Help: This address page
What this page does
This page shows what the city's open data records for one address: the zoning and what it means, the neighbourhood, every building permit on file and, where the city publishes it, the assessed value. It also shows the property on the city's aerial photo or a drawn plan, a 2021 Census profile of the small area around it, and recent permits nearby. Free, no account. Owner names and sold prices are never shown; the assessed value is the city's estimate for property tax, not a sale price.
How to use it
- Read the top lines for the summary: zoning, neighbourhood, number of permits and assessed value.
- Use + and − on the plan to zoom in and out.
- Scroll to Permit history for every permit on the lot: what was done, when, by which company, the value and the status.
- Click a nearby permit to open its address, or This week's permit digest → for the whole city.
- Something looks wrong? Use the Tell us link at the bottom and we'll check it against the city's records.
320 4 Av SW, Calgary
An address in Downtown Commercial Core, Calgary, zoned CR20-C20/R20 (Commercial - Residential Core). 36 building permits are on file, most recently “Interior alterations” (issued 29 October 2026). The City's 2026 assessed value is $68,570,000.
Zoning
CR20-C20/R20 · Commercial - Residential Core
Neighbourhood
Downtown Commercial Core
Permits on file
36
Assessed value (2026)
$68,570,000
Owner names are not part of the City's open data and are never shown. Sold prices are not municipal open data and are not shown. Assessed value is the City's estimate for property tax, not a sale price.
Neighbourhood profile
From the 2021 Census, for the small area around this address that Statistics Canada calls a dissemination area (48060645, 1,027 people). Statistics Canada draws these areas; they are not the City's neighbourhoods.
People
1,027
Households
540
Median age
30.4
Median household income (2020)
$56,400
Own their home
10%
Calgary: 69%
Average household size
1.6
Under 15
7%
65 and over
4%
Income in the 2021 Census is for the year 2020. Statistics Canada rounds counts and does not publish some figures for very small areas.
Permit history
-
2026-10-29
Interior alterations · $50,000
no contractor listed Issued -
2026-06-04
Fire alarm modifications · $5,000
no contractor listed Closed -
2026-01-20
Fire alarm modifications · $2,800
no contractor listed Issued -
2024-08-07
Interior alteration · $1,700,000
LEADING EDGE DEVELOPMENTS Closed -
2023-09-22
Fire alarm alteration (Westen Hotel). · $3,500
no contractor listed Closed -
2023-07-20
Fire Alarm Upgrade · $1,000
no contractor listed Closed -
2020-07-20
Westin Hotel - Fire Alarm upgrade · $5,000
no contractor listed Closed -
2018-08-27
Interior Alterations · $160,000
no contractor listed Closed -
2018-07-24
No description · $4,500
no contractor listed Closed -
2017-11-16
The Westin Interior Alterations / +15 Level Security Doors · $3,500
no contractor listed Closed -
2014-06-06
repair of precast · $539,000
no contractor listed Closed -
2013-07-25
Parkade Repair · $1,110,867
BURTON GENERAL CONTRACTING Closed -
2013-06-11
Repair parkade and temporary shoring · $14,000
no contractor listed Closed -
2009-12-06
Fire Alarm Installation · $306,400
no contractor listed Closed -
2008-05-28
Interior Renovations Lower Level Meeting Rooms · $870,000
applicant withheld (individual) Closed -
2008-04-02
Outdoor patio · $725,000
KARSON BUILDERS Closed -
2007-08-31
Interior Alterations · $400,000
applicant withheld (individual) Closed -
2007-06-15
interior alterations & use confirmation · $3,500,000
no contractor listed Closed -
2007-04-29
New Interior Partitioning · $300,000
no contractor listed Closed -
2007-03-09
Interior alteration · $475,400
CALCON CONSTRUCTION Closed -
2007-01-12
Exterior Alterations · $400,000
no contractor listed Closed -
2006-10-23
Interior Alteration (Existing Tenant, Leasehold Improvement) · $960,000
no contractor listed Closed -
2006-08-31
Exterior Alteration · $400,000
no contractor listed Closed -
2006-08-25
Interior Alterations (Conference Room) · $75,000
no contractor listed Closed -
2006-08-21
Interior Demolition of Partitions · $80,000
no contractor listed Closed -
2006-08-04
Interior Alterations · $100,000
no contractor listed Closed -
2006-07-20
Main floor - business centre · $50,000
no contractor listed Closed -
2006-07-20
Interior Partition · $300,000
no contractor listed Closed -
2006-06-29
Interior Demolition Only · $40,000
no contractor listed Closed -
2004-07-15
Interior Alteration · $180,000
no contractor listed Closed -
2003-12-15
Exterior Alterations and Sign · $92,000
LIGNUM INTERIORS Closed -
2001-11-29
Interior Renovations/Upgrading · $1,715,284
PALCOR CONSTRUCTORS Closed -
2001-03-23
Interior Alterations to Existing Tenant · $106,500
PALCOR CONSTRUCTORS Closed -
2000-03-01
New ceiling & new man door inside parkade · $20,000
MIKE MAURICE ASSOCIATES INC Closed -
2000-02-07
Int. Alt. for Retail Shop · $50,000
MIKE MAURICE ASSOCIATES INC Closed -
1999-07-14
Int. alt. to existing ballroom (2nd floor) · $250,000
no contractor listed Closed
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Recent permits in Downtown Commercial Core
850 2 St SW
Fire alarm repair · WESTERN ELECTRICAL MANAGEMENT2026-10-29
Fire alarm repair · WESTERN ELECTRICAL MANAGEMENT2026-10-29
435 4 Av SW
Parkade Repairs · no contractor listed2026-10-29
Parkade Repairs · no contractor listed2026-10-29
401 9 Av SW
Exterior Alterations (main floor concrete plaza) · no contractor listed2026-10-28
Exterior Alterations (main floor concrete plaza) · no contractor listed2026-10-28
Something wrong on this page? Tell us and we'll check it against the City's records.