thepermitmap

Street · 3800 of 8,567 by permit count

Building permits on Mossom Rd

The City of Toronto has 40 building permits on record for Mossom Rd, going back to 1991. Those permits created 5 homes and removed 3, a net change of +2. Declared construction value totals $2.1M. The most recent permit was issued Apr 16, 2026 at 23 Mossom Rd.

Permits on record
401991–2026
Declared construction value
$2.1Mas filed, not adjusted
Homes created
5dwelling units
Homes removed
3net +2

Permits issued per year

20042026 (part year)

Most common work

  • Building Permit Related(MS)9 · 23%
  • Building Permit Related(PS)9 · 23%
  • Back Water Valve (Sewer only)5 · 13%
  • New Building5 · 13%
  • Multiple Projects4 · 10%
  • Demolition3 · 8%
  • Underpinning2 · 5%
  • Backflow Prevention Devices (Water only)1 · 3%
  • Deck1 · 3%
  • Unknown1 · 3%

Structures worked on

  • SFD - Detached39 · 98%
  • Unknown1 · 3%

Most recent permits

Issued Work What was filed Value Status
Apr 16, 2026 Back Water Valve (Sewer only) Installation of a Backwater valve Closed
Jun 23, 2025 Back Water Valve (Sewer only) To install a back water valve to existing dwelling Closed
Sep 28, 2023 Building Permit Related(MS) HVAC - Basement in-floor radiant heating. Underpinning in basement Closed
Aug 29, 2023 Multiple Projects Proposal to alter the existing two-and-one-half-storey detached dwelling by constructing a two-storey rear addition, a rear ground floor deck, and a rear second storey bay window. Also, to install an in-ground swimming pool and to construct an ancillary structure (shed) in the rear yard, and to perm $500K Open
Aug 29, 2023 Building Permit Related(PS) Plumbing - Proposal to alter the existing two-and-one-half-storey detached dwelling by constructing a two-storey rear addition, a rear ground floor deck, and a rear second storey bay window. Also, to install an in-ground swimming pool and to construct an ancillary structure (shed) in the rear yard, Open
Aug 29, 2023 Building Permit Related(MS) HVAC - Proposal to alter the existing two-and-one-half-storey detached dwelling by constructing a two-storey rear addition, a rear ground floor deck, and a rear second storey bay window. Also, to install an in-ground swimming pool and to construct an ancillary structure (shed) in the rear yard, and Open
Aug 2, 2023 Back Water Valve (Sewer only) Installation a back water valve and sump pump Closed
Feb 2, 2023 Underpinning Underpinning in basement $50K Closed
Feb 26, 2019 Multiple Projects Proposal for interior alterations and a new deck at the rear of an existing SFD-detached dwelling. $10K Open
May 2, 2014 Building Permit Related(MS) HVAC - Underpinning a portion of the existing basement. Closed
Jan 29, 2014 Underpinning Revision #1: Extend underpinning to protion of the existing basement. Increase area of basement to be lowered and location of steps. Underpinning a portion of the existing basement. Closed
Jan 24, 2014 Back Water Valve (Sewer only) Install (1) inside backwater valve Closed
Jan 24, 2014 Building Permit Related(PS) Plumbing - Underpinning a portion of the existing basement. Closed
Jan 20, 2014 Back Water Valve (Sewer only) Installation of one full port main line back water valve for single family detached dwelling. Open
Jan 14, 2014 Deck REV. #1 - lower deck Proposal to extend existing rear yard deck. Closed
Aug 5, 2011 Building Permit Related(PS) Plumbing - Proposed construction of a (1) storey rear yard addition, interior alterations and underpin a portion of the existing basement footings to an existing (2) storey detached single family dwelling. Closed
Aug 5, 2011 Multiple Projects Proposed construction of a (1) storey rear yard addition, interior alterations and underpin a portion of the existing basement footings to an existing (2) storey detached single family dwelling. $40K Closed
Jun 17, 2011 Backflow Prevention Devices (Water only) Proposed installation of back water valve, domestic water service and sanitary line in basement of existing detached dwelling. $8K Closed
Oct 30, 2009 Building Permit Related(PS) Plumbing - Construct new 2 storey dwelling Closed
Oct 30, 2009 Building Permit Related(MS) HVAC - Construct new 2 storey dwelling Closed
Oct 30, 2009 New Building Construct new 2 storey dwelling $300K New build
Oct 30, 2009 Demolition Demolish existing dwelling Demolition
Oct 30, 2009 Building Permit Related(PS) Plumbing - Construct new single family detached Closed
Oct 30, 2009 Building Permit Related(MS) HVAC - Construct new single family detached Closed
Oct 30, 2009 New Building Construct new single family detached $300K New build
Oct 30, 2009 Demolition Demolish existing 2 storey dwelling Demolition
Oct 30, 2009 Building Permit Related(PS) Plumbing - Construct new 2 storey dwelling Closed
Oct 30, 2009 Building Permit Related(MS) HVAC - Construct new 2 storey dwelling Closed
Oct 30, 2009 New Building Construct new 2 storey dwelling $300K New build
Oct 30, 2009 Demolition Demolish existing 11/2 storey dwelling Demolition
Oct 30, 2009 Building Permit Related(PS) Plumbing - Construct new dwelling Closed
Oct 30, 2009 Building Permit Related(MS) HVAC - Construct new dwelling Closed
Oct 30, 2009 New Building Construct new dwelling $300K New build
Oct 30, 2009 Building Permit Related(PS) Plumbing - Construct new single family detached Closed
Oct 30, 2009 Building Permit Related(MS) HVAC - Construct new single family detached Closed
Oct 30, 2009 New Building Construct new single family detached $300K New build
Apr 28, 2005 Building Permit Related(MS) HVAC - Replacement of existing oil furnace with gas forced air unit and associated duct work for related Interior alterations- Multiple Projects Closed
Sep 8, 2004 Building Permit Related(PS) Plumbing - Interior alters and rear deck - Multiple Projects Closed
Sep 8, 2004 Multiple Projects Interior alterations and rear deck $20K Closed
Oct 28, 1991 Unknown INSTALL NEW FIXTURES IN BSMT.: 1 WASH BASIN, 1 BATH TUB, 1 WATER CLOSET, 1 WASH TUB. ALSO REPARI DRAINS 2 VENTED FLOOR DRAINS ALSO REPLACE WATER SERVICE FRON 1/2" TO 3/4" SEE PLANS $3K Closed

The 40 most recent of 40 permits on record. Figures come from the City’s active and cleared permit datasets, refreshed daily — what that covers, and what it misses.

Source
City of Toronto Open Data
Dataset
Building permits, active + cleared
Records
40
City refresh
2026-09-13 10:24
Page built
2026-09-13
Sheet
STR-777