
Ground floor and up
Rear & side additions
Kitchens, family rooms and bedrooms added at the back or side, on new foundations tied to the old.
- Foundation & footings
- Tie-in to existing structure
- Roof junctions
- Matching or contrasting exterior
Home Additions · Aurora, York Region
Home additions in Aurora, designed, permitted and built: rear, side and second-storey additions on postwar houses west of Yonge and on newer homes in the Bayview subdivisions. Our P.Eng checks what the existing foundation can carry, we draw the addition to Zoning By-law 6000-17, and the set goes to the Town of Aurora Building Division through CityView.

What’s included
An addition is judged where it meets the old house: the beam that opens the wall, the roof that joins the existing one, the ducts that have to reach the new rooms. We design those joints first. In Aurora the package goes to the Town of Aurora Building Division, and it is drawn to that department’s checklist.
The package
Find your situation below. If it’s there, this is the service, and the card underneath is everything you get from our one office.
05 common situations
07
items in your package, all from one P.Eng and BCIN team.
Drawn & stamped in-house
How it runs
Four steps, with the slowest one, the tie-in to the house you are living in, planned around you.
We measure the house and lot, check what the by-law allows and look at the foundation and framing the addition will connect to.
Plans and elevations, structure, HVAC and electrical from one office, filed with the city and answered at no extra charge.
Excavation, foundation, framing and the opening into the existing house, then rough-ins, exterior and finishes, inspected at each stage.
Final inspection, permit closed, the house handed back as one building.
Case files
Open any file for the scope, the disciplines involved, what we delivered and what the owner came away with.

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.
Delivered
New living space on a lot the owners already had.
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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.
Delivered
An open layout where the load-bearing walls used to be.
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A code-compliant second unit with its own entrance, fire separations between the units, HVAC design and the full permit package.
Delivered
A legal second unit that brings in rent and adds property value.
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A new build taken from the client’s sketch to occupancy, with the architectural, structural and mechanical design done by one team.
Delivered
Built to the client’s own plan, with one team answering for every discipline.
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A two-storey garden suite laid out to get the most usable space from the footprint, designed and permitted as a rentable unit.
Delivered
Rental income and a higher property value.
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A dental office converted into a supermarket. Interior renovation, a new plumbing system and fire separations upgraded to the Ontario Fire Code.
Delivered
A dental office reopened as a supermarket, compliant with the Ontario Fire Code.
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A custom covered porch that turns the front of the house into usable outdoor space. Addition design and structural drawings for the permit.
Delivered
More usable outdoor space and added home value.
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Site grading to manage drainage and prepare the land for a new driveway, drawn as a grading plan for the site alteration permit.
Delivered
Drainage handled and the land ready for a new driveway.
Start a project like thisPhoto plates
Additions, basements, kitchens, new builds and commercial fit-outs. Drag a row to scrub through it, or open any photo full size.Tap any photo to see it full size.
21 platesResidential, commercial & new build
The drawing set
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.
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
Service area
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.
46 across 8 regions
York Region
Toronto & Peel
Halton
Durham
Simcoe & Dufferin
Waterloo, Wellington & Brant
Hamilton, Niagara & Haldimand
Kawarthas & Northumberland
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
Before you call
Anything we haven’t answered here, we’ll answer on a call. The first consultation is free.
(416) 990-9179The Town of Aurora Building Division handles the zoning check, the permit and the inspections; York Region looks after regional roads and servicing. The application goes in through the CityView Portal, which also shows its status and takes our inspection requests during the build.
If the lot is inside the regulated area of the Lake Simcoe Region Conservation Authority (LSRCA), yes, and the LSRCA permit comes before the Aurora building permit. The authority must publish maps of its regulated areas and review them at least once a year, so we check the current map against your survey.
Yes, if it fits the zoning, and that is the first thing we check. Aurora’s comprehensive zoning by-law is By-law 6000-17, which Council approved on June 27, 2017, completing the first comprehensive review of the zoning by-law since 1979. We read your zone’s setbacks, height and coverage from it, along with any site-specific exception on your lot. An addition that misses one of them goes to the Committee of Adjustment for a minor variance before the permit is filed.
It depends on whether your house is inside it. Aurora has one Heritage Conservation District designated under Part V of the Ontario Heritage Act: the Northeast Old Aurora Heritage Conservation District. For a house inside the district, we ask Aurora what it requires of an addition and design to that; outside it, the usual zoning and permit rules apply.
Yes. We take on home additions across Aurora, including Aurora Heights and Regency Acres, about half an hour from our Richmond Hill office. The first consultation is free, by phone or on site.
Three things to start: property address and a survey, if you have one; what you want to add and where; and photos of the side of the house and the yard where it would go. Send those and we tell you what the Town of Aurora Building Division will ask for before we quote.
