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Chapter 10 Residential
10.20 Residential Detached Zone (RD)
| (1) | Application of This Section |
| The regulations in Section 10.20 apply to all lands, uses, buildings and structures in the RD zone.
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| (1) | Use - RD Zone |
| The following uses are permitted in the RD zone:
Dwelling Unit in a permitted residential building type in Clause 10.20.20.40.
Municipal Shelter
Park [ By-law: 545-2019 ]
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| (1) | Use with Conditions - RD Zone |
| The following uses are permitted in the RD zone if they comply with the specific conditions associated with the reference number(s) for each use in Clause 10.20.20.100:
Ambulance Depot (1)
Cogeneration Energy (2)
Community Centre (3)
Day Nursery (4)
Fire Hall (1)
Garden Suite (17)
Group Home (5)
Home Occupation (6)
Laneway Suite (16)
Library (3)
Place of Worship (8)
Police Station (1)
Private Home Daycare (9)
Public Utility (10, 11)
Renewable Energy (2)
Secondary Suite (12)
Seniors Community House (13)
Short-term Rental (15)
Transportation Use (14)
[By-law 1453-2017]
[By-law: 1210-2019] [ By-law: 101-2022 ]
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| (1) | Permitted Residential Building Types - RD Zone |
| In the RD zone, a dwelling unit is permitted in the following residential building types:
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| (1) | Ambulance Depot, Fire Hall or Police Station |
| In the RD zone, an ambulance depot, a fire hall or a police station must be on a lot that:
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| (A) | fronts on a major street on the Policy Areas Overlay Map; or
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| (B) | fronts on a street which intersects a major street on the Policy Areas Overlay Map, and is no more than 250 metres from that intersection.
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| (2) | Cogeneration Energy Production or Renewable Energy Production |
| In the RD zone, cogeneration energy production or renewable energy production must be in combination with another permitted use on the lot, and comply with all Municipal, Provincial and Federal by-laws, statutes and regulations.
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| (3) | Community Centre or Library |
| In the RD zone, a community centre or a library must:
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| (A) | be operated by, or on behalf of, the City of Toronto;
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| (B) | be on a lot with a lot area of 1500 square metres or less; and
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| (C) | have a front lot line or side lot line abutting:
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| (i) | a major street on the Policy Areas Overlay Map, or
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| (ii) | a street which intersects a major street on the Policy Areas Overlay Map, and the lot is located, in whole or in part, within 80.0 metres of that intersection.
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| (4) | Day Nursery |
| A day nursery in the RD zone must comply with the specific use regulations in Section 150.45.
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| (5) | Group Home |
| A group home in the RD zone must comply with the specific use regulations in Section 150.15.
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| (6) | Home Occupation |
| A home occupation in the RD zone must comply with the specific use regulations in Section 150.5.
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| (8) | Place of Worship |
| In the RD zone, a place of worship must:
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| (A) | comply with the specific use regulations in Section 150.50;
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| (B) | be on a lot with:
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| (i) | a front lot line or side lot line abutting a major street on the Policy Areas Overlay Map;
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| (ii) | a lot area of at least 2,000 square metres; and
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| (iii) | a lot frontage of at least 30 metres; and
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| (C) | be in a building with no more than 2,000 square metres of gross floor area; and
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| (D) | a lawfully existing place of worship is exempt from the requirements of regulation 10.20.20.100(8) (B) and (C).
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| (9) | Private Home Daycare |
| A children's play area for a private home daycare in the RD zone:
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| (A) | must be fenced; and
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| (B) | may not be located in the front yard or a side yard abutting a street.
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| (10) | Public Utility |
| In the RD zone, a public utility may not be:
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| (A) | a sewage treatment plant;
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| (B) | a water filtration plant; or
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| (C) | an above-ground water reservoir.
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| (11) | Public Utility |
| In the RD zone, a public utility must be enclosed by walls and comply with the permitted maximum lot coverage, required minimum building setbacks and permitted maximum height for a building in the RD zone if it is:
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| (A) | a hydro electrical transformer station; or [ By-law: OMB PL130592 February 7, 2017 ]
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| (B) | a natural gas regulator station.
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| (12) | Secondary Suite |
| A secondary suite in the RD zone must comply with the specific use regulations in Section 150.10.
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| (13) | Seniors Community House |
| A seniors community house in the RD zone must comply with the specific use regulations in Section 150.30.
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| (14) | Transportation Use |
| A building or structure on a lot in the RD zone and used as a transportation use must comply with all requirements for a building on that lot.
