340 12 Ave SW
Office · high-rise office building · built 1981 · 340 12 Ave SW
- Civic address
- 340 12 Ave SW, Calgary, AB
- Community
- Beltline (BLN)
- City sub-property use
- C101 Office · all Office sites
- Land use district
- CC-X — Centre City Mixed Use District (Commercial)
- Height rank
- #82 of 580 citywide · #10 of 119 in Beltline
- Site coverage
- 60% of parcel under LiDAR footprints
- Parcel pieces
- 1 titled piece · roll 068134394
- Coordinates
- 51.041912, -114.070271
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 Beltline 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, 528 m straight-line (route 201/202). Planned Green Line station Beltline is 300 m away (Downtown Segment, per the City’s Green Line map).
Plus 15
Nearest Plus 15 segment: 172 m. Not on the network.
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 068134394 · Office
Published values by roll year
| Roll year | Assessed value | Change |
|---|---|---|
| 2005 | $13.3M | — |
| 2006 | $15.8M | 18.8% |
| 2007 | $18.4M | 16.8% |
| 2008 | $29.3M | 58.9% |
| 2009 | $38.0M | 29.6% |
| 2010 | $34.4M | -9.5% |
| 2011 | $17.5M | -49.1% |
| 2012 | $19.2M | 9.5% |
| 2013 | $30.2M | 57.4% |
| 2014 | $36.8M | 21.8% |
| 2015 | $42.2M | 14.7% |
| 2016 | $33.6M | -20.4% |
| 2017 | $36.7M | 9.2% |
| 2018 | $24.2M | -34.1% |
| 2019 | $16.6M | -31.4% |
| 2020 | $16.8M | 1.3% |
| 2021 | $13.0M | -22.5% |
| 2022 | $10.2M | -21.5% |
| 2023 | $5.2M | -49.5% |
| 2024 | $5.3M | 3.7% |
| 2025 | $6.4M | 19.4% |
| 2026 | $6.9M | 8.0% |
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 8 since 2012
| Applied | Permit | Category · description | Status |
|---|---|---|---|
| 2026-07-23 | DP2026-04268 | Signs - Permitted Use NEW: SIGN - CLASS B (FASCIA SIGN), SIGN - CLASS D (PROJECTING SIGN) | Hold |
| 2024-06-24 | DP2024-04640 | Signs - Discretionary Use - Third Party Signs TEMPORARY USE: SIGN - CLASS F (THIRD PARTY ADVERTISING SIGN - 5 YEARS) | Released Approval |
| 2023-11-23 | DP2023-08289 | Signs - Discretionary Use - Third Party Signs TEMPORARY USE: SIGN - CLASS F (THIRD PARTY ADVERTISING SIGN) | Refused Refusal |
| 2022-12-15 | DP2022-08488 | Surface Parking Lots TEMPORARY USE: PARKING LOT - GRADE (TEMPORARY) (3 YEARS) | Released Approval |
| 2022-12-15 | DP2022-08489 | Surface Parking Lots TEMPORARY USE: PARKING LOT - GRADE (TEMPORARY) | Cancelled |
| 2022-12-08 | DP2022-08349 | Signs - Permitted Use NEW: SIGN - CLASS B (FASCIA SIGNS - 2) | Released Approval |
| 2022-10-20 | DP2022-07364 | Signs - Permitted Use with Relaxation NEW: SIGN - CLASS B (FASCIA SIGNS - 2) - SIGNABLE AREA | Released Approval |
| 2020-06-01 | DP2020-3377 | Signs - Permitted Use with Relaxation NEW: SIGN - CLASS D (PROJECTING SIGN) - LOCATED WITHIN ROAD RIGHTS-OF-WAY SETBACK | Released Approval |
Recent building permits 35 since 2012 · 33 in the City’s office class
| Applied | Permit | Class · work | Est. cost | Status |
|---|---|---|---|---|
| 2026-08-24 | BP2026-16041 | 3402 - Office · Improvement | $450,000 | Pending Plans Review Assignment |
| 2026-07-15 | BP2026-13219 | 3402 - Office · Improvement Interior Alterations | $80,000 | Issued Permit |
| 2026-06-22 | BP2026-11485 | 3402 - Office · Improvement | $180,000 | Pending Plans Review Assignment |
| 2026-06-17 | BP2026-11086 | 3402 - Office · Improvement Interior Alteration | $200,000 | Issued Permit |
| 2026-05-21 | BP2026-08921 | 3499 - Office/Bank/Professional Misc. · Improvement Interior Alterations | $75,000 | Issued Permit |
| 2026-05-19 | BP2026-08760 | 3402 - Office · Improvement Interior Alterations - Office | $60,000 | Completed |
| 2026-04-14 | BP2026-05944 | 3402 - Office · Improvement Interior Alteration - Washrooms | $100,000 | Completed |
| 2026-02-27 | BP2026-03016 | 3402 - Office · Improvement Interior alterations | $130,000 | Completed |
Declared estimated project cost across all 35 non-residential building permits on the parcel since 2012: $4.1M. 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.
- Calgary Masonic Temple330 12 Ave SW
- Metals Limited Warehouse326 11 Ave SW
- G.F. & J. Galt & Co. Wholesale Grocers Warehouse313 10 Ave SW
340 12 Ave SW questions
Answers drawn from the record.
How tall is 340 12 Ave SW?
The main structure on the parcel has a LiDAR roof height of 57.8 m in The City of Calgary’s 3D building data, a storey-equivalent of about 15 at 3.9 m per storey.
When was 340 12 Ave SW built?
The City’s assessment roll records 1981 as the year of construction.
Which CTrain station is closest to 340 12 Ave SW?
3rd Street SW Station, 528 m in a straight line from the parcel centroid.
Is office space available at 340 12 Ave SW?
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.