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CanPermits · property records report · canpermits.com/address/12-mayfield-ave-toronto

12 Mayfield Ave

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?
5 building permits on record since 2019, most recently Nov 22, 2019.
View building permit timeline
What’s the zoning here?
R (f7.5; u4; d0.6) (x798) · 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.

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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.

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12 Mayfield Ave

What you’ll get instantly

  • Full permit history & documents
  • Inspections, orders & violations
  • Zoning, bylaws & exceptions
  • Business licences & past uses
  • Flood, heritage & constraints
  • Excel export

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A presentation of public open-data records, compiled by CanPermits — not an official or certified record, and not affiliated with or endorsed by the City of Toronto.

More — disclaimers & data notice

It draws on the same City open data the municipality publishes, but does not carry the City's certification or legal standing. For an authoritative record — or any legally-binding transaction — order the City of Toronto's official Property Information Report. Not legal, title, or professional advice. Records reflect the most recent data we have ingested and may lag the City's live system.

City open-data records ingested through Jul 5, 2026. Individual sources refresh on their own schedule and may lag the City's live system.

See a personal detail that shouldn’t appear here? Email [email protected] and we’ll remove it.

Building permit timeline

Year-grouped permit history. Permits collapse under each year.

View full permit history
2019

  1. 2019

    5 filings
    View permits (5)

    1. Nov 22, 2019

      Drain - Proposed underpinning and interior alterations to existing two-storey...

    2. Nov 22, 2019

      Plumbing - Proposed underpinning and interior alterations to existing two-sto...

    3. Nov 8, 2019

      HVAC - Proposed underpinning and interior alterations to existing two-storey...

    4. Aug 22, 2019

      Back Water Valve (Sewer only)

    5. Aug 12, 2019

      Proposed underpinning and interior alterations to existing two-storey semi-de... $250K

Nearby Development

Within 250 m

Active and recent development within 250 m of this address.

46 locations shown

  • 1

    100 Durie St

    Renovation
    41 m
  • 2

    86 Durie St

    Committee of Adjustment
    46 m
  • 3

    2 addresses at this point

    Scheduled Construction ×2
    46 m
  • 4

    86 Durie St

    Renovation ×3
    49 m
  • 5

    DURIE ST / From: DEFOREST RD / To: MAYFIELD AVE

    Scheduled Construction
    50 m
  • 6

    13 Mayfield Ave

    Renovation
    52 m
  • 7

    97 Durie St

    Renovation
    57 m
  • 8

    103 Durie St

    New Build
    60 m
  • 9

    28 Mayfield Ave

    Renovation
    70 m
  • 10

    36 Mayfield Ave

    Renovation
    100 m
  • 11

    22 Ostend Ave

    Renovation
    104 m
  • 12

    26 Ostend Ave

    Renovation
    118 m
  • 13

    DURIE ST / From: MORNINGSIDE AVE (TO) / To: DEFOREST RD

    Scheduled Construction
    120 m
  • 14

    2279 Bloor St W

    Zoning Changes
    136 m
  • 15

    2277 Bloor St W

    Zoning Changes
    136 m
  • 16

    83 Deforest Rd

    Renovation
    137 m
  • 17

    2271 Bloor St W

    Committee of Adjustment
    137 m
  • 18

    2273 Bloor St W

    Zoning Changes
    138 m
  • 19

    2271 Bloor St W

    Committee of Adjustment
    139 m
  • 20

    2273 Bloor St W

    Zoning Changes
    142 m
  • 21

    46 Deforest Rd

    Renovation
    146 m
  • 22

    91 Deforest Rd

    Committee of Adjustment
    148 m
  • 23

    2295 Bloor St W

    Renovation
    149 m
  • 24

    91 Deforest Rd

    Renovation ×2
    149 m
  • 25

    44 Deforest Rd

    Renovation
    151 m
  • 26

    344 Windermere Ave

    Renovation
    171 m
  • 27

    2315 Bloor St W

    Renovation
    172 m
  • 28

    40 Deforest Rd

    Renovation
    172 m
  • 29

    90 Lavinia Ave

    Renovation
    173 m
  • 30

    2266 Bloor St W

    Renovation
    182 m
  • 31

    70 Beresford Ave

    Renovation
    184 m
  • 32

    114 Runnymede Rd

    Renovation
    192 m
  • 33

    45 Deforest Rd

    Committee of Adjustment
    197 m
  • 34

    64 Beresford Ave

    Renovation
    205 m
  • 35

    60 Mayfield Ave

    Renovation
    208 m
  • 36

    60 Mayfield Ave

    Committee of Adjustment
    210 m
  • 37

    2223 Bloor St W

    Renovation
    214 m
  • 38

    2322 Bloor St W

    Renovation
    215 m
  • 39

    2237 Bloor St W

    Renovation
    219 m
  • 40

    302 Windermere Ave

    Renovation
    222 m
  • 41

    105 Runnymede Rd

    Renovation
    225 m
  • 42

    301 Windermere Ave

    Renovation
    226 m
  • 43

    50 Durie St

    Committee of Adjustment
    228 m
  • 44

    142 Deforest Rd

    Renovation
    231 m
  • 45

    298 Windermere Ave

    Renovation
    232 m
  • 46

    2334 Bloor St W

    Renovation
    244 m
1

New Build

34

Renovation

7

Committee of Adjustment

4

Zoning Changes

4

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.

12 Mayfield Ave in Toronto has 5 building permits on record dating back to 2019, most recently on November 22, 2019.