Canterra Tower
Office · office tower · built 1987 · 400 3 Ave SW
- Civic address
- 400 3 Ave SW, Calgary, AB
- Community
- Eau Claire (EAU)
- City sub-property use
- C101 Office · all Office sites
- Land use district
- DC — Direct Control (Direct Control)
- Height rank
- #6 of 580 citywide · #1 of 8 in Eau Claire
- Site coverage
- 42% of parcel under LiDAR footprints
- Parcel pieces
- 1 titled piece · roll 067235101
- Coordinates
- 51.050994, -114.070784
Massing and site plan
Left: isometric massing of every LiDAR structure on the parcel, at true scale, viewed from the south-west with 3.9 m storey lines. Right: plan of the parcel with surrounding footprints, Plus 15 walkways and nearby stations. Open this building in the 3D city →
How it compares
Roof height against the Eau Claire median and tallest, and against the city.
Access
Public-geometry tests only; confirm routes, entrances and hours with the building.
CTrain
Nearest station: 4th Street SW, 480 m straight-line (route 201/202). Planned Green Line station Eau Claire is 254 m away (TBD, per the City’s Green Line map).
Plus 15
The City’s Plus 15 walkway geometry touches this parcel; the plan above shows the connected segments in lime. Confirm access points, hours and the interior route with the building.
Named building record
Public-domain building facts from Wikidata attached by location. Where a stated height differs from the LiDAR roof, the difference usually reflects spires, screens or datum.
- Name
- Canterra Tower
- Description
- skyscraper
- Stated height
- 177 m (LiDAR roof 172.4 m)
- Floors
- 45
- Opened
- 1988
- Architect
- WZMH Architects
- Style
- postmodern architecture
- Identifier
- Wikidata Q1033771 (CC0)
Assessment history
Assessed values are The City of Calgary’s taxation figures by roll year, not sale prices or rents; Alberta does not publish transaction prices.
Roll 067235101 · Office
Published values by roll year
| Roll year | Assessed value | Change |
|---|---|---|
| 2005 | $203.2M | — |
| 2006 | $282.0M | 38.8% |
| 2007 | $361.0M | 28.0% |
| 2008 | $502.3M | 39.1% |
| 2009 | $485.7M | -3.3% |
| 2010 | $412.9M | -15.0% |
| 2011 | $361.6M | -12.4% |
| 2012 | $360.5M | -0.3% |
| 2013 | $471.3M | 30.7% |
| 2014 | $514.2M | 9.1% |
| 2015 | $549.2M | 6.8% |
| 2016 | $512.8M | -6.6% |
| 2017 | $447.2M | -12.8% |
| 2018 | $428.4M | -4.2% |
| 2019 | $320.8M | -25.1% |
| 2020 | $284.5M | -11.3% |
| 2021 | $245.0M | -13.9% |
| 2022 | $188.5M | -23.1% |
| 2023 | $217.2M | 15.2% |
| 2024 | $126.6M | -41.7% |
| 2025 | $115.0M | -9.2% |
| 2026 | $114.0M | -0.9% |
Development and building permits
Applications the City has located on this parcel since 2012, from the Development Permits and Building Permits datasets.
Recent development permits 4 since 2012
| Applied | Permit | Category · description | Status |
|---|---|---|---|
| 2019-03-28 | DP2019-1462 | Change of Use - With Change to Site Plan CHANGES TO SITE PLAN: MULTI-USE COMMERCIAL (LANDSCAPE) | Released Approval |
| 2016-11-17 | DP2016-4719 | Signs - Discretionary Use NEW: SIGN - CLASS C (FREESTANDING SIGN) | Cancelled |
| 2016-09-06 | DP2016-3656 | Signs - Discretionary Use NEW: SIGN - CLASS 1 & 2 (WINDOW IDENTIFICATION SIGNS - 18, FREESTANDING IDENTIFICATION SIGN) | Released Approval |
| 2013-07-15 | DP2013-2870 | Change of Use - Discretionary Use or Relaxations Required CHANGE OF USE: OFFICES | Released Approval |
Recent building permits 99 since 2012 · 87 in the City’s office class
| Applied | Permit | Class · work | Est. cost | Status |
|---|---|---|---|---|
| 2026-08-05 | BP2026-14701 | 3402 - Office · Unspecified Fire alarm alterations | $171,946 | Issued Permit |
| 2026-04-13 | BP2026-05844 | 3402 - Office · Improvement Interior alterations | $20,000 | Issued Permit |
| 2026-04-06 | BP2026-05294 | 3402 - Office · Improvement Interior Alterations | $185,000 | Completed |
| 2025-12-05 | BP2025-23245 | 3402 - Office · Improvement Interior Alterations | $2.1M | Issued Permit |
| 2025-10-15 | BP2025-20194 | 3402 - Office · Improvement Interior alteration | $300,000 | Completed |
| 2025-07-16 | BP2025-13784 | 3402 - Office · Improvement Interior Alterations | $400,000 | Completed |
| 2025-07-16 | BP2025-13752 | 3402 - Office · Improvement Interior alterations - CNRL - 400 3rd Ave - North Tower Floor 20 | $682,000 | Completed |
| 2025-07-16 | BP2025-13802 | 3402 - Office · Improvement Interior Partition Removal | $8,000 | Completed |
Declared estimated project cost across all 99 non-residential building permits on the parcel since 2012: $43.2M. Permit descriptions are the City’s records at retrieval; applicant and contractor names are not reproduced.
Nearby office buildings
The six nearest office building sites in the record, by straight-line distance between parcel centroids.
- Shell Centre400 4 Ave SW
- Centennial Place555 2 Ave SW
Canterra Tower questions
Answers drawn from the record.
How tall is Canterra Tower?
The main structure on the parcel has a LiDAR roof height of 172.4 m in The City of Calgary’s 3D building data, a storey-equivalent of about 44 at 3.9 m per storey. Wikidata records an architectural height of 177 m. Wikidata records 45 floors.
When was Canterra Tower built?
The City’s assessment roll records 1987 as the year of construction. Wikidata records 1988 as the opening year.
Which CTrain station is closest to Canterra Tower?
4th Street SW Station, 480 m in a straight line from the parcel centroid.
Is office space available at Canterra Tower?
This profile is built from public records and does not track availability, rents or tenancy. Submit a private requirement and current options in the building or nearby will be confirmed through Commercially.
Public record sources: Current Year Property Assessments (Parcel), Historical Property Assessments (Parcel), Assessment Subproperty Use Codes, 3D Buildings - Citywide (LiDAR roof outlines), Land Use Districts, Transit LRT Stations, Green Line Stations, Plus 15, Historic Resource (Inventory of Evaluated Historic Resources), Development Permits, Building Permits, Calgary Existing Buildings - Performance Metrics (BenchmarkYYC) — The City of Calgary, retrieved 2026-09-21. Contains information licensed under the Open Government Licence – City of Calgary. Building names, floor counts and architects, where shown, come from Wikidata (CC0). No brokerage, listing-data or commercial research source is used.
Boundary: Assessed values are the City’s assessment-roll figures for taxation and are not sale prices, asking rents, vacancy or availability; Alberta does not publish transaction prices. LiDAR heights are roof-surface elevations above the lowest ground point at the building perimeter and can differ from architectural heights. Storey equivalents are derived at 3.9 m per storey and are not floor counts. Distances are straight-line. Permit descriptions are the City’s records at retrieval and do not establish current use, tenancy or availability. Read the methodology.