
Your plan, drawn properly
Custom floor plans
Layouts developed from your sketch or brief, checked against zoning and the code, and drawn for permit.
- Floor plans & elevations
- Zoning & lot fit
- Sections & details
- 3D views where they help a decision
New Custom Homes · Vaughan, York Region
Custom homes on Vaughan lots, from your sketch to occupancy: rebuilds on the built-out streets of Woodbridge and Thornhill, new houses elsewhere, and homes planned with added units under By-law 083-2025. Our Richmond Hill designers draw the house and file it with the City of Vaughan Building Standards Department, and our crew builds it.

What’s included
A new house is the one project where every discipline is ours from the start. The structural sheet never fights the mechanical one, and the office that drew both coordinates the build. In Vaughan the package goes to the City of Vaughan Building Standards Department, 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 from the lot to the occupancy permit, with one office answering for every drawing.
We walk the lot, check the zoning and any conservation or servicing constraints, and turn your brief or sketch into a first layout.
Architectural, structural and mechanical drawings developed together in one office, then filed for permit and followed through the city’s comments.
Excavation, foundation, framing, envelope, rough-ins and finishes by the builder we coordinate, with the engineer on site at each structural stage.
Final inspections, the occupancy permit, and a house built to the drawings you approved.
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) 990-9179A building permit with architectural, structural, mechanical and energy-compliance drawings and a grading and servicing plan, plus any minor variance or conservation permit the lot triggers. The City of Vaughan Building Standards Department issues the building permit and, at the end, the occupancy permit, and inspects the build in between. Vaughan’s Site Alteration By-law 031-2024 is aimed at larger sites; the city states it does not apply to individual residential properties, whose grading is reviewed with the building permit. So the grading plan goes in with the house drawings.
If the lot is in a TRCA Regulated Area, yes, and we check TRCA’s own mapping when the survey comes in. Building anything in a TRCA Regulated Area takes a TRCA permit, and Vaughan will not issue the building permit until it is in hand. TRCA asks for a pre-submission consultation, which we hold before the footprint is fixed. TRCA issues its permits in the owner’s name: the permit is yours, even though we prepare what it reviews. We confirm the issuing body when we apply, because TRCA is due to merge with the Central Lake Ontario Conservation Authority on February 1, 2027 or later.
It depends on the district. The first check is whether your lot is inside one. Vaughan has four Heritage Conservation Districts designated under Part V of the Ontario Heritage Act: Kleinburg-Nashville, Maple, Thornhill and Woodbridge. For a lot inside a district, we confirm with the City of Vaughan Building Standards Department what it asks of a new house before the massing is drawn.
Yes. We take on new custom homes across Vaughan, including Woodbridge and Maple, about half an hour from our Richmond Hill office. The first consultation is free, by phone or on site.
Three things to start: lot address and a survey, if you have one; your sketch, brief or a plan from another designer; and whether the lot is serviced or needs a well and septic. Send those and we tell you what the City of Vaughan Building Standards Department will ask for before we quote.
As big as the lot’s zoning standards allow: height, setbacks and lot coverage under Zoning By-law 001-2021, or under By-law 1-88 where part of the new by-law is still under appeal. On a rebuild in Woodbridge or Thornhill we work from the by-law rather than the size of the house being replaced, and we read it for your address before the design starts.
They can. Demolition, the new foundation and the service trenches all work near roots, and By-law 177-2025 needs a permit to injure or remove a tree 20 cm or more across, including one on a neighbour’s lot or on city land beside yours. We plot every tree that size on the survey at the start, because that permit comes from Parks and Forestry Operations and runs apart from the building permit the Building Standards Department issues for the house.
Yes. Ontario’s Building Code Act covers demolishing a building as well as constructing one, so the old house needs a permit from the City of Vaughan Building Standards Department before it comes down. On a rebuild in Woodbridge or Thornhill, we prepare that application with the new house drawings.
We open the application in Vaughan’s Online Permitting Portal and upload the full house set through the ePlans Portal linked to it. The portal’s My Permits / Services page then shows each stage of the Building Standards Department’s review, and we answer the examiner’s comments until the permit is issued.
Yes, if the lot has municipal water and sanitary service. Vaughan’s By-law 083-2025 lets a house hold up to two added units, and they are simpler to place in the first design than to fit in later, on the same permit set the Building Standards Department reviews for the house. On a lot with a well or septic system the house can still be built, but the by-law does not allow the added units.
Searched & answered
Short answers to the new custom homes questions people search most, and the broader topics they lead to.
Not covered here? Book a free consultationThe house sets it: its size, the finishes, the systems chosen and the site work the lot needs. Design and engineering are priced as separate lines from construction. Fine Engineering prices from drawings, so the quote comes after the free consultation, once there is a design to measure.
They can be. A builder repeating one plan across a subdivision can spread the design, engineering and approvals over many lots. A custom home carries those costs alone, and the owner’s choices of layout and structure add to them. Fine Engineering points out which design choices add cost as the first layout is drawn.
It depends on the lot and the house. Design and the permit come before construction, and once a complete application meets the Building Code’s criteria, the Code sets a statutory review period for a house permit. Fine Engineering gives a schedule with the quote and updates it as the municipality responds.
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.
Yes. A new bathroom means new drains, vents and water supply, and installing or changing plumbing is building permit work with its own inspections. Replacing a fixture in the same spot usually is not. The drawing shows the drain, waste and vent layout the inspector will check. Plumbing drawings for bathrooms, kitchens and second units are part of Fine Engineering’s mechanical work.
Good to know
In Vaughan the reviewer is the City of Vaughan Building Standards Department. Every Vaughan lot sets its own terms: zoning, servicing, soil and any conservation authority permit decide what the lot allows before a plan is drawn.
We walk the site with the survey, usually within a day or two of the call, before anything is drawn, then file the new custom homes package to the City of Vaughan Building Standards Department’s own checklist.
Vaughan’s housing is single-detached homes built mostly from the 1980s onward, with Woodbridge and Thornhill largely built out. Because a custom home in the built-out areas replaces a house that is already there, the demolition, the existing service connections and the neighbours’ grades shape the design as much as the brief does.
By-law 083-2025 gives a Vaughan lot one place for a unit in a detached accessory building, and a new build is the easiest time to plan it. With a garden suite in the yard, the new house can hold one added unit inside, not two, so we settle the mix of units before the house is laid out.
Ontario’s regulation then shapes the site plan: the suite has to stand at least 4 m from the house unless the by-law permits less, and with added units the buildings may cover up to 45 per cent of the lot unless the by-law allows more. We place the house, the suite and the path between them together.
A new house has to sit inside the minimum setbacks of the zoning by-law that covers its lot, and in most of Vaughan that is Zoning By-law 001-2021. Since November 21, 2025, Ontario has read those minimums at 90 per cent of the stated distance on urban residential land outside the Greenbelt, apart from some prescribed areas.
On a rebuild lot in Woodbridge or Thornhill, that reduction can widen the house or let it reach further toward the rear. We check whether your lot qualifies, design to the reduced figure only where it does, and show the setbacks on the site plan the Building Standards Department reviews.
Contact us
Send us the lot address and your sketch and we’ll tell you what it takes, on a free first call.
First consultation free(416) 990-9179