Legal Basements · Barrie

Legal Basements in Barrie

Legal basement apartments in Barrie, where a house in a residential zone can take up to three additional units and a basement unit uses one of them. We check headroom and exits on site, draw the entrance, the separation between the two homes and their heating, and file the set with the City of Barrie Building Services through APLI.

Building
designs
200+
Years of
practice
10
Trusted
partners
20+
Separate entrance stair down to a basement suite beside an enlarged window
Recent project
Vaughan · 1,100 sq ft
Municipality
Barrie, Ontario
Permit office
City of Barrie Building Services
From our office
Within an hour
Fig. 01 · Separate entrance stair down to a basement suite beside an enlarged windowRichmond Hill, ON

What’s included

Scope: what we take on, and what each part includes.

A legal unit is a list of code items, and the inspector checks each one. We design to that list, build to it, and book the inspections in the order the city wants them. In Barrie the package goes to the City of Barrie Building Services, and it is drawn to that department’s checklist.

  • Finished legal basement apartment in Vaughan

    The way in

    Separate entrance

    A new exterior door cut into the foundation, with the stairwell, guard and drainage designed so the opening does not weaken the wall.

    • Foundation opening design
    • Stairwell & drainage
    • Guards & lighting
    • Frost & waterproofing
  • Basement conversion with exposed steel beams

    What the inspector checks first

    Fire separation & egress

    Rated ceilings and walls between the units, interconnected smoke alarms, and bedroom windows or doors large enough to get out through.

    • Fire-rated assemblies
    • Egress windows
    • Interconnected alarms
    • Sound separation
  • Kitchenette in a legal basement unit

    The wet side

    Kitchen & bathroom

    Plumbing for a second kitchen and bathroom, tied into drains that were never meant for them, with venting and hot water sized for two units.

    • Kitchen & bath layouts
    • Drain & vent tie-ins
    • Hot water for two units
    • Bathroom ventilation
  • Basement suite with a kitchenette and a living area

    Through to occupancy

    Inspection scheduling

    The inspections the permit calls for, booked as each stage is ready, and the paperwork closed so the unit is legal on paper as well as in fact.

    • Framing & insulation inspections
    • Plumbing & electrical inspections
    • HVAC & final
    • Permit close-out

The package

When you need it, and what you get.

Find your situation below. If it’s there, this is the service, and the card underneath is everything you get from our one office.

You need this when

06 common situations

What you get

07

items in your package, all from one P.Eng and BCIN team.

Drawn & stamped in-house

  1. Site visitHeight, egress and entrance checked
  2. Permit drawingsLayout, fire separations, structure, HVAC
  3. Building permitFiled and followed to issue
  4. Entrance & fire assembliesFramed, insulated and fire-rated
  5. Plumbing, electrical, HVACInstalled and inspected
  6. Kitchen & bathroomAnd the finishes
  7. A legal unitPermit closed, ready to list and insure

How it runs

Process: 4 steps from first call to sign-off.

Four steps from a bare basement to a closed permit, with the inspections built into the schedule.

  1. Site visit & code check

    We measure the ceiling, look at the windows, the entrance options and the mechanical room, and tell you whether the basement can be made legal and what it will take.

  2. Design & permit

    Layout, separations, the structural opening and HVAC are drawn in one office and filed with the municipality. City comments are answered at no extra charge.

  3. Build

    Entrance, framing, rough-ins, insulation and rated assemblies go in, inspected at each stage.

  4. Finish & close out

    Kitchen, bathroom, flooring and doors, then the final inspection and the closed permit.

What we need to start

Send what you have. We fill in the rest on the first call.

Book a free call
  • Property address
  • Basement ceiling height, measured floor to joist
  • Photos of the basement, the mechanical room and the outside wall where an entrance could go
  • Any existing drawings or a previous permit
  • Whether the unit is for family or for rent

Case files

Our Projects: real permits, real builds, real value added.

Open any file for the scope, the disciplines involved, what we delivered and what the owner came away with.

Files
08
Municipalities
07

Two-storey garden suite framing under construction in a Toronto backyard
Interior framing

A compact two-storey suite in a Toronto backyard. Architectural and structural drawings, zoning review and a framing package that makes every square foot count.

Location
Toronto
Area
700 sq ft
Sector
Residential
Disciplines
Architectural · Structural

Delivered

  • Architectural drawings
  • Structural framing design
  • Zoning review
  • Building permit application

New living space on a lot the owners already had.

Start a project like this

Richmond Hill home exterior after a full-home interior renovation
Home exterior

Structural walls came out and rooms were added to open the plan. Beam and column design, permit drawings and renovation coordination through to final inspection.

Location
Richmond Hill
Area
2,700 sq ft
Sector
Residential
Disciplines
Structural · Architectural

Delivered

  • Load-bearing wall removal
  • Beam & column design
  • Permit drawings
  • Renovation coordination

An open layout where the load-bearing walls used to be.

