Zoning · Mississauga · Residential
RL zone, Mississauga: Residential Large Lot
Part 4, Section 4.2.1, Table 4.2.1 (RL column); exception regulations in Section 4.2.2, Table 4.2.2 of the City of Mississauga Zoning By-law 0225-2007, as amended by 0379-2009, 0190-2014, 0181-2018/LPAT Order 2019 February 15, 0111-2019/LPAT Order 2021 March 09, 0018-2021, 0182-2024, 0048-2025.
A low-density zone for single detached and semi-detached houses on larger lots, with room for up to two additional residential units or a new fourplex under the general residential rules.
Is a property in the RL zone? Enter its address and the lookup returns the zone and these standards, including any site-specific exception.
Check an addressWhat the RL zone permits
- Detached dwelling (Table 4.2.1 line 2.1; see also 4.1.1, 4.1.16 and 4.1.17)
- Semi-detached dwelling (Table 4.2.1 line 2.2; see also 4.1.1 and 4.1.17)
- Additional residential units: up to two attached ARUs, or one attached ARU plus one detached ARU, per lot (4.1.1.1, Table 4.1.1.1)
- New fourplex, subject to Table 4.1.23.1 (4.1.23.1)
- Attached garage (line 12.1, note 3; 4.1.12)
- Accessory buildings and structures (line 13.0, note 6; 4.1.2, Table 4.1.2.2)
Standards
| Requirement | By-law |
|---|---|
| Minimum lot area (interior lot) | 550 m²Interior lot: detached dwelling 550 m²; semi-detached 340 m² (line 3.1) |
| Minimum lot area (corner lot) | 720 m²Corner lot: detached dwelling 720 m²; semi-detached 400 m² (line 3.2) |
| Minimum lot width (interior lot) | 15 mInterior lot: detached dwelling 15.0 m; semi-detached 9.0 m (line 4.1) |
| Minimum lot width (corner lot) | 19.5 mCorner lot: detached dwelling 19.5 m; semi-detached 12.0 m (line 4.2) |
| Minimum front yard | 7.5 mInterior lot: detached dwelling 7.5 m, semi-detached 6.0 m; corner lot: 6.0 m for both (lines 6.1-6.2, note 2: see 4.1.7 and 4.1.8). Garage face setback equal to the front yard (line 6.3) |
| Minimum interior side yard | 1.2 mInterior lot, unattached side: detached dwelling 1.2 m, semi-detached 1.8 m; attached side 0.0 m; corner lot detached dwelling 1.2 m (lines 8.1-8.3, note 2: see 4.1.7 and 4.1.8) |
| Minimum exterior side yard | 6 m6.0 m (line 7.0, note 2: see 4.1.7 and 4.1.8). Garage face setback equal to the exterior side yard (line 7.1) |
| Minimum rear yard | 7.5 mInterior lot 7.5 m; corner lot: detached dwelling 3.0 m, semi-detached 7.5 m (lines 9.1-9.2, note 2: see 4.1.7 and 4.1.8) |
| Maximum building height | 10.7 mSloped roof, highest ridge 10.7 m (line 10.0); flat roof 7.5 m (line 11.0) |
| Maximum lot coverage | 35 % |
| Minimum landscaped open space | 40 %Minimum landscaped soft area in the yard containing the driveway: detached dwelling 40% of the front yard or exterior side yard (not of the lot); semi-detached n/a (line 12.4) |
Other provisions in this section
- Maximum dwelling unit depth 20.0 m (Table 4.2.1 line 14.0)
- Minimum parking spaces and maximum driveway width per Subsection 4.1.9 and Part 3 (lines 12.2-12.3, notes 4-5); maximum one driveway per lot (4.1.9.1.2)
- Attached garage permitted per Table 4.1.12.1: max 1 per lot; max floor area 75 m² (inside face of walls); counts toward the dwelling's 35% lot coverage; height per the zone's dwelling height; minimum area of attachment to dwelling above grade 5.0 m long by 2.0 m high
- Detached garage per Table 4.1.12.1 (4.1.12.2): max 1 per lot; max floor area 75 m²; max lot coverage 10% of lot area; max height 4.6 m sloped ridge / 3.0 m flat / eaves 3.0 m; not permitted between the front wall of the dwelling and the front lot line; rear-yard setbacks to interior side and rear lot lines 1.2 m where lot area >= 750 m², 0.61 m where lot area < 750 m²; 1.2 m from the dwelling on the same lot; exterior side and interior-side-yard setbacks per the zone
- Detached ARU (Table 4.1.1.14): one storey only on lots <= 750 m², one or two storeys on lots > 750 m²; located in rear yard (or rear yard and/or exterior side yard on RL corner lots); max floor area 55 m² on lots <= 550 m², otherwise 10% of lot area up to 100 m²; max height one storey 4.6 m sloped / 3.0 m flat, two storey 6.8 m sloped / 5.8 m flat; setbacks: interior side 0.6 m (one storey) / 1.8 m (two storey), rear 1.8 m, exterior side 2.5 m (one storey) / 4.5 m (two storey); see 4.1.8
- Attached ARU must comply with the RL zone regulations and Subsection 4.1.1 (Table 4.1.1.1 line 3.0)
- New fourplex (Table 4.1.23.1): min lot area 295 m² interior / 415 m² corner; min lot frontage 9.75 m interior / 13.5 m corner; min front yard 6.0 m; exterior side yard 4.5 m; interior side yard 1.2 m; rear yard 7.5 m; max dwelling unit depth 20.0 m; max height 10.6 m sloped ridge / 8.1 m flat; lot coverage per 4.1.23.3; parking and driveway per 4.1.9 and Part 3
- Roof top external heating and/or air conditioning equipment not permitted (4.1.6.2)
- Accessory buildings and structures per Table 4.1.2.2 (4.1.2.1)
- Where an RL exception zone specifies, Table 4.2.2 infill regulations apply: interior side yard for detached dwelling on interior lot 1.2 m where lot frontage < 18.0 m, 1.8 m where >= 18.0 m; minimum combined side yard width on interior lots with frontage >= 18.0 m: 20% of lot frontage (one storey) / 27% (more than one storey); maximum gross floor area - infill residential: detached 190 m² + 0.20 x lot area, semi-detached 150 m² + 0.20 x lot area; maximum garage projection beyond the front wall or exterior side wall of the first storey 2.5 m
- Site-specific exception zones RL-1 to RL-228 (including RL-84(1) and RL-84(2)) carry additional or modified regulations; see Section 4.2.2 and exception schedules
- All buildings must also comply with Parts 1 to 3 and Section 4.1 of the by-law
Source: Part 4, Section 4.2.1, Table 4.2.1 (RL column); exception regulations in Section 4.2.2, Table 4.2.2, By-law 0225-2007 (City of Mississauga), checked 2026-09-12. General provisions elsewhere in the by-law (parking, driveways, accessory buildings) also apply, and a numbered exception on the parcel can change any value here. Treat this as a pre-check, not a sign-off.
Other residential zones in Mississauga: R12, R13, R14, R16, RA1, RA2, RA3, RA4, RA5, RA6, RA7, RM10, RM11, RM12, RM3, RM4, RM5, RM6, RM8, RM9, RS