45 Twenty Third St
45 Twenty Third St is in New Toronto. It's outside TRCA flood hazard areas and there are 5 planning applications nearby (two under review, one deferred, one under appeal after a refusal, one other).
Data as of Nov 8, 2026 · Every item lists its source
- 5 building permits in the last 5 years.
- Outside TRCA flood hazard areas.
- 5 planning applications within 250 m: two under review, one deferred, one under appeal after a refusal, one other.
03The building
5 building permits in the last 5 years, for 3 projects. For comparison, about 1 in 10 Toronto addresses had any permit in that time. Permits show work the City approved; they don't show work done without a permit.
It isn't listed or designated on the City's Heritage Register.
Permit history: 10 projects from 19 permits
- Fire Alarm · permit issued · issued Nov 25, 2025
Proposal for replacement of fire alarm control panel and remote annuciators · Permit 25 247298 - Interior Alterations · completed Oct 21, 2024
Proposal to relocate the existing ceiling I-beams to locations entered above the existing chlorine evaporators and existing sulphur dioxide evaporators in accordance with drawings and specifications. · Permit 22 114599 - Interior Alterations · inspection · issued Mar 30, 2022
Upgrades of Toronto Water facilities server/computer room and supporting infrastructure · 3 permits in this project (such as building, plumbing and heating) · Permit 21 244729 - Interior Alterations · inspection · issued Oct 26, 2016
Loading dock renovation of the Dry Chemical BuildingNew Water Heater Tank and Emergency Eye wash and shower stationModify vestibule at Gaseous Chemical BuildingExterior wall demolition and new… · 3 permits in this project (such as building, plumbing and heating) · Permit 16 212189 - Special Ventilation System · inspection · issued Mar 31, 2014
Installation of dust collector special ventilation system. · Permit 14 130486 - Building work · inspection · issued Aug 29, 2013
Construct (4) walls and a roof to accomodate access into below grade water resevoir. Reclad (4) exterior walls and upgrade roof membrane system for existing below grade surge tank building.*R L… · Permit 13 211221 - Interior Alterations · permit issued · issued Oct 24, 2012
Alteration to roof structure to support installation of ductwork for new humidifiers and fans. · 2 permits in this project (such as building, plumbing and heating) · Permit 12 250958 - Addition and plumbing · completed Oct 8, 2025
Installation of backflow preventers and additional piping.(Plumbing - Structural concrete repairs to existing tanks, walls and slabs, process upgrade to an existing R.L. Clark Water… · 3 permits in this project (such as building, plumbing and heating) · Permit 11 106068 - Interior renovation · inspection · issued May 17, 2010
Interior alterations to lab and replace doors on various floors · 3 permits in this project (such as building, plumbing and heating) · Permit 10 117458 - Backflow Prevention Devices (Water only) · completed Jun 8, 2026
Back Flow Preventers to Water Filtration Plant · Permit 03 115354
04Risks and environment
TRCA's maps show this address is outside the areas that could flood from rivers in a major storm (TRCA plans for a storm like Hurricane Hazel in 1954) and outside lake shoreline hazards. Basement flooding from overloaded sewers can still happen anywhere in the city.
In postal area M8V, 1 of 202 home tap-water samples (0.5%) tested above Ontario's limit for lead (10 micrograms per litre). Across Toronto, 2.0% of samples did, so M8V is lower than the city overall. Health Canada recommends a stricter limit of 5 micrograms per litre: 3 samples here (1.5%) were above it. These are voluntary tests, mostly from older homes, so they don't tell you about this house. Lead comes from old pipes and plumbing, not the City's treatment plants. If your home was built before the mid-1950s, you can get a free test kit by calling 311.
TRCA mapping is for screening, not site-specific decisions. Lead results are voluntary samples from homes in the postal area, not this address.
01What’s changing nearby
5 active planning applications within 250 m (about a 3-minute walk): two under review, one deferred, one under appeal after a refusal, one other. That's more than at most Toronto addresses (the typical address has 1).
- 13199 Lake Shore Blvd W · 151 m awaySite Plan: City review of the design and layout of a new building
City planners are reviewing it. Residents can comment before a decision is made.
INACTIVE Site Plan Control application to permit the proposed Humber Cultural Hub which is a phased institutional development as part of the Humber College Lakeshore Campus. The proposal includes the partial redevelopment of the existing…File 20 146806 WET 03 SA · submitted May 20, 2020 · City record - 214 Ramsgate Rd · 193 m awayCommittee of Adjustment · Minor variance: permission to bend a zoning rule, such as height, size or setbacks
The hearing was postponed. A new date hasn't been published yet.
To construct a one-storey west side addition.File A0286/26EYK · submitted Aug 31, 2026 - 315 Ramsgate Rd · 219 m awayCommittee of Adjustment · Consent (severance): permission to split a lot or change property lines
The Committee of Adjustment refused it on Nov 9, 2023. It has been appealed to the Toronto Local Appeal Body (TLAB), which will hold its own hearing and make the final decision.
To obtain consent to sever the property into two undersized residential lots.File B0011/23EYK · submitted Mar 30, 2023 - 475 Twenty Fifth St · 230 m awayCommittee of Adjustment · Minor variance: permission to bend a zoning rule, such as height, size or setbacks
The Committee of Adjustment approved it on Nov 23, 2017. It has been appealed to the Toronto Local Appeal Body (TLAB), which will hold its own hearing and make the final decision.
To construct a new detached dwelling with an attached garage.File A0497/17EYK · submitted Jun 2, 2017 - 545 Twenty Third St · 244 m awaySite Plan: City review of the design and layout of a new building
City planners are reviewing it. Residents can comment before a decision is made.
Proposed development of the Clark WTP Generator Building project is to design and construct a new generator system to be housed inside a new building on the Clark WTP property.File 23 103955 WET 03 SA · submitted Jan 16, 2023 · City record
1 home within 250 m is registered with the City as short-term rentals (stays of less than 28 days, like Airbnb). That's about typical for Toronto (the typical address has 2).
Development Applications; Committee of Adjustment Applications; Short Term Rentals Registration.
02City services
Next: November 11: garbage, green bin and yard waste. November 18: recycling and green bin. Green bin goes out every week; garbage and recycling alternate.
05Quick answers about 45 Twenty Third St
Is 45 Twenty Third St in a flood plain?
No. TRCA maps it outside river flood and lake shoreline hazard areas. Basement flooding from sewers can still happen anywhere. Source: TRCA Regulation mapping 2025.
What is being built near 45 Twenty Third St?
There are 5 active planning applications within 250 metres (two under review, one deferred, one under appeal after a refusal, one other). The closest is at 3199 Lake Shore Blvd W, 151 m away. Source: Development Applications; Committee of Adjustment Applications.
Has 45 Twenty Third St been renovated?
Yes. The City has 19 building permits on record, 5 in the last 5 years. Source: Building Permits.
Is 45 Twenty Third St a heritage property?
No. It isn't listed or designated on the City's Heritage Register. Source: Heritage Register.
When is garbage day at 45 Twenty Third St?
Collection is on Wednesdays. Green bin goes out every week; garbage and recycling alternate weeks. The next garbage pickup is Nov 11, 2026. Source: Solid Waste Collection Schedule.
Answers are generated from the data on this page and update when the data changes.
06From the archives
No archive photos have been located within 250 metres yet.
Photo locations are matched from each photo’s title against City street and address data, so some may be off. Report a wrong location