field changed

    Latitude: 51.058556 → 51.058633 · 1 more field changed

    First detected Oct 4, 2026 Official record ↗
  5. Verified fact

    Building permit field changed

    Latitude: 51.058633 → 51.058556 · 1 more field changed

    First detected Oct 3, 2026 Official record ↗
  6. Verified fact

    Development permit released

    Development permit released: NEW: SEMI-DETACHED DWELLING (2 BUILDINGS), SECONDARY SUITE (4 UNITS), ACCESSORY RESIDENTIAL BUILDING (GARAGE)

    First detected Oct 7, 2026 Official record ↗
  7. Verified fact

    Building permit field changed

    Latitude: 51.058556 → 51.058633 · 1 more field changed

    First detected Oct 2, 2026 Official record ↗
  8. Verified fact

    Building permit field changed

    Latitude: 51.058556 → 51.058633 · 1 more field changed

    First detected Oct 2, 2026 Official record ↗
  9. Verified fact

    Building permit field changed

    Latitude: 51.058633 → 51.058556 · 1 more field changed

    First detected Oct 1, 2026 Official record ↗
  10. Verified fact

    Building permit field changed

    Latitude: 51.058633 → 51.058556 · 1 more field changed

    First detected Sep 30, 2026 Official record ↗
  11. Verified fact

    Building permit field changed

    Status: issued → completed · 3 more fields changed

    First detected Sep 30, 2026 Official record ↗
  12. Verified fact

    Building permit field changed

    Status: issued → completed · 3 more fields changed

    First detected Sep 30, 2026 Official record ↗
  13. Verified fact

    Permit completed

    Permit completed: 3-storey, 3-unit rowhouse + 3 SS + north garage

    First detected Sep 30, 2026 Official record ↗
  14. Verified fact

    Permit completed

    Permit completed: 3-storey, 3-unit rowhouse + 3 SS

    First detected Sep 30, 2026 Official record ↗
  15. Verified fact

    Building permit field changed

    Latitude: 51.058556 → 51.058633 · 1 more field changed

    First detected Sep 28, 2026 Official record ↗
  16. Verified fact

    Building permit field changed

    Status: issued → completed · 3 more fields changed

    First detected Sep 27, 2026 Official record ↗
  17. Verified fact

    Permit completed

    Permit completed: Detached garage

    First detected Sep 27, 2026 Official record ↗
  18. Verified fact

    development_permit · sdab_decision

    development_permit · sdab_decision: NEW: SEMI-DETACHED DWELLING (2 BUILDINGS), SECONDARY SUITE (4 UNITS), ACCESSORY RESIDENTIAL BUILDING (GARAGE)

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

    Building permit issued

    Building permit issued: Garage

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

    Building permit issued

    Building permit issued: SFD,BSMT-DEV,FIREPLACE,DECK,PORCH

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

    Building permit issued

    Building permit issued: Garage

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

    Building permit issued

    Building permit issued: SFD,BSMT-DEV,FIREPLACE,DECK,PORCH

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

    development_permit · sdab_hearing

    development_permit · sdab_hearing: NEW: SEMI-DETACHED DWELLING (2 BUILDINGS), SECONDARY SUITE (4 UNITS), ACCESSORY RESIDENTIAL BUILDING (GARAGE)

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

    Building permit application

    Building permit application: Garage

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

    Building permit application

    Building permit application: SFD,BSMT-DEV,FIREPLACE,DECK,PORCH

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

    Building permit application

    Building permit application: Garage

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

    Building permit application

    Building permit application: SFD,BSMT-DEV,FIREPLACE,DECK,PORCH

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

    Permit completed

    Permit completed: SEMI-D,FIREPLACE,SSuite

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

    Building permit issued

    Building permit issued: Detached garage

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

    Building permit application

    Building permit application: Detached garage

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

    Development decision

    Development decision: NEW: SEMI-DETACHED DWELLING (2 BUILDINGS), SECONDARY SUITE (4 UNITS), ACCESSORY RESIDENTIAL BUILDING (GARAGE)

