Toronto address · Ward 9, Davenport
303 Margueretta St
The City of Toronto has 8 building permits since 2017 and 1 Committee of Adjustment file on record for this address.
Building permits
Every permit the City lists for this address since 2017, and any still open from before, newest first.
- Closed
Small residential project · Multiple projects
Rev 2: Revisions to permit # 21 129017 BLD 01 SR: revisions to basement plan.Proposal for multiple projects to an existing 3 storey detached dwelling. Scope of work includes interior alterations, relocate/enlarge openings, construct a new 3rd floor dormer, and convert from 3 to 2 units. See also 21 114277 ZZC.
Applied Jul 23, 2022 · issued Aug 9, 2022 · completed Sep 28, 2022 · Permit 21 129017 BLD (revision 02)
- Closed
Small residential project · Multiple projects
Rev 1: Revisions to permit # 21 129017 BLD 00 SR: revisions to East dormer and roof, and revisions to structure drawings.Proposal for multiple projects to an existing 3 storey detached dwelling. Scope of work includes interior alterations, relocate/enlarge openings, construct a new 3rd floor dormer, and convert from 3 to 2 units. See also 21 114277 ZZC.
Applied Jun 20, 2021 · issued Jul 2, 2021 · completed Sep 28, 2022 · Permit 21 129017 BLD (revision 01)
- Closed
Heating and ventilation
HVAC - Proposal for multiple projects to an existing 3 storey detached dwelling. Scope of work includes interior alterations, relocate/enlarge openings, construct a new 3rd floor dormer, and convert from 3 to 2 units. See also 21 114277 ZZC.
Applied May 14, 2021 · issued May 26, 2021 · completed Jul 12, 2022 · Permit 21 129017 HVA
- Closed
Plumbing
Plumbing - Proposal for multiple projects to an existing 3 storey detached dwelling. Scope of work includes interior alterations, relocate/enlarge openings, construct a new 3rd floor dormer, and convert from 3 to 2 units. See also 21 114277 ZZC.
Applied Mar 18, 2021 · issued Apr 1, 2021 · completed Jul 12, 2022 · Permit 21 129017 PLB
- Closed
Small residential project · Multiple projects
Proposal for multiple projects to an existing 3 storey detached dwelling. Scope of work includes interior alterations, relocate/enlarge openings, construct a new 3rd floor dormer, and convert from 3 to 2 units. See also 21 114277 ZZC.
Applied Mar 18, 2021 · issued Apr 1, 2021 · completed Sep 28, 2022 · 1 home removed · Permit 21 129017 BLD
- Cancelled
Drains and site services
Drain - Proposal for interior alterations to convert cold storage room in basement to new entry (5.5m2), underpinning (2.3m), and new basement walkout at front of existing three-unit detached dwelling. See Zoning Certificate file 18-140573, and C of A file A0617/18TEY.
Applied Apr 26, 2019 · completed May 10, 2019 · Permit 19 112883 DRN
- Closed
Small residential project · Multiple projects
Proposal for interior alterations to convert cold storage room in basement to new entry (5.5m2), underpinning (2.3m), and new basement walkout at front of existing three-unit detached dwelling. See Zoning Certificate file 18-140573, and C of A file A0617/18TEY.
Applied Feb 7, 2019 · issued Apr 24, 2019 · completed Feb 19, 2020 · Permit 19 112883 BLD
- Closed
Drains and site services
Drain - Interior alterations to basement, ground, second and third floor to convert existing SFD to 3 unit dwelling. c of a a0837/11 approved final and binding no conditions
Applied Sep 16, 2013 · issued Sep 17, 2013 · completed Feb 19, 2020 · Permit 12 139594 DRN
Committee of Adjustment
This address's applications to the City's Committee of Adjustment since 2017, and any still open. A minor variance asks for a small exception to the zoning by-law, such as a little more height or a smaller setback; a consent divides a lot or grants an easement.
- Closed
Minor variance · R addition
To alter the existing converted three-storey detached dwelling containing three dwelling units by constructing a front basement walkout.
