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Severance is one of the most powerful tools available to Ontario property owners — and one of the least understood. This guide breaks down exactly what happens, who is involved, and what it costs.
Most people come to us after they have already made assumptions about what their property can do. They have spoken to a neighbour, skimmed a city website, or heard something at a real estate event. By the time they contact us, they have a number in mind and a plan half-formed. Sometimes those assumptions hold up. Often they do not.
A severance is the legal process of splitting one parcel of land into two or more separately titled parcels. In Ontario, this is handled through a Consent Application submitted to the Committee of Adjustment, or in some cases the local Land Division Committee. The result, when approved, is a new lot you can sell, finance, or build on independently. It is one of the most direct ways to increase the value of a property you already own.
But severance is not a simple administrative step. It involves zoning analysis, survey work, planning rationale, architectural drawings, municipal pre-consultation, and a formal public hearing. There are multiple consultants, real fees, and a sequence that matters. Getting the sequence wrong wastes time and money. Getting it right gives you a clear, defensible application that moves efficiently through the process.
"Most people lose money before they start — they assume what they can build instead of verifying it. Our job is to replace assumptions with a strategy grounded in what the municipality will actually approve."
Riddhi Vakharia, BCIN Designer & Principal, Inarch ConsultancyNot every large lot is severable, and not every severance produces the outcome the owner imagines. Whether a lot qualifies depends on zoning by-law minimums, existing lot configuration, servicing capacity, proximity to environmental features, and the planning history of the surrounding neighbourhood. The following are the situations where a severance is typically worth exploring:
Many owners assume that because their lot is large, it is automatically severable. Zoning minimums, lot coverage requirements, easements, tree by-law protections, TRCA regulation, and heritage overlays can all restrict what is physically possible — or require additional approvals before the severance can proceed. This is precisely why feasibility comes before any application work.
We divide every severance engagement into two distinct phases. This structure exists because the work at each stage is fundamentally different, and because committing to a full application before you have municipal feedback is one of the most common — and costly — mistakes owners make.
Before any application is filed, we complete a structured review of the property and prepare materials to bring to the municipality. This phase exists to confirm what is actually achievable, test the concept with city planning staff, and give you a clear picture of risk before any significant money is spent on applications or reports.
Phase 1 typically includes:
The output of Phase 1 is a written report and a set of preliminary plans you can use to make an informed decision about whether and how to proceed. You are not committed to an application at this stage.
Once we have municipal direction from Phase 1 and you have decided to move forward, we prepare and coordinate the complete submission package required by the Committee of Adjustment. Based on the Toronto Committee of Adjustment checklist, a complete consent application requires several distinct components — each of which must be prepared correctly and filed in the right format.
Phase 2 deliverables include:
We manage the full coordination across consultants, handle staff comment responses, and represent you at the Committee of Adjustment hearing. A complete, well-prepared application is the single biggest factor in a smooth approval process.
We start with a free feasibility consultation. Before you spend a dollar on consultants or application fees, we tell you what is likely achievable and what the path looks like.
Book Your Free ConsultationA severance is not a single-discipline engagement. Depending on site conditions, you will need several professionals working in a coordinated sequence. Inarch acts as prime consultant — we manage the team, control the schedule, and ensure every deliverable meets municipal standards before it is submitted. Here is who is typically involved:
We prepare the site plan, floor plans, elevations, site statistics, and feasibility concepts. We lead the pre-consultation meeting and coordinate the full submission package for Committee of Adjustment.
Required on every severance. The OLS prepares the Plan of Survey (existing boundaries) and the Draft Reference Plan (R-Plan) identifying severed and retained parts. These are mandatory submissions and cannot be substituted.
On more complex files — larger lots, heritage-adjacent properties, or applications requiring a full planning rationale — a registered planner prepares the justification report. On straightforward residential severances, Inarch prepares the planning rationale directly.
Required when By-law protected trees exist on the subject property or within 6 metres of the site (12 metres in ravine or natural heritage areas). The arborist prepares a tree inventory, protection plan, and impact assessment as part of the Urban Forestry submission.
Required in rural or semi-rural contexts where the new lot will rely on a private well or septic system. The hydrogeologist confirms that the site can support independent water and sewage services. We have managed this specifically on severances in Wellesley Township.
On urban infill severances, a civil engineer may be required to confirm servicing capacity for the new lot — specifically water, sanitary, and storm connections. This is often raised as a condition of approval rather than a pre-submission requirement, but it is worth identifying early.
Required to fulfill the conditions of approval after the Committee grants consent. The lawyer registers the new title, fulfills any dedications or easements, and confirms that all conditions have been met within the required timeframe. Consent lapses if conditions are not fulfilled on time.
If the subject property is on the Heritage Register, a heritage impact assessment is required before the application can proceed to a public hearing. This adds time and cost and must be identified early in Phase 1.
The total cost of a severance varies significantly depending on lot complexity, municipality, and the consultants required. Below is a realistic cost breakdown for a typical residential severance in Ontario. These figures represent professional fees only and do not include application fees, land transfer considerations, or construction costs.
These are professional fee ranges based on typical Ontario residential severance engagements. They do not include park levies, development charges, or education levies that may be imposed as conditions of approval. Some municipalities apply cash-in-lieu of parkland dedications at the time of consent, which can add $5,000 to $20,000+ depending on the jurisdiction and assessed land value. We identify these exposure items in Phase 1 so there are no surprises at approval.
We review the property address, zoning, lot dimensions, and your goals. We tell you whether a severance is worth pursuing and what the path looks like, at no charge.
We complete a full zoning and constraint review, prepare preliminary plans, and meet with city planning staff to discuss the proposal. You receive a written report with our findings and a recommendation on how to proceed.
We prepare the full submission package: architectural drawings, planning rationale, and all required forms. We coordinate the OLS for survey and R-Plan work, and manage any additional consultant requirements identified in Phase 1.
We submit the complete application, respond to any staff comments to keep the file on track, and represent you at the Committee of Adjustment public hearing. Only complete applications are scheduled for hearings, which is why submission quality matters.
After consent is granted, conditions must be fulfilled within the required timeframe or the approval lapses. We coordinate with the OLS, the city, and your real estate lawyer to ensure all conditions are cleared and the new title is registered correctly.
Inarch is not a drafting firm. We are a BCIN-certified design and planning consultancy with 15 years of experience across Ontario and internationally. Our background in urban planning means zoning and land strategy are core competencies — not services bolted onto drawing production. We have managed severances in Toronto, Waterloo Region, Chatham-Kent, Wellesley Township, and across municipalities with distinct planning frameworks.
What this means for you is that you get a single point of contact who understands the full picture: what can be built, what the municipality will approve, what the application requires, and who needs to be involved. We identify constraints before they become delays, and we manage the consultant team on your behalf so you are not coordinating between professionals who do not know your file.
Severance is not just about splitting a lot. It is about understanding what value is locked in the land and building a path to unlock it that the municipality will support. That is what we do at Inarch — and we start every engagement by making sure the fundamentals are right before any money moves.
Book a free feasibility consultation. We review your property, confirm what is achievable, and explain the process honestly — before you commit to anything.
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