OfficeBuildings.ca / Downtown Commercial Core · Calgary office building record

Downtown Commercial Core · Calgary office building record

Nexen Building, Calgary

Office · 2 separately assessed accounts · office tower · built 1979 · 801 7 Ave SW

Nexen Building, Calgary (801 7 Ave SW) is a 157.2 m office tower in Downtown Commercial Core, Calgary, recorded on the City assessment roll as built in 1979. Its main structure is the 13th tallest office roof of the 775 ranked in this record, and 11th of 119 in Downtown Commercial Core. The City assesses the 2 accounts on the parcel at $40.5M on the 2026 roll, 49th of 822 sites in the record by assessed value. A Plus 15 walkway touches the parcel. The nearest CTrain platform is 8th Street SW, 66 m away in a straight line. 1,602 scheduled transit trips call within 300 m of the parcel on a weekday. Since 2012 the City has recorded 48 building permits and 12 development permits on the parcel, the largest a $15.2M office permit for alteration, applied for in 2024. It appears on the City’s Inventory of Evaluated Historic Resources as NOVA Building Complex.

LiDAR roof height157.2 m

Storey-equivalent (derived)40

Footprint3,043 m²

Parcel4,094 m²

Year built (roll)1979

Assessed 2026 (2 accts)$40.5M

Structures on parcel2

Nearest CTrain66 m

Civic address: 801 7 Ave SW, Calgary, AB
Community: Downtown Commercial Core (DNC)
City sub-property use: C101 Office × 2 · all Office sites
Land use district: CR20-C20/R20 — Commercial - Residential Core (Commercial - Core)
Height rank: #13 of 785 citywide · #11 of 111 in Downtown Commercial Core
Footprint to parcel: 74% of the parcel under LiDAR footprints
Parcel pieces: 1 titled piece · roll 067243402 and 1 more
Coordinates: 51.046508, -114.079301

Own or manage Nexen Building, Calgary?

Slav Loban and the Commercially × Real Broker team give Calgary commercial owners a confidential pricing opinion based on the public record shown on this page: assessment history, permits, land use and the surrounding market. It is a broker’s opinion of value, not a formal appraisal. You do not need to be ready to list to start the conversation.

Request a pricing opinion Tenant? Review your lease

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 →

157.2 m · 2,864 m² · 16.9 m · 179 m²

Context within 160 m. Grey footprints darken with height; lime is the Plus 15 network.

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: 8th Street SW, 66 m straight-line (route 201/202). Planned Green Line station 7 Avenue SW is 802 m away (Downtown Segment, per the City’s Green Line map).

Other office buildings near 8th Street SW Station →

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.

Cycling

The best-rated cycling facility within 400 m of the parcel is a protected lane (Cycle Track), 8 m away.

Winter access

The parcel fronts a Priority 1 snow and ice clearing route, 8 m from its edge. Priority 1 routes are cleared first after a snowfall.

Accessible crossing

The nearest accessible pedestrian signal is at 7 Avenue and 7 Street, 64 m from the parcel.

Straight-line tests against The City of Calgary Calgary Bikeways, Snow and Ice Clearing Priority Routes and Traffic Signals, retrieved 2026-09-24. Bikeways are ranked by the City's comfort level, where 1 is a protected lane and 4 a major street. Snow priority is a clearing order, not a clearing time. An accessible pedestrian signal gives audible and tactile crossing cues; a signal recorded as unknown is not counted as having none.

Transit service

Scheduled Calgary Transit service at the door, not only the distance to a platform.

1,602 scheduled transit trips call within 300 m of this parcel on a representative weekday, 239 of them between 07:00 and 09:00, across 20 routes and 17 stops. The closest stop is EB 8 Street SW Station (Free Fare Zone), 64 m away.

Service class	Trips on the service day
LRT	672
REGULAR	530
MAX	373
EXPRESS	27

Routes: 1 Bowness/Forest Lawn · 2 Mount Pleasant/Killarney 17 Av SW · 5 North Haven · 6 Killarney/26 Av SW · 7 Marda Loop · 13 Altadore · 22 Richmond Rd SW · 62 Hidden Valley · 64 MacEwan · 66 Lakeview · 109 Harvest Hills · 116 Coventry Hills · 117 McKenzie Towne Express · 131 East Bow Express · 142 Panorama · 151 New Brighton Express · 201 Red Line - Somerset - Bridlewood/Tuscany CTrain · 202 Blue Line - Saddletowne/69 Street CTrain · MG MAX Green North Pointe/ City Centre · MY MAX Yellow Woodpark/City Centre.

