King Street Construction

King Street Construction # 1 ADU Builder
🏗️ Serving Kitchener-Waterloo & Surrounding
🏠 ADU, Multi-Family, Additions

05/28/2026

Most people don’t think about this part of a build, but site elevation can quietly change everything 📐

A “flat” lot is rarely actually flat once we measure it properly. Even small slope changes can impact how the entire project is designed and built.

Suddenly you’re looking at retaining walls, extra fill, or stepped footings just to make the structure work with the land.

The difference comes down to timing. When you catch it early, you can adjust the build, work with the natural grade, and avoid unnecessary costs and complications.

Good planning on the front end saves a lot of problems on the back end!

05/26/2026

Adding a basement to an ADU can range from $60K to $100K+, but on a lot like this, it often makes a lot of sense 🧮

With a slope like this, you’re already working with frost walls and a deeper foundation design. That means digging a bit further doesn’t always add as much cost as people expect.

The real advantage is what you get back: significantly more usable space for the investment.

On sloped lots, a basement is usually a smart move. On flat lots, it becomes a different conversation because the cost-benefit isn’t always as strong.

It all comes down to working with the land instead of forcing it 🏡

05/24/2026

This doesn’t look like much right now, but that’s the whole point 🏗️

In 5 to 6 months we'll have:
👉 850 square foot detached ADU in Waterloo
👉 Full walkout basement included

Designed for this client’s son, the build is all about keeping family close while still creating a fully independent living space.

Right now, it’s just prep and early stage work, but it will quickly turn into a fully functional home with real purpose behind every square foot.

Stay tuned for more from Project McDougall!

05/22/2026

🚧 In construction, the real test is rarely the part you planned for. It’s how you respond when a project throws you something unexpected.

The difference experience makes? Staying calm under pressure, adapting quickly, and keeping the build moving forward no matter what’s underneath the surface.

DID YOU KNOW? 🏗️✨Concrete is everywhere — from the roads you drive on to the buildings that touch the sky 🌍In fact, it’s...
05/22/2026

DID YOU KNOW? 🏗️✨
Concrete is everywhere — from the roads you drive on to the buildings that touch the sky 🌍
In fact, it’s the most widely used material on Earth after water. 💧

What began as a simple backyard vision is now a beautifully crafted modern 2-unit ADU. ✨🏡Designed from the ground up, Pr...
05/20/2026

What began as a simple backyard vision is now a beautifully crafted modern 2-unit ADU. ✨🏡

Designed from the ground up, Project Wellington was built to maximize space, elevate property value, and deliver a seamless blend of style and functionality. Every detail was thoughtfully transformed — and the results speak for themselves.

Swipe to see the incredible transformation. 👀

05/19/2026

Big progress update at Project Kinzie 🏗️

Drywall is complete, flooring is in and protected, trim is finished, and we’re now hanging doors and installing kitchen cabinets.

At this stage, sequencing is everything. Each trade follows the next in a tight order so the build stays efficient and nothing slows down the flow of work.

Next up, we’ll finish the remaining cabinetry, install the counters, and start interior paint while exterior work continues with brick and siding.

This is the part of the build where the space finally starts to feel real and you can see the finished product coming together 🔩

05/16/2026

This is the stage where things look close, but the real work is just getting dialled in 🔧

It can feel like the project is 90% done, but that last 10% is where everything gets defined. Interior finishes, trim, paint, counters, all the detail work that turns a build into a finished home.

At the same time, exterior work is still moving. Brick, siding, grading, driveway, and walkways all come together in the final push.

It takes tight coordination across every trade to make sure nothing gets rushed or missed.

This is where the quality really shows 🧱

05/15/2026

ADUs are one of the most flexible ways to add value to a property in Ontario 🏡

The rules are straightforward at a provincial level:
Long-term rentals are allowed, but short-term rental rules depend on your city or town.

That’s why planning matters just as much as building. Knowing what’s allowed upfront can shape your entire design and income potential.

More space, more flexibility, more opportunity 🔨

05/14/2026

Building an addition? Here are 3 mistakes people make before the first wall even goes up 👇

1️⃣ Hiring a general contractor without addition experience
2️⃣ Underestimating site prep + servicing
3️⃣ Thinking permits move as fast as renovations

Additions come with a lot of moving pieces, and the planning stage matters just as much as the build itself. The right team, proper prep work, and realistic timelines can save you a lot of headaches later on.

Save this for when you’re ready to build 📌

From concept to completion, we’re proud to build spaces our clients truly love. 🏡✨“Responsive, professional, knowledgeab...
05/14/2026

From concept to completion, we’re proud to build spaces our clients truly love. 🏡✨

“Responsive, professional, knowledgeable, and completed on time.” — feedback like this is why we do what we do.

Thinking about an ADU, renovation, or addition? Let’s bring your vision to life.

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Kitchener, ON

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