Land Grading in Oakville — Yard, Driveway, Lot

OCM Excavation & Construction handles land grading in Oakville for homeowners, builders, and landscapers from Bronte to Joshua Creek. We do rough grading on new builds, final grading for lot grading certificate sign-off, drainage corrections on existing lots, and driveway sub-base prep. Town of Oakville wants minimum 2% slope on front and rear yards and a maximum 5% rear apron — we build to those numbers. Call 416-317-3090 for a free site visit.

Where We Grade in Oakville

Oakville lots vary wildly. Old Oakville and Bronte are heritage blocks with mature canopy, tight access, and old tile drainage that doesn’t behave the way the surveyor expected. Glen Abbey and Iroquois Ridge are estate-scale — long runs, more cut and fill, often a walkout in the back. Joshua Creek and West Oak Trails are newer subdivisions where the swale between you and the neighbour is the only thing keeping water out of the basement. We grade in all of them, plus Kerr Village, College Park, and the ravine-edge lots along Sixteen Mile and Bronte Creek.

If your property backs onto a regulated feature, Conservation Halton rules apply before our machines move. We flag the buffer line before we start cutting.

What “Lot Grading” Actually Means in Oakville

The Town of Oakville treats lot grading as a regulated part of the building permit and final inspection process. Three things drive the work:

Minimum 2% slope on front and rear yard surfaces away from the foundation.
Maximum 5% grade across the rear apron — the first 5 metres off the back of the house.
Lot Grading Certificate at final inspection, signed and stamped by an Ontario Land Surveyor (OLS) or a Professional Engineer (P.Eng.), to release your security deposit on new builds and major additions.

Our job is to move dirt so the surveyor can sign the certificate without a re-grade. We work off the stamped grading plan, hit the spot elevations, and re-cut swales where the builder left them flat.

Our Grading Process

Site walk and plan review. We pull your grading plan or pick up shot elevations on site. If you don’t have a plan, we measure existing grades and tell you what the lot actually does versus what the Town expects.
Strip and stockpile. Topsoil comes off and goes in a pile, separate from the subsoil. We re-use what we can.
Rough grade. Skid steer or mini excavator cuts to plan elevations, builds swales, ties into existing catch basins or rear-yard outlets.
Compaction. Sub-grade gets compacted in lifts under driveways, walkways, patios, and pool decks. No surprises in year two.
Final grade and topsoil. Topsoil back, raked to finished grade, ready for sod, seed, or hardscape.
Surveyor coordination. If you need the lot grading certificate, we work with your OLS or P.Eng. to make sure shots hit the first time.

Drainage Fixes on Existing Oakville Lots

Most calls we get in Oakville aren’t new builds — they’re “water is coming in the basement” or “the back yard is a swamp every spring.” Usual culprits: a swale that got filled in by the last landscaper, a downspout dumping next to the foundation, a window well below grade, or a rear-yard catch basin buried under sod. We re-cut the swale, regrade away from the foundation, add a catch basin if there’s nowhere for water to go, and tie it into the storm or a soakaway pit where the soil drains.

Conservation Halton and Ravine Lots

If your Oakville lot touches Sixteen Mile Creek, Bronte Creek, Twelve Mile Creek, the Lake Ontario shoreline, or any mapped valley feature, Conservation Halton regulates work in the buffer — typically 15 to 30 metres from the stable top of bank under O. Reg 41/24. That covers a lot of Glen Abbey, Iroquois Ridge, and Old Oakville. We don’t move dirt inside the regulated area until the CH permit is in hand. We’ll tell you up front if your job triggers it, so you’re not surprised.

Site Alteration Permits

Town of Oakville Site Alteration By-law 2023-047 controls fill, removal, and grading above certain thresholds. Small residential re-grades usually don’t trigger it. Bringing in trucks of fill, raising your lot, or changing drainage onto a neighbour usually does. We flag it before the work starts.

Why Oakville Owners Call OCM

We grade to the stamped plan, not by eye.
We know the Halton Region inspectors and what they want to see at final.
We coordinate with your surveyor so the certificate signs off on the first visit.
One crew handles excavation, drainage, and grading — no finger-pointing between trades.
Free quotes. Call 416-317-3090 or use the free quote form.

Related Services in Oakville

Grading usually rides along with other dirt work. See our excavation contractor Oakville page for foundation digs, trenching, and demo. Full GTA coverage on the service areas page.

FAQ

Do I need a lot grading certificate in Oakville?

If you’re closing out a new build or a major addition, yes. The Town holds a security deposit and won’t release it until an Ontario Land Surveyor or P.Eng. signs and stamps the lot grading certificate confirming the lot drains per the approved plan. Existing-home re-grades for drainage usually don’t need one unless a permit was pulled.

What slope does Oakville want on my yard?

Town design criteria call for a minimum 2% slope on front and rear yard surfaces draining away from the house, and a maximum 5% grade across the rear apron — the first 5 metres off the back wall. The grading plan that came with your building permit gives the exact spot elevations.

My lot backs onto a ravine — can you still grade?

Often yes, but Conservation Halton regulates work inside the buffer from top of bank under O. Reg 41/24, usually 15 to 30 metres. We confirm whether your job falls inside the regulated area and, if it does, the CH permit has to be in hand before excavation. We’ll tell you on the site visit.

Can you fix a wet back yard without a full re-grade?

Sometimes. If the problem is a buried swale, a downspout dumping at the foundation, or a missing catch basin, we can usually solve it with targeted re-cuts and drainage work. If the original grade slopes toward the house, a full re-grade is the honest answer. We’ll tell you which one you’ve got.

How long does a typical Oakville grading job take?

A standard residential rough or final grade is usually one to three days on site, depending on lot size, access, and how much fill is moving. Estate lots in Glen Abbey or Iroquois Ridge can stretch longer. Drainage retrofits on existing yards are typically one to two days.

Do you work with my surveyor or engineer?

Yes. We grade to the stamped plan and coordinate the as-built shot with your OLS or P.Eng. so the lot grading certificate signs off the first time. If you don’t have a surveyor lined up, we can recommend ones we’ve worked with in Oakville.

Get a Free Oakville Grading Quote

Send the address and the grading plan if you have one. We’ll come out, walk the lot, and price the work. Call 416-317-3090 or use the free quote form.