Start a project like this

Finished legal basement apartment kitchen and living area in Vaughan
Basement kitchen

A code-compliant second unit with its own entrance, fire separations between the units, HVAC design and the full permit package.

Location
Vaughan
Area
1,100 sq ft
Sector
Residential
Disciplines
Architectural · Mechanical · Fire safety

Delivered

  • Separate entrance
  • Fire separations
  • HVAC design
  • Full permit package

A legal second unit that brings in rent and adds property value.

Start a project like this

Newly completed custom home exterior in Haldimand County
Finished bungalow

A new build taken from the client’s sketch to occupancy, with the architectural, structural and mechanical design done by one team.

Location
Haldimand County
Area
1,750 sq ft
Sector
Residential
Disciplines
Architectural · Structural · Mechanical

Delivered

  • Architectural design
  • Structural design
  • Mechanical design
  • Permit drawings

Built to the client’s own plan, with one team answering for every discipline.

Start a project like this

Completed two-storey garden suite with a double garage, Richmond Hill
Suite over garage

A two-storey garden suite laid out to get the most usable space from the footprint, designed and permitted as a rentable unit.

Location
Richmond Hill
Area
1,250 sq ft
Sector
Residential
Disciplines
Architectural · Structural

Delivered

  • Layout planning
  • Architectural drawings
  • Structural design
  • Permit application

Rental income and a higher property value.

Start a project like this

Kitchener plaza storefront converted from a dental office to a supermarket
Plaza storefront

A dental office converted into a supermarket. Interior renovation, a new plumbing system and fire separations upgraded to the Ontario Fire Code.

Location
Kitchener
Area
Dental → grocery
Sector
Commercial
Disciplines
Architectural · Plumbing · Fire safety

Delivered

  • Change-of-use permit
  • Interior renovation drawings
  • New plumbing design
  • Upgraded fire separations

A dental office reopened as a supermarket, compliant with the Ontario Fire Code.

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New covered porch addition under construction, London, Ontario
Porch framing

A custom covered porch that turns the front of the house into usable outdoor space. Addition design and structural drawings for the permit.

Location
London
Area
570 sq ft
Sector
Residential
Disciplines
Architectural · Structural

Delivered

  • Addition design
  • Structural drawings
  • Permit application

More usable outdoor space and added home value.

Start a project like this

Grading plan for a driveway extension and site alteration in Guelph
Grading plan

Site grading to manage drainage and prepare the land for a new driveway, drawn as a grading plan for the site alteration permit.

Location
Guelph
Area
11,700 sq ft
Sector
Site
Disciplines
Site engineering

Delivered

  • Grading plan
  • Drainage design
  • Driveway extension layout
  • Site alteration permit

Drainage handled and the land ready for a new driveway.

Start a project like this

The drawing set

Drawing Samples: sheets from real permit sets.

Framing schedules, wall assemblies, dimensions and a city review stamp, as issued. Client title blocks are trimmed off to protect the people we drew them for.

Sector
Residential
Discipline
Architectural · Structural
Location
London, ON
Scale
—

Drawing set

Sheets in this set

Sheet title

Existing basement plan

The existing house recorded before any design: beams, joists and bearing walls.

Drawing no.

2 of 5

Client reviews

  • Engineering

    Alexander is everything you could possibly hope for in a professional engineer: exceptionally knowledgeable, meticulous, honest, reliable … If you are looking for an engineer you can trust completely, Alexander is the person you want on your project.

    Karl Sarkadi

  • Legal Basement

    I used them to get a permit from the City of Barrie to legalize my basement apartment … they took care of all the drawings and dealt with the city's requirements so I didn't have to stress about it. … what could've been a huge headache turned out to be smooth and painless.

    Anatoly Dobrovinsky

  • Basement + Entrance

    We had an outstanding experience working with Alexander on the legalization of our basement apartment, including obtaining approvals for a separate entrance. … His expertise in dealing with permits, building code requirements, and municipal approvals gave us complete confidence throughout the project.

    Robert Grin

  • Triplex HVAC Design

    Fine Engineering helped us with the mechanical and HVAC design for our triplex project in Barrie. The design included a boiler system for the 3 units and radiant floor heating … I’m very happy with the final result, it’s a really comfortable system during winter seasons.

    Vanessa L.

  • Duplex Conversion

    They converted my house into a duplex and did the permit drawings for demolishing walls for our open concept in the living room. Alex was nice to explain the zoning bylaws and the construction process during the renovation.