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| (15) | Short-term Rental |
| A short-term rental in the RD zone must comply with the specific use regulations in Section 150.13. [ By-law: 1453-2017 ]
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| (16) | Laneway Suite |
| A laneway suite in the RD zone must comply with the specific use regulations in Section 150.8. [ By-law: 1210-2019 ]
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| (17) | Garden Suite |
| A garden suite in the RD zone must comply with the specific use regulations in Section 150.7. [ By-law: 101-2022 ]
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| (1) | Minimum Lot Area |
| In the RD zone:
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| (A) | if a zone label includes the letter "a", on the Zoning By-law Map, the numerical value following the letter "a" is the required minimum lot area, in square metres; and
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| (B) | if the zone label does not include an "a" value on the Zoning By-law Map, the required minimum lot area, in square metres, is the required minimum lot frontage multiplied by 30 metres.
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| (1) | Minimum Lot Frontage |
| In the RD zone:
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| (A) | if a zone label includes the letter "f", as on the Zoning By-law Map, the numerical value following the letter "f" is the required minimum lot frontage, in metres; and
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| (B) | if the zone label does not include an "f" value on the Zoning By-law Map, the required minimum lot frontage is 12.0 metres.
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| (1) | Maximum Lot Coverage |
| In the RD zone:
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| (A) | if a lot in is in an area with a numerical value on the Lot Coverage Overlay Map, that numerical value is the permitted maximum lot coverage, as a percentage of the lot area; and
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| (B) | if a lot is not in an area with a numerical value on the Lot Coverage Overlay Map, no lot coverage applies.
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| (1) | Application of this Article |
| The regulations in Article 10.20.40 apply to buildings or structures in the RD zone, other than ancillary buildings or structures which are subject to Article 10.5.60.
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| (2) | Number of Residential Buildings on a Lot |
| A maximum of one residential building is permitted on a lot in the RD zone.
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| (3) | Building Orientation to a Street - Buildings with Dwelling Units |
| In the RD zone, a building, or an addition which is not attached above-ground to the original part of a building, is not permitted if:
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| (A) | it has dwelling units and is in the rear of another building or the original part of the same building; or
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| (B) | it is in front of a building, or the original part of the same building, with dwelling units, so as to produce the condition of a building with dwelling units in the rear of another building.
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| (1) | Maximum Height |
| The permitted maximum height for a building or structure on a lot in the RD zone is:
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| (A) | the numerical value, in metres, following the letters "HT" on the Height Overlay Map; or
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| (B) | if the lot is in an area with no numerical value following the letters "HT" on the Height Overlay Map, 10.0 metres.
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| (2) | Maximum Height of Specified Pairs of Main Walls |
| In the RD zone, the permitted maximum height of the exterior portion of main walls for a detached house is the higher of 7.0 metres above established grade or 2.5 metres less than the permitted maximum height in regulation 10.20.40.10(1), for either (A) or (B) below:
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| (A) | for no less than 60% of the total width of:
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| (i) | all front main walls; and
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| (ii) | all rear main walls; or
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| (B) | all side main walls:
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| (i) | for no less than 60% of the total width of the side main walls facing a side lot line that abuts a street; and
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| (ii) | for no less than 100% of the total width of the side main walls that do not face a side lot line that abuts a street.
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| (3) | Maximum Number of Storeys |
| The permitted maximum number of storeys in a building on a lot in the RD zone is:
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| (A) | the numerical value following the letters "ST" on the Height Overlay Map; and
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| (B) | if the lot is in an area with no numerical value following the letters "ST" on the Height Overlay Map, the number of storeys is not limited by this regulation.
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| (4) | Restrictions for a Detached House with a Flat or Shallow Roof |
| If a detached house in the RD zone has a roof with a slope of less than 1.0 vertical units for every 4.0 horizontal units, for more than 50% of the total horizontal roof area:
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| (A) | despite regulation10.20.40.10(1), the permitted maximum height of the building is 7.2 metres;
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| (B) | regulation 10.20.40.10(2) does not apply; and
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| (C) | despite regulation 10.20.40.10(3), the building may have no more than two storeys.
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| (5) | Exemption for Parapet on a Detached House with a Flat or Shallow Roof |
| A parapet on a detached house in the RD zone may exceed the permitted maximum height of a building in regulation 10.20.40.10(4) by a maximum of 0.3 metres.
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| (6) | Height of Main Pedestrian Entrance |
| In the RD zone, for a detached house, the elevation of the lowest point of a main pedestrian entrance through the front wall or a side main wall may be no higher than 1.2 metres above established grade. [ By-law: PL130592 Mar_2018 ]
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| (7) | Width of Dormers in a Roof Above a Second Storey or Higher |
| In the RD zone, on a detached house with two or more storeys, the exterior sides of a dormer are not main walls if the total width of dormers projecting from the surface of a roof does not occupy more than 40% of the total width of the building's main walls on the same front, rear or side as the dormers, measured at the level of the uppermost storey below the roof.
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| (8) | Exclusion of Certain Floor Area Within an Attic Space as a Storey |
| In the RD zone, where a floor area meets the conditions set out in regulation 10.5.40.40(1), this space is not a storey if it is used for housing or maintaining mechanical equipment for the building and the floor area does not exceed 20 square metres.
