20 4e Sud Avenue, Montréal

A single-family home (1 storey), built in 1956, on a 802 m² lot. 1 building permit since 1990. Older than 64% of the buildings on 4e Sud Avenue. Assessed lower than 73% of the houses and plexes on 4e Sud Avenue.

Data as of October 29, 2026 · updated every week

Assessed, 2026 roll
$437,100
Welcome tax on that value
≈ $4,667
Dwellings
1
Built
1956
6 notes4 clear
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What stands out about 20 4e Sud Avenue

Compared with every address on the island of Montréal, from the assessment roll, Montréal open data and the STM timetable.

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What the records show for 20 4e Sud Avenue

Note

Built before 1970, not tested: the water service line may be lead

Free preview
What the record says
Built 1956, 1 dwelling. No City screening test is published for this address. The City considers buildings with fewer than 8 dwellings built before 1970 likely to have a lead service line.
What it means
Replacing the private part of a lead service line is the owner’s responsibility and is mandatory in Montréal.
What to do
Ask the seller whether the service line was tested or replaced, or call 311 to ask whether the City has tested it.

The full report explains every finding like this one.

Note

1 building permit since 1990

What it means and what to ask
Note

Assessed at $437,100, +3% on the previous roll

What it means and what to ask
Note

Value is mostly land

What it means and what to ask
Note

Short-term rentals: principal residence only, June 10 to September 10

What it means and what to ask
Note

The City plans work on the pipes under this street

What it means and what to ask
Clear

No notice of deterioration

Clear

No City right of first refusal

Clear

No heritage protection found

Clear

Not in a mapped flood zone

Part of a full report: what each record says, what it means and what to do

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Assessed value of 20 4e Sud Avenue

In the full report
2026-2028 roll$437,100
Previous roll$424,400
Roll in force in 2022$284,800

From $284,800 on the roll in force in 2022 to $437,100 on the current roll: +53%.

Welcome tax estimated with the City of Montréal’s 2026 brackets on the assessed value; the notary calculates it on the higher of the price and the adjusted value.

The building

UseResidential
Storeys1
Lot area802 m²
TypeDetached
Land use in the urban planResidential
Built area on the lot (City outlines, 2016)≈ 187 m²
Share of the lot under buildings≈ 23%
Frontage, cadastre and owner since

Permits for this address · 1 since 1990

Oct 2015 · Certificate of authorization

Street and trees

City trees in front2 · Norway Maple
BoroughPierrefonds-Roxboro
City plan for the pipes under the street (2023–2027)Water main: no work needed · sewer: immediate attention · storm sewer: to be studied
Water main breaks repaired within 35 m (1972–2017)None recorded

Metro and bus near 20 4e Sud Avenue

Gouin / 2e Avenue · 79, 206, 356, 382, 468179 m
Gouin / 2e Avenue · 79, 206, 356, 382, 468189 m
Gouin / 4e Avenue · 79, 206, 356, 382202 m
To downtown (McGill station) by metro and bus, weekday morning≈ 67 min

Public schools near 20 4e Sud Avenue

French-language public elementary schoolÉcole Lalande, 480 m
English-language public elementary schoolÉcole primaire Sunshine Academy, 1.7 km
French-language public secondary schoolÉcole de l'Altitude, 1.2 km
English-language public secondary schoolÉcole secondaire Pierrefonds, 3.5 km

The nearest school of each kind in a straight line, not the school of the address: each school service centre (French) and school board (English) sets its own territories, so ask it. English public schools require a certificate of eligibility under the Charter of the French language. Source: Ministère de l’Éducation du Québec.

Building activity nearby

Construction permits within 300 m, 2 years8
Demolition permits within 300 m, 2 years0

In Pierrefonds-Roxboro, the borough issued 694 construction permits and 20 demolition permits in the last two years. About the borough

Life around 20 4e Sud Avenue

City 311 requests within 150 m, last 12 months12 · streets, sidewalks and lights 9, snow clearing 2, pests 1
Ground-floor shops within 500 m62 · restaurants and cafés 6, grocery and daily shops 10, other shops 7, services 38, bars, entertainment and hotels 1
Empty storefronts within 500 m5%
Nearest food shopPâtisserie Ayda, 200 m
Playground240 m
Public poolPiscine Roxboro, 70 m
Outdoor skating rink630 m
Tennis or pickleball courts650 m
LibraryBibliothèque de Roxboro, 670 m

Ville de Montréal open data: 311 requests are counted around the address, never tied to one home; shops come from the City’s survey of ground-floor commercial premises; distances are in a straight line.

The neighbourhood in the 2021 census

People in this census area (2021)662
Median age41.6 (island of Montréal 39.6)
Median household income (2020)$76,500 (island of Montréal $66,500)
Households that own their home72% (island of Montréal 42%)
Moved here in the last five years21% (island of Montréal 44%)
Children under 1516% (island of Montréal 15%)
People 65 and over21% (island of Montréal 18%)
People who speak French and English65% (island of Montréal 60%)
People who speak French only10% (island of Montréal 25%)
Adults 25 to 64 with a bachelor’s degree or higher34% (island of Montréal 45%)
Workers who take transit to work21% (island of Montréal 26%)
Homes that are single-detached houses33% (island of Montréal 14%)
Homes in buildings of five storeys or more0% (island of Montréal 15%)
Homes built in 1960 or before43% (island of Montréal 35%)

Figures for the census dissemination area that contains the address (a few blocks, usually 400 to 700 people), with the whole city in brackets. Source: Statistics Canada, 2021 Census of Population.

Crime near 20 4e Sud Avenue

In the full report

In the full report: incidents reported to the SPVM within 300 m over the last 12 months, by type.

Questions about 20 4e Sud Avenue

What is 20 4e Sud Avenue assessed at?

$437,100 on the 2026-2027-2028 assessment roll. The previous roll had it at $424,400. More

How much is the welcome tax for 20 4e Sud Avenue?

About $4,667 on its assessed value of $437,100. The tax is calculated on the highest of the price paid, the value in the deed and the adjusted assessed value, so the real amount may be higher. More

How has the assessed value of 20 4e Sud Avenue changed?

From $284,800 on the roll in force in 2022 to $437,100 on the current roll: +53%. The previous roll had it at $424,400. More

When was 20 4e Sud Avenue built?

In 1956, according to the assessment roll.

How many dwellings does 20 4e Sud Avenue have?

1 dwelling, according to the assessment roll.

Is 20 4e Sud Avenue in a flood zone?

No. It is not in a flood zone mapped by the Quebec government. More

Does 20 4e Sud Avenue have a notice of deterioration?

No. The Ville de Montréal has registered no notice of deterioration on this building. More

Is 20 4e Sud Avenue a heritage building?

No. It is not listed or protected as heritage by the City. More

Can 20 4e Sud Avenue be rented short term (Airbnb)?

Only as the owner’s or tenant’s principal residence, from June 10 to September 10, 31 days at most, with a yearly City permit and a CITQ registration number. More

What building permits has 20 4e Sud Avenue had?

The City has issued 1 permit since 1990. The latest, from Oct 2015: ca- abattage d'arbre. More

How long does it take to get downtown from 20 4e Sud Avenue?

About 67 minutes by metro and bus on a weekday morning to McGill station, with the walk to the stop, according to the STM timetable.

Other addresses on 4e Sud Avenue

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Checked against Montréal open data and the Quebec assessment roll on October 29, 2026. Lot outlines come from the City’s assessment units and have no legal value; the certificate of location decides.