    Cristian Chan

  • New Build Permit

    Alex did an amazing job with our new build permit in Haldimand county. Very fair price, excellent service, will recommend to others

    Aepex Electric

  • Garden Suite

    We hired Fine Engineering & Development to design our garden suite in Toronto … He recommended keeping our garage space and having heat pumps instead of gas furnace to reduce utility bills. During the city permit review, he also handled all the paperwork.

    Pia Bourjeily

  • Ongoing Projects

    Alex and his business has been a very valuable asset to our team and business. He is very resourceful, attentive, has great costumer service and amazing attention to detail.

    Harrisson Cabrera

  • Front Porch Permit

    Reviewed my drawings for a front porch and helped me get the proper documentation the city requested. Everything was done professionally and on time. Great to work with!

    Andre Teixeira

Service area

Where We Work: within 90 minutes of Richmond Hill.

From the office we cover the whole GTA, north to Barrie and Orillia, east to Peterborough and Cobourg, west to Kitchener and Brantford, and down through Niagara.

Our office
Service area
Completed project
Drive time, off-peak

Municipalities we serve

46 across 8 regions

  • York Region

  • Toronto & Peel

  • Halton

  • Durham

    • Pickering
    • Ajax
    • Whitby
    • Oshawa
    • Clarington
    • Uxbridge
    • Scugog
  • Simcoe & Dufferin

    • Barrie (completed project)
    • Innisfil
    • Bradford
    • New Tecumseth
    • Orillia
    • Wasaga Beach
    • Collingwood
    • Orangeville
  • Waterloo, Wellington & Brant

    • Guelph (completed project)
    • Kitchener (completed project)
    • Waterloo
    • Cambridge
    • Brantford
  • Hamilton, Niagara & Haldimand

    • Hamilton
    • Grimsby
    • St. Catharines
    • Niagara Falls
    • Haldimand County (completed project)
  • Kawarthas & Northumberland

    • Peterborough
    • Kawartha Lakes
    • Port Hope
    • Cobourg

Past the 90-minute line

We've also completed projects in London and Strathroy. Farther out than that? Call (416) 990-9179 and ask.

Permits filed with municipalities including

  • City of Toronto
  • City of Richmond Hill
  • City of Brampton
  • City of London
  • City of Waterloo
  • City of Oshawa

Before you call

FAQ: legal basements in Barrie, answered.

Anything we haven’t answered here, we’ll answer on a call. The first consultation is free.

(416) 990-9179
  • A building permit for the unit, applied for with drawings. Barrie is a single-tier municipality, so there is no regional office in the process. Barrie also has a site alteration by-law, and we check it whenever the stairwell for a new entrance changes the grade beside the house. We prepare and file the set and deal with the examiner’s comments.

  • Only where the lot is inside Lake Simcoe Region Conservation Authority (LSRCA) regulation, near a watercourse, a valley or a floodplain. Digging a stairwell down to the basement changes the grade there, and the LSRCA permit may be needed before Barrie issues the building permit. The west of the city is under the Nottawasaga Valley Conservation Authority. For a lot there, we read that authority’s mapping instead, before the entrance is drawn.

  • Barrie allows up to four residential units per lot in residential zones, so an owner can add up to three additional residential units to an existing home. These units can be inside the main house, attached to it, or detached from it, and accessory buildings such as coach houses or garages are eligible, provided the units meet the zoning standards for the property’s zone. That can leave room for more than one extra unit, so we plan the basement layout with any later unit in mind before anything is filed.

  • Yes. We take on legal basements across Barrie, including Allandale and Painswick, within an hour of our Richmond Hill office. The first consultation is free, by phone or on site.

  • Three things to start: property address; basement ceiling height, measured floor to joist; and photos of the basement, the mechanical room and the outside wall where an entrance could go. Send those and we tell you what the City of Barrie Building Services will ask for before we quote.

  • Yes, and we have done it in Barrie: a review on our site is from an owner whose basement apartment we legalized through the City, preparing the drawings and dealing with its requirements. On site we look at the ceiling height, the bedroom windows, what separates the unit from the floor above and how it is heated, and the drawings then show each change the Building Code calls for. The application goes to the City of Barrie Building Services through APLI, and the unit becomes one of the three additional units the lot can hold.

  • Yes. Under O. Reg. 299/19 the person in an additional unit can be anyone, family or not, and Barrie permits up to three such units on a residential lot. The unit still needs its building permit from the City of Barrie Building Services, and we prepare that application and file it in APLI.

  • Usually one. O. Reg. 299/19 asks for a single space for whoever lives in the unit, and it can sit in tandem in the driveway, unless the zoning requires no space for the main home or rules out a space for the unit. Where it can go depends on the lot’s zone, under By-law 2009-141 for most of Barrie, so we fit it on the site plan before choosing the entrance, and the City of Barrie Building Services checks both.

