Allowed suite size and placement are computed from Toronto accessory-suite controls, including height, suite separation, side-yard access, and lot coverage.
The path cards below keep the as-of-right suite visible first, then show where a Committee of Adjustment route may be relevant if more height, coverage, or placement flexibility is needed.
Ready to applyRecommended
17m²
2-4 weeksBuilding PermitLowest risk
Recommended Height
4m
Computed from footprint
Suite Footprint
17m²
After rear, side, and separation controls
Recommended Storeys
1
Garden suite path
Permitted
By right
Under RS zoning
Property basis
Your lot, resolved.
The property-level facts this feasibility builds on — the resolved zoning rules, density, lot benchmarks, and public-data overlays for this address. Every route in this report is screened against these.
Permitted density used
100%
The existing building uses about 100% of the floor area this lot's FSI permits.
Key rules resolved for this lot
The resolved base-zone rules used to calculate the screening envelope, with their by-law references. Site-specific exceptions, survey conditions, or other applicable law may change the final design limits.
Max Building Length17.00m
Maximum building length for the RS zone.
By-law ref: 10.5.40.10(1)
Max Building Depth19.00m
Maximum building depth measured from the front main wall.
By-law ref: 10.5.40.20(1)
Front Setback6.00m
Established building-line setback matched to adjacent houses.
By-law ref: 10.5.40.60(1)
Rear Setback7.50m
Minimum rear-yard setback for the RS zone.
By-law ref: 10.5.40.70(1)
Side Setback0.90m
Minimum interior side-yard setback.
By-law ref: 10.5.40.50(1)
Things to check on this lot
Public-data overlays that may affect design, approvals, timing, or where you can build. These are screened at the property level — a listed overlay does not stop the project, but it should be confirmed before drawings or filing.
HeritageNo heritage issue found.
TreesA protected tree may affect where you can build.
RavineNo ravine issue found.
ConservationNo conservation issue found.
Floodplain / TRCA / OverlayNo TRCA issue found.
Other overlaysNo other major overlay issue found.
Protected Tree
A protected tree may affect where and how you can build.
01 / Buildable Envelope
As-of-right baseline
No material alternative envelope could be modeled from the saved route evidence, so only the compliant baseline is shown.
Visible baselineFastest route
Ready to apply~183 ft² buildable on this route
This is the compliant envelope to keep visible first, even when a variance path may unlock more value.
The saved “Get a minor exception” recommendation did not include a material, source-backed envelope target, so it is not presented as a separate route.
Typical timing: 2-4 weeksFirst step: Confirm zoning statistics against a current survey.
Ready to apply
This is the compliant envelope to keep visible first, even when a variance path may unlock more value.
Fastest route
Garden suite massing with accessory-suite controls applied
Envelope metrics
Suite GFA17 m²
Single-level suite estimateMax 60 m²
Recommended height4 m
Accessory suite control4 m low-height tier
Lot coverage including suite57.8%
Main house + suite footprintSee by-law
Rear yard setback of suite1.5 m
Rear lot lineMin 1.5 m
Side setback of suite1.5 m
Side lot lineSide yard control
Separation from main house5 m
Main house to suiteMin 4 m for low-height tier
Filing pathBuilding Permit
Approval riskLowest-risk fallback
-Confirm zoning statistics against a current survey.
-Prepare a compliant massing before optimizing for exceptions.
-Use the baseline to compare cost, timing, and project upside.
02 / Path Deep Dive
Suite programTotal suite area across all levels: 17 m²
17 m²Total suite areaStudio program across all suite levels
17 m²Main suite levelLiving, kitchen, bath
Suite floor breakdown
Suite level17 m²Living, kitchen, bath, bedroom
Nearby case studiesGarden and laneway suite precedents kept distinct
1063 Logan Ave
25 x 130 ft · R1 zoning · lane access
Garden suiteRetained + leased
Lot similarity to yours84% match
Same typologyStandard lot widthEast EndRental outcome
Construction of a two storey garden suite in rear yard.
Project timeline
Apr 2025
Building permit issued
Permit application filed for construction of a two storey garden suite in rear yard.
Apr 2026
Construction complete
1 year build. Construction and inspection completed. Standard Review.
May 2026
Leased at market rate
Listed and leased in 4 days at $2,600/mo.
Construction cost
$230K
Monthly rent
$2,600
$31,200/yr gross
What this suggests for your property
At current rental rates, a comparable suite on your lot could generate $2,400-$2,800/mo - similar to this project's outcome.
Total timeline from permit application to tenancy was 13 months.
Case study based on public permit records, CoA decisions, and reported rental data. Outcomes vary. This is not a financial guarantee.
Risks
Survey required - a current survey is needed before permit submission.
Zoning data - confirm against the latest Toronto zoning bylaw before filing.
Small Buildable FootprintThe screened footprint is 17 m² (179 ft²). That can work, but stairs, services, and storage will drive whether it feels like a real dwelling.
Height / Separation TierToronto garden-suite height depends on separation from the main house. A shorter separation usually keeps the suite closer to a one-storey or compact massing path.
Servicing And DrainageA backyard dwelling still needs water, sanitary, storm/drainage, electrical, and construction access coordination from the main house or street.
1 constraint layer need confirmation before relying on the approval path.
Next steps
1Confirm zoning statistics against a current survey.2-3 weeks
2Prepare a compliant massing before optimizing for exceptions.Confirm timing
3Use the baseline to compare cost, timing, and project upside.Contractor quotes
4Confirm Fire Access And Travel DistanceMeasure the clear route from the public street to the proposed suite entry. If it is over the prescriptive route or needs the 90 m option, price sprinkler/strobe/alarm or enhanced fire-protection requirements before design.On-site checkSource basis: City of Toronto Pre-Approved Garden and Laneway Suite Plans
03 / Costs & Value
What it costs, and what it returns.
Screened at ~183 ft², here is what a garden suite of this size typically costs to build and returns in today's market.
Construction cost
Garden suite (~183 ft²)$180K - $230K$400-600/ft² built; small suites carry fixed servicing costs
Typical Toronto all-in range$275K - $550K2026 builder guides, standard finishes
Backyard servicing premium+$7K - $25KLonger utility runs and rear-yard construction access
Market rent potential
Studio suite rent$1,900 - $2,400/moCitywide planning range - neighbourhood moves this materially
Gross annual income$23K - $29KBefore vacancy, tax, and operating costs
Value impact
Typical appraisal uplift~80-90% of build costReported Toronto suite uplifts of $150K-$320K, location dependent
Indicative Toronto 2026 planning ranges compiled from published builder cost guides, the Altus Canadian Cost Guide, and CMHC market rent data. This is not a quote or an appraisal - confirm with contractor pricing and a local appraiser before budgeting.
04 / Development Recommendation
Recommended next step.Turn this path into a permit scope.
The buildable footprint is under 20 m². A designer can assess whether a minor variance or revised layout could recover additional buildable area.
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LotMore provides preliminary zoning and development insights for informational purposes only. We do not guarantee accuracy or compliance with applicable by-laws, codes, or regulations. All use of this website is at your own risk. Users should consult a qualified professional before making any development or construction decisions.