Decision: Approved (hearing Oct 24, 2018)
Filed Jun 25, 2018 · File A0617/18TEY
What’s planned nearby
Development sites within 500 m
- Approved
1167-1175 Bloor Street West, 34-42 Brock Crescent and 90 Croatia Street
14 storeys · 52 homes · Mixed use
180 m away · Rezoning · Approved · filed Feb 9, 2026
- Under review
510-514 Lansdowne Avenue and 1293-1301 Bloor Street West
28 storeys · Mixed use
290 m away · Site plan · Under review · filed Aug 9, 2022
- Under review
1141 Bloor Street West, 90 Croatia Street and 980 Dufferin Street
22 storeys · 264 homes · Mixed use
330 m away · Site plan · Under review · filed Feb 27, 2026
- Under review
33 storeys · 634 homes · Mixed use
430 m away · Site plan · Under review · filed Aug 30, 2021
Neighbours’ Committee of Adjustment files within 250 m
1286 Bloor St W · Minor variance
To alter the existing three-storey mixed use building by constructing a rooftop mechanical penthouse with rooftop access and a rooftop access enclosure above the third storey with a partially covered rooftop terrace and a trellis. The ground floor and partial ground floor mezzanine level will contain a commercial unit (art gallery and event space). The second storey will contain a multi-function commercial space that supports StepStones for Youth's programming and the provides amenity space for building residents (counselling rooms, a gym, a break room, and an open-concept collaboration space…
220 m away · filed Sep 2, 2026 · Postponed
613 Lansdowne Ave · Minor variance
To convert the existing two-and-one-half-storey detached dwelling into a houseplex containing two residential dwelling units, with a new rear second storey deck with a landing and stairs and a rear basement walkout. Also, to convert the existing two-storey ancillary building (a one-car garage) in the rear yard into an art studio occupying the first and second storeys. There will be a total of two dwelling units on the lot.
210 m away · filed Apr 13, 2026 · Approved
1281 Bloor St W · Consent
To obtain consent for the technical severance of the property for the purpose of re-establishing two mixed-use lots which merged on title.
230 m away · filed Mar 4, 2026 · Approved
587 Lansdowne Ave · Minor variance
To alter the existing one-storey detached building (TTC traction power substation) by constructing a rear one-storey addition with a side (south) exterior platform and staircase to access this addition. Also, to replace the existing electrical transformers in the rear yard.
200 m away · filed Jun 13, 2025 · Approved
619 Lansdowne Ave · Minor variance
To alter the existing three-storey detached dwelling by constructing a rear three-storey addition. There will be a total of four residential dwelling units on this lot (three dwelling units currently exist). Also, to permit two tandem parking spaces in the rear yard, abutting the laneway.
200 m away · filed Jul 6, 2024 · Deferred
390 St Clarens Ave · Minor variance
To alter the existing two-storey detached dwelling by constructing a complete third storey addition, a rear two-storey addition with a first storey deck and a third storey deck, and a front second storey deck. This dwelling will have two residential dwelling units (duplex) on this lot.
150 m away · filed Apr 10, 2024 · Approved
90 Croatia St · Minor variance
To alter the development standards for Blocks C, D, E and F, containing Buildings C, D, E and F of the mixed-use redevelopment approved under Site Specific Zoning By-Law 700-2021 (OLT) to permit increases to the gross floor area, increases to the permitted height, to add additional elements to the list of permitted setback encroachments, increases to specific height projections, increases to the percentage of grade for loading access ramps, limiting reduction of amenity space area from overall gross floor area, and relief from the size and location of the private school and private day nurser…
160 m away · filed Mar 7, 2024 · Approved
451 St Clarens Ave · Minor variance
To legalize and to maintain the rear second storey addition, which was constructed without an authorized building permit. Also, to alter the existing three-storey detached dwelling by constructing a rear third storey addition, a front second storey deck, a rear second storey cantilevered deck with a staircase, and a rear third storey deck.
140 m away · filed Oct 6, 2023 · Approved
From the City of Toronto’s open data: building permits (active, and cleared since 2017), Committee of Adjustment applications and address points, this record updated Sep 29, 2026, and the development sites from its Development Applications data. Contains information licensed under the Open Government Licence – Toronto. Construction cost estimates and contractors’ names are left out on purpose, and nothing here names an owner.