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| (1) | Alterations to the Roof of Lawfully Existing Buildings in an RD Zone |
| In addition to the requirements of regulation 10.5.40.11(3), if a lawfully existing building in the RD zone is a detached house, the altered roof may not have a slope less than 1.0 vertical units for every 4.0 horizontal units for more than 50% of the total horizontal roof area.
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| (1) | Maximum Building Length if Required Lot Frontage is in Specified Range |
| In the RD zone with a required minimum lot frontage of 18.0 metres or less, the permitted maximum building length for a detached house is 17.0 metres.
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| (2) | One Storey Extension to Building Length if Required Lot Frontage is in Specified Range |
| In the RD zone, despite regulation 10.20.40.20(1), on a lot with a required minimum lot frontage of more than 12.0 metres to 18.0 metres, a detached house may extend beyond the permitted maximum building length by a maximum of 2.0 metres, if the extended part:
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| (A) | has a maximum height of 5.0 metres and one storey;
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| (B) | is no wider than 50% of the width of the building at its widest point; and
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| (C) | is at least 3.0 metres from each side lot line.
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| (1) | Maximum Building Depth if Required Lot Frontage is in Specified Range |
| In the RD zone with a required minimum lot frontage of 18.0 metres or less, the rear main wall of a detached house, not including a one storey extension that complies with regulation 10.20.40.20(2), may be no more than 19.0 metres from the required front yard setback.
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| (1) | Floor Space Index |
| In the RD zone, the permitted maximum floor space index is:
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| (A) | the numerical value following the letter "d" in the zone label on the Zoning By-law Map; and
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| (B) | if the zone label on the Zoning By-law Map does not include a "d" value on the Zoning By-law Map, the floor space index is not limited by this regulation.
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| (1) | Platforms at or Above the Second Storey of a Detached House |
| In the RD zone, a platform such as a deck or balcony with access from the second storey or above of a detached house must comply with the following:
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| (A) | there may be no more than a total of four platforms, and no more than one on each of the front, rear and each side of the detached house; and
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| (B) | the maximum area of each platform is 4.0 square metres.
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| (2) | Interpretation of Platform Walls |
| In the RD zone, if an area is not subject to lot coverage, in addition to regulation 10.5.40.50(1) the exterior sides of a lawfully existing platform that was lawfully enclosed in compliance with the former City of Toronto By-law 438-86 are not main walls.
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| (1) | Minimum Front Yard Setback |
| If regulation 10.5.40.70(1) does not apply, the required minimum front yard setback in the RD zone is 6.0 metres.
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| (2) | Minimum Rear Yard Setback |
| The required minimum rear yard setback in the RD zone is the greater of:
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| (A) | 7.5 metres; or
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| (B) | 25% of the lot depth.
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| (3) | Minimum Side Yard Setback |
| The required minimum side yard setback in the RD zone is:
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| (A) | 0.6 metres if the required minimum lot frontage is less than 6.0 metres;
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| (B) | 0.9 metres if the required minimum lot frontage is 6.0 metres to less than 12.0 metres;
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| (C) | 1.2 metres if the required minimum lot frontage is 12.0 metres to less than 15.0 metres;
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| (D) | 1.5 metres if the required minimum lot frontage is 15.0 metres to less than 18.0 metres;
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| (E) | 1.8 metres if the required minimum lot frontage is 18.0 metres to less than 24.0 metres;
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| (F) | 2.4 metres if the required minimum lot frontage is 24.0 metres to less than 30.0 metres; and
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| (G) | 3.0 metres if the required minimum lot frontage is 30.0 metres or greater.
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| (4) | Shifting Minimum Side Yard if Required Lot Frontage is in Specified Range |
| Despite regulation 10.20.40.70(3), for a lot in the RD zone with a required minimum lot frontage of 12.0 metres to less than 18.0 metres, the required minimum side yard setback on one side of a detached house may be reduced by a maximum of 0.3 metres if the required minimum side yard setback on the other side of the detached house is increased by the same amount.
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| (5) | Larger Minimum Side Yard Beyond Specified Depth if Required Lot Frontage is Over 18.0 Metres |
| Despite regulation 10.20.40.70(3), for a lot in the RD zone with a required minimum lot frontage greater than 18.0 metres, the required minimum side yard setback is 7.5 metres for any portion of a building that is farther from the front lot line than the lesser of:
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| (A) | 17.0 metres from the front main wall of the building; or
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| (B) | 19.0 metres from the required front yard setback.
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| (6) | Minimum Side Yard Abutting a Street for Specified Corner Lots |
| Despite regulation 10.20.40.70(3) and (4), for a corner lot in the RD zone, the required minimum side yard setback from a side lot line abutting a street is 3.0 metres, if:
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| (A) | the required minimum lot frontage for the corner lot is 12.0 metres or more; and
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| (B) | there is an adjacent lot fronting on the street abutting the side lot line of the corner lot.
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