Dome Tower
Office/Retail · 2 separately assessed accounts · office tower · built 1976 · 333 7 Ave SW
- Civic address
- 333 7 Ave SW, Calgary, AB
- Community
- Downtown Commercial Core (DNC)
- City sub-property use
- C108 Office/Retail × 2 · all Office/Retail sites
- Land use district
- CR20-C20/R20 — Commercial - Residential Core (Commercial - Core)
- Height rank
- #17 of 580 citywide · #14 of 111 in Downtown Commercial Core
- Site coverage
- 99% of parcel under LiDAR footprints
- Parcel pieces
- 11 titled pieces · roll 068079003 and 1 more
- Coordinates
- 51.046376, -114.068502
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: 3rd Street SW, 61 m straight-line (route 201/202). Planned Green Line station 7 Avenue SW is 93 m away (Downtown Segment, 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
- Dome Tower
- Description
- building in Alberta, Canada
- Stated height
- 141 m (LiDAR roof 145.7 m)
- Floors
- 35
- Opened
- 1977
- Style
- modern architecture
- Identifier
- Wikidata Q5290014 (CC0)
- Name
- Home Oil Tower, Calgary
- Description
- building in Alberta, Canada
- Stated height
- 137 m (LiDAR roof 145.7 m)
- Floors
- 34
- Opened
- 1977
- Style
- International Style
- Identifier
- Wikidata Q5888604 (CC0)
Assessment history
2 separately assessed accounts sit on this parcel (office condominium units or split accounts). 2026 assessed values range $6.2M to $96.7M, median $51.4M, total $102.8M. 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 068079003 (highest-assessed account on the parcel) · Office/Retail
Published values by roll year
| Roll year | Assessed value | Change |
|---|---|---|
| 2005 | $197.1M | — |
| 2006 | $243.7M | 23.6% |
| 2007 | $343.7M | 41.0% |
| 2008 | $466.6M | 35.8% |
| 2009 | $462.8M | -0.8% |
| 2010 | $375.3M | -18.9% |
| 2011 | $367.6M | -2.1% |
| 2012 | $397.9M | 8.3% |
| 2013 | $530.3M | 33.3% |
| 2014 | $574.0M | 8.3% |
| 2015 | $603.5M | 5.1% |
| 2016 | $531.0M | -12.0% |
| 2017 | $427.7M | -19.5% |
| 2018 | $322.5M | -24.6% |
| 2019 | $169.8M | -47.4% |
| 2020 | $188.9M | 11.3% |
| 2021 | $154.4M | -18.3% |
| 2022 | $93.6M | -39.3% |
| 2023 | $111.2M | 18.7% |
| 2024 | $118.7M | 6.8% |
| 2025 | $115.0M | -3.2% |
| 2026 | $96.7M | -15.9% |
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 20 since 2012
| Applied | Permit | Category · description | Status |
|---|---|---|---|
| 2023-06-05 | DP2023-03681 | Change of Use - Permitted Use CHANGE OF USE: OFFICE | Cancelled |
| 2023-02-24 | DP2023-01178 | Change of Use - Permitted Use CHANGE OF USE: RETAIL AND CONSUMER SERVICE | Cancelled |
| 2022-02-04 | DP2022-00745 | Change of Use - Discretionary Use or Relaxations Required CHANGE OF USE: RETAIL STORE | Cancelled |
| 2020-11-23 | DP2020-7565 | Change of Use - Permitted Use CHANGE OF USE: RESTAURANT: FOOD SERVICE ONLY - SMALL | Cancelled |
| 2020-11-09 | DP2020-7219 | Change of Use - Permitted Use CHANGE OF USE: RETAIL AND CONSUMER SERVICE | Cancelled |
| 2020-07-31 | DP2020-4783 | Change of Use - Permitted Use CHANGE OF USE: RETAIL AND CONSUMER SERVICE | Cancelled |
| 2020-07-08 | DP2020-4190 | Change of Use - Permitted Use CHANGE OF USE: RESTAURANT: FOOD SERVICE ONLY - SMALL | Cancelled |
| 2019-02-13 | DP2019-0704 | Signs - Permitted Use NEW: SIGN - CLASS B & D (FASCIA SIGN, PROJECTING SIGN) | Released Approval |
Recent building permits 215 since 2012 · 127 in the City’s office class
| Applied | Permit | Class · work | Est. cost | Status |
|---|---|---|---|---|
| 2026-08-19 | BP2026-15752 | 3402 - Office · Improvement Interior Alteration - Office | $994,125 | Issued Permit |
| 2026-07-28 | BP2026-14211 | 3401 - Bank · Improvement Exterior alts. | $30,000 | Issued Permit |
| 2026-07-28 | BP2026-14258 | 3402 - Office · Improvement Interior alterations | $150,000 | Issued Permit |
| 2026-07-28 | BP2026-14207 | 3401 - Bank · Improvement Interior alts | $160,000 | Issued Permit |
| 2026-07-08 | BP2026-12665 | 3402 - Office · Unspecified Interior Alterations - FA Repair | $100,000 | Issued Permit |
| 2026-04-09 | BP2026-05576 | 3402 - Office · Improvement Interior Alt-Office | $30,000 | Issued Permit |
| 2026-04-01 | BP2026-05109 | 3106 - Retail Shop · Unspecified Fire alarm system repair | $85,000 | Completed |
| 2026-03-17 | BP2026-04037 | 3402 - Office · Improvement Interior Alterations -Pillar Four Captial | $30,000 | Completed |
Declared estimated project cost across all 215 non-residential building permits on the parcel since 2012: $75.3M. 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.
- Lancaster Building304 8 Ave SW
- First Canadian Centre323R 6 Ave SW
- Stephen Avenue Place225 7 Ave SW
- Canada Life Assurance Building301 8 Ave SW
- Intact Place311 6 Ave SW
Dome Tower questions
Answers drawn from the record.
How tall is Dome Tower?
The main structure on the parcel has a LiDAR roof height of 145.7 m in The City of Calgary’s 3D building data, a storey-equivalent of about 37 at 3.9 m per storey. Wikidata records an architectural height of 141 m. Wikidata records 35 floors.
When was Dome Tower built?
The City’s assessment roll records 1976 as the year of construction. Wikidata records 1977 as the opening year.
Which CTrain station is closest to Dome Tower?
3rd Street SW Station, 61 m in a straight line from the parcel centroid.
Is office space available at Dome 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.