Construction Brief
ProjectsBP2025-18702
Worth watching · Calgary

Semi-detached dwelling (2 buildings), secondary suites (basement - 4), accessory residential…

20 27 AV SW · ERLTON

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 20 27 AV SW…

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Construction Brief interpretation

Why this matters

OpportunityWorth watching
Estimated project typeResidential
Estimated current stageBuilding permit application
Likely commercial windowMajor-trade estimatingNow to approximately 4 months
Commercial-window confidence Medium confidence
Record-link confidenceHighAddress-only association; verify the related records

The source indicates new-build or major building scope at permit application; trade estimating may be active, but no procurement date is published.

Evidence behind the ranking

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

Relevant trades

HVAC and mechanical

Explicit permit class or work description

High confidence
Plumbing

Rule-matched new construction or addition

Medium confidence
Electrical

Rule-matched new construction or addition

Medium confidence
Concrete

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

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

Project timeline

  1. InterpretationHigh confidence

    Construction Brief assessment

    Project assessed as general activity at occupancy or completion

    First detected Aug 18, 2026 Underlying source ↗
  2. Verified fact

    Permit completed

    Permit completed: SFD,BSMT-DEV,FIREPLACE,GARAGE,DECK,PORCH

    First detected Aug 18, 2026 Official record ↗
  3. Verified fact

    Development permit released

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

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

    Development permit released

    Development permit released: REVISION: SINGLE DETACHED DWELLING (MECHANICAL EQUIPMENT LOCATION)

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

    Permit completed

    Permit completed: SEMI-D,BSMT-DEV,FIREPLACE,GARAGE,DECK,PORCH

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

    Permit completed

    Permit completed: SEMI-D,BSMT-DEV,FIREPLACE,GARAGE,DECK,PORCH

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

    Development decision

    Development decision: REVISION: SINGLE DETACHED DWELLING (MECHANICAL EQUIPMENT LOCATION)

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

    Development application

    Development application: REVISION: SINGLE DETACHED DWELLING (MECHANICAL EQUIPMENT LOCATION)

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

    Development decision

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

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

    Development application

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

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

    Building permit issued

    Building permit issued: Garage

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

    Building permit issued

    Building permit issued: SFD,FIREPLACE,DECK,PORCH,SSuite

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

    Building permit issued

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

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

    Permit completed

    Permit completed: Demolition at 2021 27 AV SW

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

    Building permit application

    Building permit application: Garage

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

    Building permit application

    Building permit application: SFD,FIREPLACE,DECK,PORCH,SSuite

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

    Building permit issued

    Building permit issued: Demolition at 2021 27 AV SW

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

    Building permit application

    Building permit application: Demolition at 2021 27 AV SW

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

    Building permit application

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

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

    Development permit released

    Development permit released: NEW: SINGLE DETACHED DWELLING

    First detected Jul 29, 2026 Official record ↗
Official evidence

Related public records

SourceRecordRecord dateRetrievedEvidence
City of CalgaryCalgary Building Permitsbuilding_permit · record_updatedBP2025-18486Aug 19, 2026Aug 20, 2026Official source ↗
City of CalgaryCalgary Development Permitsdevelopment_permit · record_updatedDP2026-01272Jul 13, 2026Jul 29, 2026Official source ↗
City of CalgaryCalgary Development Permitsdevelopment_permit · record_updatedDP2025-07232Jul 13, 2026Jul 29, 2026Official source ↗
City of CalgaryCalgary Building Permitsbuilding_permit · record_updatedBP2025-12549Apr 25, 2026Jul 29, 2026Official source ↗
City of CalgaryCalgary Building Permitsbuilding_permit · record_updatedBP2025-12548Apr 25, 2026Jul 29, 2026Official source ↗
City of CalgaryCalgary Building Permitsbuilding_permit · record_updatedBP2025-18703Oct 15, 2025Jul 29, 2026Official source ↗
City of CalgaryCalgary Building Permitsbuilding_permit · record_updatedBP2025-18702Oct 15, 2025Jul 29, 2026Official source ↗
City of CalgaryCalgary Building Permitsbuilding_permit · record_updatedBP2025-18551Oct 13, 2025Jul 29, 2026Official source ↗
City of CalgaryCalgary Development Permitsdevelopment_permit · record_updatedDP2025-02609Sep 16, 2025Jul 29, 2026Official source ↗
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