It can, because new footings cut into the roots of any tree nearby, and Bylaw 5850-16 regulates injuring a tree as well as cutting it down. A heritage tree, or any tree on a lot in the Northeast Old Aurora district, needs a permit first, while on other lots up to two larger trees a year can go without one. We put the surveyed trees on the site plan before the footprint is drawn.
Yes. Registration By-law 6660-24 treats a unit attached to the house as an Integrated Unit, so an addition can hold one, registered with the Town as well as permitted. With a unit in the addition and another in the basement, the lot has its three units and no room left for a garden suite. We design the entrance, fire separation and exit into the addition from the start, so the Town of Aurora Building Division reviews one complete set.
It may. Your zone in Zoning By-law 6000-17 sets the lot coverage, and we read how the by-law counts a covered porch before either one is sized. If the two together go over, the choices are a smaller porch, a smaller addition or a minor variance from the Committee of Adjustment, and the Town of Aurora Building Division holds the permit until that is decided.
Often, yes. Houses west of Yonge went up long before Council adopted Zoning By-law 6000-17 in 2017, and an older house that sits closer to a lot line than the zone now allows can usually stay as it is. The new part is held to the current zone, though, or needs a minor variance before the Town of Aurora Building Division will issue the permit, so we measure the existing setbacks on the survey and keep the addition inside the ones 6000-17 sets.
Searched & answered
Short answers to the home additions questions people search most, and the broader topics they lead to.
Not covered here? Book a free consultationSize, storeys, how much of the existing house is opened and the finishes set it, so a figure given before there is a design means little. Foundation and structure are the fixed part and finishes the variable one, and a minor variance or a new heating system adds its own line. Fine Engineering itemizes the addition after the site visit.
It depends on what the addition adds: a bedroom, a bigger kitchen or a rental unit. The first two let the owner stay on a lot they already own, and a rental unit can also bring in income. Fine Engineering’s Director is a Broker of Record and can say what the new space may be worth at resale before the owner spends.
Once a complete application is in, Ontario’s Building Code gives the municipality 10 business days to issue a house permit or refuse it with reasons. Larger and more complex buildings get a longer period. The count only starts when nothing is missing, so an absent sheet or an unresolved zoning issue holds it back. Fine Engineering checks zoning and code before anything is submitted.
The application form, the drawings the Building Code calls for, and every other approval the project depends on. Zoning counts as applicable law, so a needed minor variance has to be granted before the permit can be issued, and a lot in a conservation authority’s regulated area may need that authority’s permit first. Fine Engineering assembles the whole package, with the designer’s registration details on the drawings.
Most often because the plans do not show that the work meets the Building Code or applicable law, such as the zoning by-law. A permit is also withheld when the law requires an engineer’s or architect’s design and the drawings lack one, or when the builder of a new home is unlicensed. The refusal must state its reasons, and Fine Engineering revises the set to answer each one.
Stop work and start on the drawings. A stop-work order usually means construction began without a permit or departed from the approved plans. Getting out of it takes a permit application that shows what was built and what is proposed, then whatever inspections the city asks for. Fine Engineering prepares those drawings and replies to the city’s letters.
Good to know
In Aurora the reviewer is the Town of Aurora Building Division. Every Aurora lot sets its own terms: setbacks, lot coverage, what the existing foundation can carry and where the roof will join decide the addition before the first drawing.
We walk the site with the survey, usually within a day or two of the call, before anything is drawn, then file the home additions package to the Town of Aurora Building Division’s own checklist.
Aurora has established postwar neighbourhoods west of Yonge seeing infill rebuilds, with newer subdivisions in the Bayview secondary plan areas to the east. On the older lots, where rebuilds are going up, we assess the foundation and framing so you can weigh adding to the house against replacing it. A newer subdivision lot usually has an approved grading plan, and a rear addition is designed to keep its drainage working.
A deep rear addition and a garden suite compete for the same backyard. Registration By-law 6660-24 lets an Aurora lot hold one detached Ancillary Unit in the rear or interior side yard, but the yards and lot coverage in your zone of By-law 6000-17 still apply to both buildings. If a suite is a possibility, we lay out the addition and the suite on the survey together, so you size the addition knowing what it leaves.
A second storey keeps the backyard free and puts the extra load on the house instead. In a postwar house west of Yonge we find out what the original footings and foundation walls are before designing anything above them, and add footings or reinforce walls where the new load needs it.
Your zone in By-law 6000-17 sets how tall the house can get, and in the Northeast Old Aurora district we ask the Town about the new roofline before the elevations are drawn.
Contact us
Send us the address and what you want to add and we’ll tell you what fits, on a free first call.
First consultation free(416) 990-9179