Calgary Transit Scheduling Data (GTFS), service day 2026-09-28 inside the 2026-09-15 to 2026-12-20 service period. A trip is counted once however many stops it calls at inside the radius. Schedules change each service period; this is the schedule, not observed service.

Parking

What the City’s own tariff record says about kerbside parking beside this parcel.

Paid on-street parking within 200 m

184 metered stalls across 31 City parking zones touching this walking radius, at $1.00 to $4.00 per hour depending on zone and time of day. Maximum stay 30 to 540 minutes. Tariff zones 4b, 4d, 6.

Enforced 0710-1520 MON-FRI, 0910-1750 SAT; 0710-1750 MON-FRI, 0910-1750 SAT; 0840-1520 MON-FRI; 0840-1520 MON-FRI, 0910-1750 SAT.

Closest zone

7 St SW, Fr 7 Av SW To 8 Av SW — 3 m from the parcel, 1 parallel stall, tariff zone 4d, 120-minute maximum.

When	Rate
Mon-Fri 7:00 AM to 9:00 AM	$2.75 per Hour
Mon-Fri 9:00 AM to 1:30 PM	$4.00 per Hour
Mon-Fri 1:30 PM to 3:30 PM	$3.75 per Hour
No Parking at this time	See Street Signs
Saturday: 9:00 AM to 6:00 PM	$1.00 per hour
Sunday/Holidays:	Free parking
Free parking to 7am Mon-Fri	See Signs /Parking Restrictions

The City of Calgary On-Street Parking Zones with Rates, retrieved 2026-09-24. Counts cover Active paid parking zones only: loading bays, taxi stands, accessible stalls and permit-only zones are excluded, and off-street parkades are not in this dataset. Tariffs and enforcement hours change; confirm on the sign.

Heritage inventory

The City of Calgary Inventory of Evaluated Historic Resources records the following on this parcel.

NOVA Building Complex (Nexen Building NOVA, An Alberta Corporation, Corporate Head Office Alberta Gas Trunk Line Head Office Building)

Construction year: 1979
Architect: Llewellyn Fredrick Valentine of J.H. Cook, Architects & Engineers
Style: Modern
Typology: Office Tower (south building) and Facilities (north building)
Development era: 1957 to 1982 (Modern)
Original use: Commerce
Planning theme: Business and Industry
Designation: Inventory listing only
Inventory class: CWHR · featured resource

The NOVA Building complex is valued as a symbol of NOVA's pivotal role in Alberta¿s gas development and growth. Through its development of one of the largest and most technically-advanced gas transmission systems in the world, and established as a publicly mandated company, NOVA was a major enabler of Alberta's vibrant natural gas and gas chemicals industries (Symbolic value, City-wide significance).

The NOVA Building complex is also valued for its association with Bob Blair, President and Chief Executive Officer of NOVA. Blair, a visionary entrepreneur, aggressively grew NOVA from its Alberta Gas Trunk Line Company roots into a diverse international player in gas transmission, gas marketing, petrochemicals and plastics, manufacturing and resource development. This building is a direct result of Blair's vision and optimism for gas development in the province (Person value, City-wide sig

Character-defining elements: Key elements that define the heritage character of the NOVA Building complex include, but is not limited to its: - location on adjacent corner lots at the intersection of 7th Street SW and 7th Avenue SW in the west end of Calgary's urban core; - siting set back from the street with wide public pathways, and rotated 45 degrees to the standard city grid; - landscaping features such as: semi-tropical plantings in the atrium; urban parkettes with mature winter garden plantings complementary to those of Century Gardens; - form, scale, and massing as expressed by its: non-symmetrical eccentric shape

Source: The City of Calgary Inventory of Evaluated Historic Resources, entry 728.

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: Nexen Building, Calgary
Description: building in Alberta, Canada
Stated height: 152 m (LiDAR roof 157.2 m)
Floors: 37
Opened: 1982
Style: modern architecture
Identifier: Wikidata Q7020873 (CC0)

Assessment history

2 separately assessed accounts sit on this parcel (office condominium units or split accounts). 2026 assessed values range $7.7M to $32.8M, median $20.3M, total $40.5M. 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 067243402 (highest-assessed account on the parcel) · Office

Series not charted. The City’s published values for this roll number change by more than half or double between years, which usually signals a re-numbered, split or partially assessed account rather than a market movement. The published figures are listed below without a trend claim.