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

    Permit completed

    Permit completed: Garage

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

    Building permit issued

    Building permit issued: 3-storey, 3-unit rowhouse + 3 SS + north garage

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

    Building permit issued

    Building permit issued: 3-storey, 3-unit rowhouse + 3 SS

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

    Permit completed

    Permit completed: SEMI-D,FIREPLACE,DECK,SSuite

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

    Development application

    Development application: NEW: SEMI-DETACHED DWELLING (2 BUILDINGS), SECONDARY SUITE (4 UNITS), ACCESSORY RESIDENTIAL BUILDING (GARAGE)

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

    Permit completed

    Permit completed: Garage

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

    Permit completed

    Permit completed: SEMI-D,FIREPLACE,PORCH,SSuite

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

    Permit completed

    Permit completed: Garage

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

    Permit completed

    Permit completed: SEMI-D,FIREPLACE,PORCH,SSuite

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

    Permit completed

    Permit completed: SEMI-D,FIREPLACE,PORCH

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

    Permit completed

    Permit completed: SEMI-D,FIREPLACE,PORCH,SSuite

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

    Building permit application

    Building permit application: 3-storey, 3-unit rowhouse + 3 SS + north garage

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

    Permit completed

    Permit completed: SEMI-D,FIREPLACE,DECK,SSuite

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

    Building permit issued

    Building permit issued: Garage

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

    Building permit issued

    Building permit issued: SEMI-D,FIREPLACE,SSuite

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

    Building permit issued

    Building permit issued: Garage

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

    Building permit issued

    Building permit issued: SEMI-D,FIREPLACE,SSuite

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

    Building permit application

    Building permit application: 3-storey, 3-unit rowhouse + 3 SS

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

    Development decision

    Development decision: NEW: DWELLING UNIT (1 BUILDING), SECONDARY SUITES, ACCESSORY RESIDENTIAL BUILDING (GARAGE)

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

    Permit completed

    Permit completed: SFD,FIREPLACE,PORCH,SSuite

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

    Permit completed

    Permit completed: SEMI-D,FIREPLACE,DECK,PORCH,SSuite

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

    Permit completed

    Permit completed: SEMI-D,FIREPLACE,DECK,PORCH,SSuite

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

    Permit completed

    Permit completed: Garage

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

    Permit completed

    Permit completed: Garage

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

    Permit completed

    Permit completed: SFD,FIREPLACE,DECK,PORCH,SSuite

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

    Permit completed

    Permit completed: Garage

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

    Permit completed

    Permit completed: Garage

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

    Permit completed

    Permit completed: Garage

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

    Development application

    Development application: NEW: DWELLING UNIT (1 BUILDING), SECONDARY SUITES, ACCESSORY RESIDENTIAL BUILDING (GARAGE)

