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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.
- Under What this zoning allows is a short summary of the City's zoning bylaw for this district: its purpose, the uses the bylaw lists as permitted or discretionary, and the key numbers (height, setbacks, site coverage, secondary suites). The caption names the bylaw, the section and the date we read it. It is a summary, not the bylaw: a Direct Control zone, an overlay or a site-specific condition can change the rules, so confirm with the City before relying on it.
- 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.
4816 20 Av NW, Calgary
An address in Montgomery, Calgary, zoned R-CG (Residential - Grade-Oriented Infill). 2 building permits are on file, most recently “Secondary Suite” (issued 14 November 2019). The City's 2026 assessed value is $656,000.
What this zoning allows
R-CG · Residential - Grade-Oriented Infill. Existing residential development and grade-oriented housing (rowhouse buildings, townhouses, duplex and semi-detached dwellings, cottage housing clusters), with secondary suites and backyard suites.
Permitted Contextual Single Detached Dwelling; Contextual Semi-detached Dwelling; Rowhouse Building (where it meets every rule of the district and section 347.3); Secondary Suite; Accessory Residential Building; Park; Protective and Emergency Service; Utilities
Discretionary Rowhouse Building (where it does not meet every rule); Townhouse; Backyard Suite; Duplex Dwelling; Semi-detached Dwelling; Single Detached Dwelling; Cottage Housing Cluster; Assisted Living; and 10 more
Maximum density 75 units per hectare. Height and parcel coverage lowered by Bylaw 9P2026 (in force 4 August 2026); no main residential building in the rear yard of a midblock parcel since Bylaw 25P2026 (5 August 2026). Also subject to the general rules for low density districts (Part 5, Division 1). Varies. Setbacks are minimums unless a maximum is stated.
Summary of the City of Calgary Land Use Bylaw 1P2007 (amended to 15 September 2026), sections 525 to 546.3, as read on 30 October 2026. A summary, not the bylaw: Direct Control, overlays and site-specific conditions can change these rules. Confirm with the City before relying on it.
Neighbourhood profile
From the 2021 Census, for the small area around this address that Statistics Canada calls a dissemination area (48060179, 677 people). Statistics Canada draws these areas; they are not the City's neighbourhoods.
Permit history
-
2019-11-14
Secondary Suite · $2,000
no contractor listed Closed -
2000-09-01
Deck · $2,320
no contractor listed Closed
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Recent permits in Montgomery
Garage · ALTA HOME2026-10-28
4 unit rowhouse + secondary suites · ATAL HOMES2026-10-01
2 storey, 4-unit rowhome + 4 SSs + garage · no contractor listed2026-09-28