Published values by roll year

Roll year	Assessed value	Change
2005	$103.3M	—
2006	$145.2M	40.6%
2007	$204.5M	40.8%
2008	$270.1M	32.1%
2009	$254.8M	-5.7%
2010	$228.7M	-10.2%
2011	$154.4M	-32.5%
2012	$172.7M	11.8%
2013	$255.6M	48.0%
2014	$244.7M	-4.3%
2015	$313.5M	28.1%
2016	$290.1M	-7.4%
2017	$248.6M	-14.3%
2018	$176.8M	-28.9%
2019	$75.7M	-57.2%
2020	$51.9M	-31.5%
2021	$47.7M	-8.1%
2022	$42.3M	-11.3%
2023	$38.0M	-10.2%
2024	$34.7M	-8.7%
2025	$34.8M	0.3%
2026	$32.8M	-5.9%

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 12 since 2012

Applied	Permit	Category · description	Status
2019-01-29	DP2019-0428	Change of Use - Permitted Use CHANGE OF USE: OFFICE (USE OF PUBLIC EASEMENT SPACE)	Cancelled
2018-08-09	DP2018-3785	Signs - Permitted Use NEW: SIGN - CLASS B (FASCIA SIGN)	Released Approval
2018-03-07	DP2018-0890	Change of Use - Permitted Use CHANGE OF USE: CONVENIENCE FOOD STORE	Released Approval
2017-10-03	DP2017-4507	Change of Use - Permitted Use CHANGE OF USE: OFFICE (USE OF PUBLIC EASEMENT SPACE - 5 YEARS)	Lapsed Approval
2017-10-03	DP2017-4510	Change of Use - Permitted Use CHANGE OF USE: TAKE OUT FOOD SERVICE	Released Approval
2017-09-13	DP2017-4194	Change of Use - Permitted Use CHANGE OF USE: TAKE OUT FOOD SERVICE	Released Approval
2017-09-07	DP2017-4094	Change of Use - Permitted Use CHANGE OF USE: TAKE OUT FOOD SERVICE	Released Approval
2017-09-05	DP2017-4060	Change of Use - Permitted Use CHANGE OF USE: TAKE OUT FOOD SERVICE	Released Approval

Recent building permits 48 since 2012 · 38 in the City’s office class

Applied	Permit	Class · work	Est. cost	Status
2026-04-10	BP2026-05648	3402 - Office · Alteration Interior Alteration	$2.2M	Issued Permit
2025-10-07	BP2025-19649	3402 - Office · Alteration Interior/exterior alterations	$678,325	Issued Permit
2025-08-18	BP2025-16044	3402 - Office · Alteration Interior Alterations	$1.9M	Issued Permit
2024-12-17	BP2024-26038	3402 - Office · Alteration Assembly Interior Alteration	$15.2M	Completed
2024-07-29	BP2024-15494	3402 - Office · Fire/ Security Alarm Fire Alarm Repair	—	Cancelled
2024-06-17	BP2024-12001	3402 - Office · Alteration Exterior Alteration	$25,000	Completed
2024-01-22	BP2024-01088	3402 - Office · Alteration 801 Seventh Reimagined	$5.6M	Completed
2024-01-12	BP2024-00636	3402 - Office · Alteration Interior Demolition of Lobby and Plus 15 Levels	$360,000	Completed

Declared estimated project cost across all 48 non-residential building permits on the parcel since 2012: $48.7M. Permit descriptions are the City’s records at retrieval; applicant and contractor names are not reproduced.

Inspections

What City inspectors recorded against the permits on this parcel.

152 inspection results are published against 34 of the 48 building permits on this parcel, from 2012-07-05 to 2025-11-26. The most recent occupancy inspection was accepted on 2018-07-06. 15 inspections used a life-safety checklist and 1 a barrier-free checklist.