    First detected Jul 29, 2026 Official record ↗
Official evidence

Related public records

SourceRecordRecord dateRetrievedEvidence
City of CalgaryCalgary Development PermitsDevelopment permit field changedDP2025-06957Oct 6, 2026Oct 7, 2026Official source ↗
City of CalgaryCalgary Building PermitsBuilding permit field changedBP2025-19283Oct 4, 2026Oct 5, 2026Official source ↗
City of CalgaryCalgary Building PermitsBuilding permit field changedBP2026-06796Oct 1, 2026Oct 2, 2026Official source ↗
City of CalgaryCalgary Building PermitsBuilding permit field changedBP2025-21990Sep 29, 2026Sep 30, 2026Official source ↗
City of CalgaryCalgary Development Permitsdevelopment_permit · record_updatedDP2025-02671Sep 3, 2026Sep 4, 2026Official source ↗
City of CalgaryCalgary Building Permitsbuilding_permit · record_updatedBP2026-09668Jul 13, 2026Jul 29, 2026Official source ↗
City of CalgaryCalgary Building Permitsbuilding_permit · record_updatedBP2026-09665Jul 13, 2026Jul 29, 2026Official source ↗
City of CalgaryCalgary Building Permitsbuilding_permit · record_updatedBP2026-09667Jul 13, 2026Jul 29, 2026Official source ↗
City of CalgaryCalgary Building Permitsbuilding_permit · record_updatedBP2026-09666Jul 13, 2026Jul 29, 2026Official source ↗
City of CalgaryCalgary Building Permitsbuilding_permit · record_updatedBP2025-12957Jul 13, 2026Jul 29, 2026Official source ↗
City of CalgaryCalgary Building Permitsbuilding_permit · record_updatedBP2024-26081Mar 5, 2026Jul 29, 2026Official source ↗
City of CalgaryCalgary Building Permitsbuilding_permit · record_updatedBP2024-19028Jan 13, 2026Jul 29, 2026Official source ↗
City of CalgaryCalgary Building Permitsbuilding_permit · record_updatedBP2025-05812Dec 3, 2025Jul 29, 2026Official source ↗
City of CalgaryCalgary Building Permitsbuilding_permit · record_updatedBP2025-05811Dec 3, 2025Jul 29, 2026Official source ↗
City of CalgaryCalgary Building Permitsbuilding_permit · record_updatedBP2025-05810Dec 3, 2025Jul 29, 2026Official source ↗
City of CalgaryCalgary Building Permitsbuilding_permit · record_updatedBP2025-05809Dec 3, 2025Jul 29, 2026Official source ↗
City of CalgaryCalgary Building Permitsbuilding_permit · record_updatedBP2024-20562Nov 26, 2025Jul 29, 2026Official source ↗
City of CalgaryCalgary Building Permitsbuilding_permit · record_updatedBP2024-20560Nov 26, 2025Jul 29, 2026Official source ↗
City of CalgaryCalgary Building Permitsbuilding_permit · record_updatedBP2024-19026Oct 28, 2025Jul 29, 2026Official source ↗
City of CalgaryCalgary Building Permitsbuilding_permit · record_updatedBP2025-12958Oct 20, 2025Jul 29, 2026Official source ↗
City of CalgaryCalgary Building Permitsbuilding_permit · record_updatedBP2025-12956Oct 20, 2025Jul 29, 2026Official source ↗
City of CalgaryCalgary Building Permitsbuilding_permit · record_updatedBP2025-12955Oct 20, 2025Jul 29, 2026Official source ↗
City of CalgaryCalgary Building Permitsbuilding_permit · record_updatedBP2024-26080Sep 29, 2025Jul 29, 2026Official source ↗
City of CalgaryCalgary Building Permitsbuilding_permit · record_updatedBP2025-01512Sep 25, 2025Jul 29, 2026Official source ↗
City of CalgaryCalgary Building Permitsbuilding_permit · record_updatedBP2025-01510Sep 25, 2025Jul 29, 2026Official source ↗
City of CalgaryCalgary Building Permitsbuilding_permit · record_updatedBP2024-20563Sep 8, 2025Jul 29, 2026Official source ↗
City of CalgaryCalgary Building Permitsbuilding_permit · record_updatedBP2024-20561Sep 8, 2025Jul 29, 2026Official source ↗
City of CalgaryCalgary Building Permitsbuilding_permit · record_updatedBP2025-03752Sep 4, 2025Jul 29, 2026Official source ↗
City of CalgaryCalgary Building Permitsbuilding_permit · record_updatedBP2025-03753Aug 31, 2025Jul 29, 2026Official source ↗
City of CalgaryCalgary Building Permitsbuilding_permit · record_updatedBP2025-01513Aug 13, 2025Jul 29, 2026Official source ↗
City of CalgaryCalgary Building Permitsbuilding_permit · record_updatedBP2025-01511Aug 13, 2025Jul 29, 2026Official source ↗
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