  • Rarely. By-law 2014-115 is aimed at woodlots, so it reaches a tree only when the tree belongs to one of half an acre or more, and a typical tree beside a Barrie house is outside it unless the work is tied to a development application. The stairwell can still cut roots, so the trees near the house go on the site plan for the City of Barrie Building Services, and we put the entrance on the side that spares the ones you want to keep.

  • Through APLI, which shows the application’s status and emails you when it changes. The update to wait for is the permit closing after the final inspection: the unit is legal from then, not from the day the City of Barrie Building Services issues the permit. We book each inspection with the City as the work reaches it.

  • Usually. Under Ontario’s Planning Act a zoning by-law cannot rule out three units on a serviced urban lot with a detached, semi-detached or rowhouse on it, and Barrie allows more, up to three additional units in its residential zones, within each zone’s standards. In a semi or a townhouse the shared wall and the side yard, if there is one, decide where the entrance and the fire separation go, so we look at those first and then file with the City of Barrie Building Services.

Searched & answered

People Also Ask: what Barrie searches about legal basements.

Short answers to the legal basements questions people search most, and the broader topics they lead to.

Not covered here? Book a free consultation
  • A legal basement is a basement apartment that meets the Building Code and the local zoning: a self-contained second unit with its own kitchen and bathroom. The code calls it a secondary suite, and Ontario’s planning rules call it an additional residential unit. Fine Engineering designs and permits these units across the GTA and coordinates the build.

  • At least 1.95 m, about 6 ft 5 in, under Ontario’s 2024 Building Code, with 1.85 m of clear height allowed under beams and ducts. The measurement runs from the finished floor to the finished ceiling, so new flooring and drywall count against it. Fine Engineering measures the height at the first site visit, before any layout is drawn.

  • It needs a safe way out, which is usually its own exterior door. In a house that has stood for five years or more, the 2024 Building Code’s renovation rules also accept an exit route through the other unit, as long as the suite gets an extra escape window that opens from inside without tools and the smoke alarms are linked. Fine Engineering works out which route suits the layout.

  • Yes. Once a house has a secondary suite, its smoke alarms must be interconnected, by wire or wirelessly, so one sets off the rest, and shared spaces need them too. A suite with a fuel-burning appliance, or one sharing a wall, floor or ceiling with such an appliance or a garage, also needs carbon monoxide alarms by its bedrooms. Fine Engineering marks every alarm on the permit set.

  • For many homeowners, yes. A legal second unit can earn rent and add property value, and because it was built under a permit, it avoids the trouble an unpermitted suite causes when the house is sold. The return depends on how much the basement needs, whether that is more headroom, a new exit or fire separation. Fine Engineering prices that work before any drawing starts.

  • Usually because the heat reaching the room does not match the heat it loses. A room over a garage, or one with more glass and outside wall, loses heat faster, and a long or undersized duct delivers less air than the room needs. A room-by-room heat-loss calculation and a duct design show where the gap is. Fine Engineering does both for existing houses as well as new ones.

Good to know

Legal basement permits in Barrie

In Barrie the reviewer is the City of Barrie Building Services. Every Barrie lot sets its own terms: the spare capacity in the electrical panel and the size of the water service the two units will share decide how much work a basement unit needs.

We walk the site with the survey on a scheduled visit before anything is drawn, then file the legal basements package to the City of Barrie Building Services’s own checklist.

Legal basement apartments in Allandale and Painswick

Barrie’s housing runs to high-density waterfront condos built since the 1980s beside established suburban neighbourhoods. In the houses, the exit settles most basement layouts: a new door where the side yard has room for a stair, or a shared exit or escape window where it does not. On a visit in Holly or Ardagh Bluffs, that is the first thing we look at.

Which by-law a Barrie basement unit is measured against

Barrie allows additional units only where they meet the standards of the property’s zone. For most houses those standards are in Comprehensive Zoning By-law 2009-141, and inside the Allandale Major Transit Station Area they come from the Community Planning Permit System that replaced it there.

Some lots carry another municipality’s by-law. Secondary Plan land transferred from Innisfil in 2009 may still be zoned under Innisfil By-law 054-04, and land added on January 1, 2026 under Springwater By-law 5000 or Oro-Medonte By-law 97-95, so on those addresses we read the unit’s standards from that by-law.

What a Barrie basement application holds

The set we upload to APLI draws the basement existing and proposed, with the ceiling height under beams and ducts marked, the fire separation between the two units detailed, the exit from the unit and any escape window drawn to size, and the interconnected smoke alarms located. The heating and plumbing for the second household go in the same application.

The City of Barrie Building Services reviews that one set. When the examiner asks for a change, the request reaches us through APLI, and the revised sheet goes back into the same file rather than a new one.

Contact us

Entrance cut. Separation rated. Permit closed.

Send us the ceiling height and a few photos and we’ll tell you whether the basement can be made legal, on a free first call.

First consultation free(416) 990-9179