What was inspected

Result of each visit

Outcome	Inspections
Acceptable Add Inspection	80
Acceptable	28
Acceptable with Conditions	26
Not Acceptable	18

Stage

Inspection type	Count
Progress	97
Final	30
Occupancy	23
Foundation	2

The 14 most recent inspection results

Date	Permit	Stage	Checklist	Outcome	Inspector note
2025-11-26	BP2024-26038	Final	All Directives	Acceptable	No deficiencies noted. No further building inspections required. File Closed.
2025-11-06	BP2024-26038	Final	All Directives	Acceptable Add Inspection	Inspections can be booked at inspections.calgary.ca - Partial occupancy GRANTED for L5,7,8,9 for 100 occupants maximum per floor. as per C-Schedules. Call for remaining areas when ready, provide updated documents at that time.
2025-05-27	BP2024-01088	Final	All Directives	Acceptable	No deficiencies noted. No further building inspections are required.
2025-02-06	BP2024-00636	Final	All Directives	Acceptable	No deficiencies noted. No further building inspections are required.
2024-08-19	BP2024-12001	Progress	All Directives	Acceptable	No deficiencies noted. No further building inspections are required.
2024-08-19	BP2024-12001	Final	All Directives	Acceptable	No deficiencies noted. No further building inspections are required.
2023-07-18	BP2023-03088	Final	Field Level Hazard Assessment (FLHA)	Acceptable	Field Level Hazard Assessment: - No unsafe conditions identified. Hard hat, Safety boots and vest worn.
2023-07-18	BP2023-03088	Final	General Inspection Observations	Acceptable	- Received the Fire Alarm Verification and confirmed that the electrical permit is closed. Closing building permit file.
2022-11-28	BP2017-01535	Final	General Inspection Observations	Not Acceptable	, met with Mark on site about moving forward with the permit. At this point there are washrooms completed from 4 - 17 but they obviously still have open plumbing permits. There is an outside discussion happening about a possible selling of the building so if this permit is to be closed, it will require the scope of wor
2020-11-05	BP2020-09540	Final	General	Acceptable	- Building permit completed.
2020-01-02	BP2017-13480	Progress	DIRECTIVES	Not Acceptable	BE ADVISED: To date your building permit is still active. The City Of Calgary safety codes officer (SCO) requires the noted documents in order to complete this permit. Obtain the required documents and email them to Please include the permit number in the email. Failure to comply may result in extra fines and fees.
2019-09-16	BP2017-01535	Final	DIRECTIVES	Not Acceptable	BE ADVISED: To date your building permit is still active. The City Of Calgary safety codes officer (SCO) requires the noted documents in order to complete this permit.
2019-06-13	BP2017-13480	Progress	DIRECTIVES	Acceptable Add Inspection	File complete upon receipt of documents - Documents to be emailed to in a timely manner.
2019-04-10	BP2017-01535	Final	DIRECTIVES	Acceptable Add Inspection	Received fire alarm verification. Documents uploaded to file.

An inspection result is a record of one visit, not a verdict on the building. 18 of these 152 results are recorded as Not Acceptable. In the City's process a Not Acceptable result is an ordinary step: the inspector lists what must change and the work is re-inspected, which is why the most common outcome across the record is Acceptable Add Inspection. Most results relate to a single tenant improvement rather than the whole building. Inspector notes are The City of Calgary's own text at retrieval, with contact details removed; applicant and contractor names are never read.

The City of Calgary Building Inspections Results, joined to building permits by permit number, retrieved 2026-09-24.

Occupiers and licensed businesses

The public record of who operates on the parcel, labelled by source.

Businesses licensed by the City on this parcel 4 as of 2026-09-24

Licensed business	Address	Licence type	Status	Licensed since
Caffe' A-Roma	801 7 Ave SW	Food Service - Premises (No Seating)	Licensed	2023
Onigiri Japan	801 7 Ave SW	Food Service - Premises (No Seating)	Licensed	2018
Peppino	801 7 Ave SW	Food Service - Premises (No Seating)	Licensed	2026
Pizza Please !	801 7 Ave SW	Food Service - Premises (No Seating)	Licensed	2023

Not a tenant roster. The City licenses specific business types (retail, food service, personal services, contractors, wholesalers, schools and similar). Most office occupiers such as professional firms need no municipal licence and do not appear here. Matched by civic address and by licence location inside the parcel; home-based licences are excluded.

No individuals are named. The City issues many personal-service licences to people trading under their own name. Suite numbers are never published, and where a licence reads as an individual rather than an organisation the name is withheld and only the licence category is shown. Names of sources this site does not use are omitted.

