Construction Brief
ProjectsDP2022-03023
General activity · Calgary

Rowhouse with four secondary suites

4520 20 ST SW · ALTADORE

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 4520 20 ST SW…

Checking the project address against Calgary map data…

Open in OpenStreetMap ↗
Construction Brief interpretation

Why this matters

OpportunityGeneral activity
Estimated project typeResidential
Estimated current stageDevelopment approved
Likely commercial windowPreconstructionNow to approximately 3 months
Commercial-window confidence Medium confidence

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
  • Applicant identified in a public record

Relevant trades

Framing and structural materials

New rowhouse building with four secondary suites and an accessory garage.

High confidence
Secondary-suite materials

New rowhouse building with four secondary suites and an accessory garage.

High confidence
Garage materials

New rowhouse building with four secondary suites and an accessory garage.

High confidence
Exterior materials

New rowhouse building with four secondary suites and an accessory garage.

High confidence
Append-only history

Project timeline

  1. InterpretationMedium confidence

    Construction Brief assessment

    Project assessed as general activity at development approved

    First detected Oct 31, 2026 Underlying source ↗
  2. Verified fact

    Development permit first detected

    Development permit first detected by Construction Brief.

    First detected Oct 31, 2026 Official record ↗
  3. Verified fact

    Development permit released

    Development permit released: NEW: ROWHOUSE (1 BUILDING), SECONDARY SUITE (4 SUITES), ACCESSORY RESIDENTIAL BUILDING (GARAGE)

    First detected Oct 31, 2026 Official record ↗
  4. Verified fact

    Development decision

    Development decision: NEW: ROWHOUSE (1 BUILDING), SECONDARY SUITE (4 SUITES), ACCESSORY RESIDENTIAL BUILDING (GARAGE)

    First detected Oct 31, 2026 Official record ↗
  5. Verified fact

    Development application

    Development application: NEW: ROWHOUSE (1 BUILDING), SECONDARY SUITE (4 SUITES), ACCESSORY RESIDENTIAL BUILDING (GARAGE)

    First detected Oct 31, 2026 Official record ↗
Official evidence

Related public records

SourceRecordRecord dateRetrievedEvidence
City of CalgaryCalgary Development PermitsDevelopment permit first detectedDP2022-03023Oct 31, 2026Oct 31, 2026Official source ↗
Calgary pilot

Want this Calgary feed by trade and value each morning?

Request pilot access
Corrections

Report an error

Submit supporting detail privately. Contact information is not displayed publicly.