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20 Duncan St
City of Toronto
Before you make an offer
Here’s what the public record shows about this property.
Buying a home is one of the biggest financial decisions most people make — and some of this is easiest to check before you commit. Every line below is a fact from the City’s open data, not our opinion.
- Has this property been altered?
- 28 building permits on record since 2002, most recently Jul 2, 2026. View building permit timeline
- Is work happening right now?
- 3 permits in active inspection on this property.
- What’s the zoning here? Not an official zoning verification. CanPermits maps this from the city’s published open zoning data — confirm the zoning with the municipality or a planner.
- CRE (x74) · as of Feb 20, 2026
- What could change around it?
- 36 active development records within 250 m of this address. View nearby development
Each line is a fact from the City’s open record. Open the full report for the complete timeline, every nearby project, and the assessment detail.
Agents and sellers already check these records. Buyers usually haven’t.
Sources we check for every address (25 data sources)
- Building permits
- Zoning by-law designation
- Property boundaries (parcel)
- Planning & environmental constraints
- Flood plain & conservation regulation (TRCA)
- Heritage Register status
- Building footprint & massing
- Nearest fire station
- Nearest TTC transit stop
- Nearest park & green space
- Street-tree density
- Building violations & orders
- Property standards orders (ML&S)
- Fire safety inspections
- Rental building condition rating
- Rent-reduction notices
- Business licences
- Short-term rental registrations
- Multi-tenant (rooming) house licences
- Sign permits
- Development applications
- Committee of Adjustment (zoning variances)
- Local Appeal Body appeals
- Food inspections (DineSafe)
- Liquor licences
Contains information licensed under the Open Government Licence – Toronto.
Contains information licensed under the Open Government Licence – Ontario.
Contains information made available under the Toronto and Region Conservation Authority (TRCA)'s Open Data Licence v 1.0
Source: Statistics Canada, Forward sortation areas, digital boundary file, 2021 Census. Reproduced and distributed on an "as is" basis with the permission of Statistics Canada.
Building permit timeline
Year-grouped permit history. Permits collapse under each year.
View full permit history
Building permit timeline
Year-grouped permit history. Permits collapse under each year.
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2026
4 filings · most recent July 2026View permits (4) Hide permits
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2018
4 filingsView permits (4) Hide permits
-
2017
1 filingView permits (1) Hide permits
-
2016
2 filingsView permits (2) Hide permits
-
2014
3 filingsView permits (3) Hide permits
View 6 earlier years Hide earlier years
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2013
3 filingsView permits (3) Hide permits
-
2012
2 filingsView permits (2) Hide permits
-
2011
3 filingsView permits (3) Hide permits
-
2008
1 filingView permits (1) Hide permits
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2003
1 filingView permits (1) Hide permits
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2002
1 filingView permits (1) Hide permits
Nearby Development
Within 250 mActive and recent development within 250 m of this address.
38 locations shown
-
1
32 m
2 addresses at this point
Scheduled Construction ×2 -
2
34 m
19 Duncan St
New Build Renovation ×3 -
3
34 m
19 Duncan St
Committee of Adjustment -
4
58 m
263 Adelaide St W
Committee of Adjustment -
5
59 m
263 Adelaide St W
Renovation Demolition -
6
68 m
[27.40 m W] DUNCAN ST / From: [25 m N] ADELAIDE ST W / To: NELSON ST (TO)
Scheduled Construction -
7
71 m
11 Ed Mirvish Way
Committee of Adjustment -
8
80 m
26 Duncan St
Renovation -
9
84 m
266 King St W
Renovation -
10
98 m
276 King St W
Zoning Changes -
11
100 m
NELSON ST (TO) / From: DUNCAN ST / To: JOHN ST
Scheduled Construction -
12
101 m
DUNCAN ST / From: NELSON ST (TO) / To: RICHMOND ST W
Scheduled Construction -
13
140 m
225 Richmond St W
Renovation -
14
147 m
2 addresses at this point
Renovation ×34 -
15
157 m
200 Adelaide St W
Renovation -
16
160 m
120 Pearl St
Renovation -
17
163 m
229 Richmond St W
Zoning Changes -
18
164 m
100 Simcoe St
Committee of Adjustment -
19
167 m
292 Adelaide St W
Renovation -
20
168 m
135 John St
New Build -
21
172 m
229 Richmond St W
Renovation ×3 -
22
172 m
126 John St
Renovation -
23
183 m
116 Simcoe St
Renovation -
24
195 m
350 King St W
Renovation -
25
196 m
55 John St
Development Permits -
26
204 m
55 John St
Renovation ×6 -
27
215 m
299 King St W
Renovation ×2 -
28
215 m
230 Richmond St W
Renovation -
29
236 m
8 Mercer St
Renovation ×3 -
30
240 m
20 Widmer St
Renovation -
31
241 m
18 Widmer St
Renovation -
32
242 m
16 Widmer St
Renovation -
33
242 m
312 Adelaide St W
Renovation ×4 -
34
243 m
14 Widmer St
Renovation -
35
243 m
180 University Ave
Renovation -
36
244 m
12 Widmer St
Renovation -
37
245 m
10 Widmer St
Renovation -
38
247 m
10 Mercer St
Renovation
New Build
Renovation
Demolition
Development Permits
Committee of Adjustment
Zoning Changes
Scheduled Construction
Development activity detected within 250 m, from the City of Toronto's open data. Each pin is a City-geocoded point (which may hold more than one record/address); click for details. Contains information licensed under the Open Government Licence – Toronto.
Nearby active addresses
Direct next steps for exploration.
-
19 Duncan St
33m3 recent · 27 total
Office · 3 filings in the last 12 months, latest Sep 2025
-
263 Adelaide St W
60m3 recent · 7 total
3 filings in the last 12 months, latest Nov 2025
-
14 Duncan St
30m1 recent · 45 total
Office · 1 filing in the last 12 months, latest Dec 2025
-
26 Duncan St
79m1 recent · 19 total
Office · 1 filing in the last 12 months, latest Apr 2026
-
266 King St W
85m1 recent · 11 total
Office · 1 filing in the last 12 months, latest May 2026
20 Duncan St in Toronto has 28 building permits on record dating back to 2002, most recently on July 2, 2026.