Nearby office buildings

The six nearest office building sites in the record, by straight-line distance between parcel centroids.

667 7 St SW18.2 m · built 1979 · Office · 2 accounts · Downtown Commercial Core · 81 m
816 7 Ave SW31 m · built 1965 · Office · Downtown Commercial Core · 84 m
815 8 Ave SW55.7 m · built 1981 · Office · Downtown Commercial Core · 89 m
840 7 Ave SW74 m · built 1977 · Office · Downtown Commercial Core · 98 m
734 7 Ave SW73.7 m · built 1982 · Office · Downtown Commercial Core · 111 m
801 6 Ave SW115.8 m · built 1982 · Office · Downtown Commercial Core · 125 m

Where this building sits in the record

Every collection this building belongs to, from the same public data shown above.

Downtown Commercial Core office buildings Southwest Calgary All Office sites Built in the 1970s Land use CR20-C20/R20 #13 tallest office roof in Calgary Plus 15 connected buildings Heritage office buildings Named office buildings Paid street parking Office buildings near CTrain Transit service ranking Construction record

Nexen Building, Calgary questions

Answers drawn from the record.

How tall is Nexen Building, Calgary?

The main structure on the parcel has a LiDAR roof height of 157.2 m in The City of Calgary’s 3D building data, a storey-equivalent of about 40 at 3.9 m per storey. Wikidata records an architectural height of 152 m. Wikidata records 37 floors.

When was Nexen Building, Calgary built?

The City’s assessment roll records 1979 as the year of construction. Wikidata records 1982 as the opening year. The heritage inventory records 1979.

What is the assessed value of Nexen Building, Calgary?

The City of Calgary assesses the 2 accounts on this parcel at $40.5M in total on the 2026 roll, 49th of 822 sites in this record. Assessed value is the City’s figure for property tax, not a sale price or an asking price.

What is Nexen Building, Calgary zoned?

The parcel is designated CR20-C20/R20, Commercial - Residential Core, under the City of Calgary Land Use Bylaw. Confirm the designation and any amendments with the City before relying on it.

Which CTrain station is closest to Nexen Building, Calgary?

8th Street SW Station, 66 m in a straight line from the parcel centroid.

Who is in Nexen Building, Calgary?

The City of Calgary business licence register lists 4 licensed businesses at this address or inside the parcel as of 2026-09-24, shown in the occupiers section. Most office occupiers such as professional firms do not need a municipal licence, so the register is not a tenant roster.

Has Nexen Building, Calgary been inspected?

The City publishes 152 inspection results against 34 permits here, between 2012-07-05 and 2025-11-26. 15 used a life-safety checklist such as fire separations, firestopping or emergency lighting. 1 used the barrier-free checklist. The most recent occupancy inspection was accepted on 2018-07-06. Each result records one visit and most relate to a single tenant improvement, so this is not a verdict on the building.

How good is transit at Nexen Building, Calgary?

1,602 scheduled transit trips call within 300 m of the parcel on a representative weekday, 239 of them in the morning peak, across 20 routes. The closest stop is EB 8 Street SW Station (Free Fare Zone), 64 m away. That is the published schedule for one service period, not observed service, and it counts each trip once however many stops it makes nearby.

Can staff cycle or get there in winter at Nexen Building, Calgary?

The best-rated cycling facility within 400 m is a protected lane, 8 m away. The parcel fronts a Priority 1 snow and ice clearing route. These are straight-line tests against City layers.

Where can visitors park at Nexen Building, Calgary?

The City of Calgary's tariff record shows 184 paid on-street stalls in 31 zones within 200 m of the parcel, at $1.00 to $4.00 per hour. The closest is 7 St SW, Fr 7 Av SW To 8 Av SW, 3 m away. Loading bays, taxi stands, accessible stalls and off-street parkades are not counted, and rates change, so confirm on the sign.

Is office space available at Nexen Building, Calgary?

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.

Open in 3D Downtown Commercial Core office buildings Calgary office space guide Downtown map Skyline Office lease cost guide Office tour checklist

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), Calgary Business Licenses, On-Street Parking Zones with Rates, Building Inspections Results, Residential Parking Zones, Snow and Ice Clearing Priority Routes, Traffic Signals, Calgary Bikeways — The City of Calgary, retrieved 2026-09-24. 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.

Start a search near Nexen Building, Calgary All Calgary office buildings