Toronto address · Ward 10, Spadina-Fort York
5 Mariner Ter
The City of Toronto has 8 building permits since 2017 (5 still open) 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.
- Not started
Addition or alteration · Interior alterations
Proposal to construct a new storage room within the P1 level garage area
Applied Sep 4, 2026 · Permit 26 232893 BLD
- Closed
Addition or alteration · Interior alterations
Interior renovation and redesign to unit 2003 (100 m2)
Applied Nov 28, 2023 · issued Jan 26, 2024 · completed Oct 2, 2025 · Permit 23 230415 BLD
- Permit issued
Fire and security upgrade · Fire alarm
Reprogramming of networked fire alarm system to interconnected fire alarm systems serving each condo board.
Applied Nov 15, 2022 · issued Apr 17, 2023 · Permit 22 229478 FSU
- Closed
Fire and security upgrade · Sprinklers
Proposal to remove pre-action system and two heads inside of the P1 Electrical Room. Pipe two heads into the Electrical supplied from the P1 Dry Sprinkler System in the existing Apartment Building.
Applied Sep 22, 2020 · issued Dec 3, 2020 · completed Mar 23, 2021 · Permit 20 197071 FSU
- Inspections under way
Addition or alteration · Interior alterations
Proposal for interior alterations to the walk in closet and ensuite washroom in the existing condo unit.
Applied Apr 14, 2016 · issued Apr 29, 2016 · Permit 16 140672 BLD
- Closed
Heating and ventilation · Alter: Boiler/Furnace/AC replacement
Replace 2 heating boilers, 1 domestic hot water boiler, and add mixing valves to domestic hot water supply in existing residential condominium building.
Applied Feb 12, 2016 · issued Mar 21, 2016 · completed Aug 18, 2017 · Permit 16 116430 MSA
- Inspections under way
Heating and ventilation
HVAC - Construct dwelling building (338 units) and amenity building including swimming pool and recreation facilities. (TOWER D) - New Building
Applied Nov 2, 2004 · issued Jan 4, 2005 · Permit 03 131001 HVA
- Inspections under way
Multiple-use permit · New building
Construct dwelling building (338 units) and amenity building including swimming pool and recreation facilities. (TOWER D)
Applied May 8, 2003 · issued Jan 4, 2005 · 340 homes added · Permit 03 131001 BLD
Committee of Adjustment
No applications to the City's Committee of Adjustment for this address since 2017. That's where an owner asks for a minor variance (a small exception to the zoning by-law) or a consent to divide a lot.
What’s planned nearby
Development sites within 500 m
- Under review
49 storeys · Mixed use
170 m away · Rezoning · Under review · filed Oct 18, 2024
- Under review
49 storeys · Mixed use
170 m away · Site plan · Under review · filed Oct 18, 2024
- Under review
50 storeys · 905 homes · Residential
400 m away · Site plan · Under review · filed May 12, 2025
- Under review
Not stated in the file
430 m away · Subdivision · Under review · filed Nov 7, 2021
- Under review
72 storeys · 7,986 homes · Mixed use
430 m away · Rezoning · Under review · filed May 3, 2022
- Under review
70 storeys · 929 homes · Mixed use
450 m away · Rezoning · Under review · filed Oct 10, 2024
Neighbours’ Committee of Adjustment files within 250 m
350 Queens Quay W · Minor variance
To alter the development standards (as approved under Site Specific Zoning By-law 493-2024) for the 21-storey mixed-use building (located at the northwest corner of the lot, municipally known as 396 Queens Quay West) by increasing the height of the mechanical penthouse, reducing the width of 32 parking spaces, and reducing the indoor amenity space (which will be used for storage space for outdoor furniture).
170 m away · filed Apr 29, 2026 · Approved
350 Queens Quay W · Minor variance
To convert the existing commercial space (located on the first floor lobby, and second levels of the building, municipally known as 350 Queens Quay West) into a hotel use, and to expand the permitted hotel use areas (on the second level of the building, municipally known as 390 Queens Quay West). Also, to alter the existing building municipally known as 396 Queens Quay West, by constructing a seventh level shaft on the roof area.
170 m away · filed Jan 20, 2025 · 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.