Sun Life Plaza
Office · office tower · built 1982 · 120 4 Ave SW
- Civic address
- 120 4 Ave SW, Calgary, AB
- Community
- Downtown Commercial Core (DNC)
- City sub-property use
- C101 Office · all Office sites
- Land use district
- CR20-C20/R20 — Commercial - Residential Core (Commercial - Core)
- Height rank
- #28 of 580 citywide · #24 of 111 in Downtown Commercial Core
- Site coverage
- 88% of parcel under LiDAR footprints
- Parcel pieces
- 6 titled pieces · roll 068034891
- Coordinates
- 51.049797, -114.063502
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 Downtown Commercial Core median and tallest, and against the city.
Access
Public-geometry tests only; confirm routes, entrances and hours with the building.
CTrain
Nearest station: 1st Street SW, 359 m straight-line (route 201/202). Planned Green Line station Eau Claire is 418 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
- Sun Life Plaza
- Description
- office in Calgary, Canada
- Opened
- 1984
- Identifier
- Wikidata Q7638398 (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 068034891 · Office
Published values by roll year
| Roll year | Assessed value | Change |
|---|---|---|
| 2005 | $77.9M | — |
| 2006 | $93.3M | 19.7% |
| 2007 | $138.8M | 48.8% |
| 2008 | $205.3M | 47.9% |
| 2009 | $202.1M | -1.6% |
| 2010 | $159.9M | -20.9% |
| 2011 | $125.6M | -21.5% |
| 2012 | $127.8M | 1.8% |
| 2013 | $178.7M | 39.7% |
| 2014 | $229.8M | 28.6% |
| 2015 | $257.9M | 12.2% |
| 2016 | $221.5M | -14.1% |
| 2017 | $174.1M | -21.4% |
| 2018 | $120.8M | -30.6% |
| 2019 | $65.8M | -45.5% |
| 2020 | $85.2M | 29.5% |
| 2021 | $72.1M | -15.4% |
| 2022 | $60.7M | -15.8% |
| 2023 | $66.4M | 9.4% |
| 2024 | $67.9M | 2.2% |
| 2025 | $61.2M | -9.9% |
| 2026 | $56.2M | -8.2% |
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 |
|---|---|---|---|
| 2024-01-24 | DP2024-00554 | Surface Parking Lots TEMPORARY USE: PARKING LOT - GRADE (3 YEARS) | Released Approval |
| 2024-01-24 | DP2024-00555 | Surface Parking Lots TEMPORARY USE: PARKING LOT - GRADE | Released Approval |
| 2022-08-02 | DP2022-05414 | Change of Use - Discretionary Use or Relaxations Required CHANGE OF USE: CHILD CARE SERVICE | Cancelled |
| 2021-06-14 | DP2021-4299 | Signs - Discretionary Use NEW: SIGN - CLASS C (FREESTANDING SIGNS - 2) | Released Approval |
Recent building permits 68 since 2012 · 53 in the City’s office class
| Applied | Permit | Class · work | Est. cost | Status |
|---|---|---|---|---|
| 2026-07-17 | BP2026-13379 | 2306 - Parking Garage · Improvement Parkade Repair - Ampersand | $63,889 | Issued Permit |
| 2026-04-24 | BP2026-06745 | 3402 - Office · Improvement Roof repair | $1.7M | Issued Permit |
| 2026-03-09 | BP2026-03556 | 4002 - Vacant · Improvement Leasehold improvements - Interior Whitebox | $180,000 | Completed |
| 2026-03-06 | BP2026-03464 | 3402 - Office · Improvement Interior Alteration | $901,950 | Completed |
| 2025-07-25 | BP2025-14544 | 2306 - Parking Garage · Improvement Parking Garage Repair | $120,750 | Issued Permit |
| 2025-05-15 | BP2025-09157 | 3402 - Office · Improvement | $250,000 | Pending Plans Review Assignment |
| 2025-04-25 | BP2025-07569 | 3402 - Office · Improvement Interior renovation | $85,000 | Completed |
| 2025-03-04 | BP2025-03656 | 3402 - Office · Improvement Interior renovation | $150,000 | Completed |
Declared estimated project cost across all 68 non-residential building permits on the parcel since 2012: $34.6M. 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.
- TC Energy Tower120 5 Ave SW
Sun Life Plaza questions
Answers drawn from the record.
How tall is Sun Life Plaza?
The main structure on the parcel has a LiDAR roof height of 117.6 m in The City of Calgary’s 3D building data, a storey-equivalent of about 30 at 3.9 m per storey.
When was Sun Life Plaza built?
The City’s assessment roll records 1982 as the year of construction. Wikidata records 1984 as the opening year.
Which CTrain station is closest to Sun Life Plaza?
1st Street SW Station, 359 m in a straight line from the parcel centroid.
Is office space available at Sun Life Plaza?
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.