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Accurate Designs

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Canada
Mississauga, ON
Accurate Designs

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Accurate Designs is a custom home design, renovation & construction firm. We can manage your custom home or renovation project from start to finish.

We specialize in design and building permit drawings. We can project manage the entire construction process as well.

10/13/2026

A curved stair is the first thing you see when the front door opens. This one has five different radii, so every tread is different.

Each tread fits one spot and no other. The stair was built off site. The stringers and treads arrived separately.

Mix two treads up and the stair has to be taken apart and put back together. That's a coordination problem, not a carpentry one.

The curve was decided on paper first. The radii. The rise and run. The headroom at the turn. How it lands on both floors.

Catch a wrong number on the drawing and it's a line on a plan. Catch it with the treads cut and it's a rebuild: cost and delay.

Resolve complexity on paper before it costs on site.

Start with a feasibility conversation. Link in bio.

10/07/2026

You can't tell what a lot is hiding by looking at it. This one looked like a routine teardown and rebuild.

During demolition we hit wet, unstable soil. We stopped before removing the old foundation. It was helping hold back the ground between this lot and the homes on either side.

Geotechnical testing showed the bad soil ran to bedrock, about 20 feet down. The site had been part of a river system in the late 1800s and was filled in later for housing. A tree stump buried 15 feet down confirmed it.

Conventional footings don't work on soil like that. The structural engineer specified helical piles: steel shafts screwed down until they reach load-bearing ground. We chose 97 off-the-shelf piles over 62 custom ones. They came in faster and cheaper.

All of this happened before a single new wall went up. Temporary shoring alone ran about $100,000, and site costs passed $300,000.

This is why we test a site before committing to a foundation design. Find this after you've started building and it costs far more, in money and in schedule.

Start with a feasibility conversation. Link in bio.

10/05/2026

Family wanted a house, a pool and a cabana on a wooded lot in the GTA. Lot's inside 120 metres of a provincially significant wetland, no municipal services. So it's a conservation approval, plus a well and septic, and that sets the whole site layout. They had the plan before they closed, so it all went in as one application. Eight weeks. The approval used up nearly everything that site is allowed to hold, and they knew that when they picked it. Ask those questions after you own the lot and you're finding out what you can't do.

Start with a feasibility conversation. Message us here.

07/31/2026

Three things happened here that a homeowner will never see again once the house is finished.

The steel is in. Those red beams are why the main floor can have the spans it has. They went in before framing because there's no getting them in afterward.

The black dimpled sheet on the outside of the wall is drainage membrane. It holds a permanent air gap against the concrete so water travels down to the weeping tile instead of sitting against your foundation. It costs very little. It is the single cheapest insurance policy on the entire build.

And it's snowing. Cold-weather concrete work is a specialty, not an inconvenience. Heat, blankets, mix design, cure monitoring are just a few of the items to consider.

Every one of these gets buried. Which is exactly why you want someone documenting it while it's visible.

07/30/2026

The red circle is a change that cost nothing.

'Add stair landing structure.' Four words, written on a drawing, before a single piece of lumber was ordered.

Now look at the revision block in the corner. Two entries. March 2024, issued for floor and truss design. June 2024, issued for permit. Three months between them.

That gap is where the work actually happens. It's drawings going out to the truss supplier, coming back with what they can and can't do, getting reconciled against the structure, then going to the City. By the time this sheet was issued for permit, the stair landing was already resolved.

Had it not been, had that circle been drawn on site instead of on paper, you're looking at framing already in place, a stair supplier who can't land the top tread where the drawing says, and a change order.

This is what people are actually buying when they hire a designer, and it's the least visible thing we do. Nobody photographs a revision. There's nothing to look at. A morning of coordination just quietly removes a problem that could cost five figures in three months' time.

Complexity resolved on paper doesn't cost you on site.

04/02/2026

The "weeping tile" is what actually removes the water from around the foundation.

Any moisture caught between the sealant and the dimpled membrane goes down the wall and into a weeping tile system is installed at the base of the footing to collect that water and carry it away from the home. A weeping tile is a perforated flexible plastic pipe encased in a fine mesh fabric that keeps the silt from getting in and clogging it.

Without this step, water has nowhere to go, even with proper waterproofing and drainage layers in place.
This is what completes the system and relieves pressure before it ever becomes a problem.

When all three steps work together, the foundation stays dry and performs the way it’s intended to over time.

03/31/2026

This is what keeps water from sitting against the foundation.

After the sealant is applied, a dimpled membrane is installed over the wall. Its purpose isn’t to stop water, it’s to manage it.
The dimples create a consistent air gap that allows water to move downward instead of building pressure against the foundation.
Without this layer, water can remain trapped against the wall, increasing the risk of long-term moisture issues.

Next step: how we collect and carry that water away from the home entirely.

03/29/2026

This is the first line of defense against water.

A foundation sealant is applied directly to the concrete wall, either sprayed or rolled on, to create a continuous waterproof barrier.
If this layer isn’t applied properly, moisture can pe*****te the foundation long before the rest of the system has a chance to do its job.
It’s a step you’ll never see again once the build is complete but it plays a major role in how the home performs over time.

Next step: how we create a drainage path to keep water away from the foundation entirely.

03/26/2026

This is where the structure is already defined before any concrete is poured.

The entire footprint of the home is laid out and reinforced so the footings can properly transfer loads into the ground. Small mistakes here can lead to major issues later.

It’s one of the most important structural steps in the entire build.

03/24/2026

Most homeowners underestimate how much planning goes into this stage.

Large custom homes often require deep excavation to accommodate full basements and mechanical spaces. Proper excavation ensures the foundation sits on stable ground and performs reliably long term.

This is one of the first stages where experience really matters.

Address

Mississauga, ON

Opening Hours

Monday	9am - 5pm
Tuesday	9am - 5pm
Wednesday	9am - 5pm
Thursday	9am - 5pm
Friday	9am - 5pm

Telephone

+14167681290

Website

http://www.accuratedesigns.ca/

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