Design & Building Permits

The Foundation of Every Thoughtful Renovation

At onlyBASEMENTS, design is never an afterthought—it’s the beginning of everything.

Our process starts with understanding your needs, aligning with your vision, evaluating feasibility, and translating it into a refined design plan.

Our in-house team of architect and engineer work together to develop layouts that not only meet your goals but are functional and code compliance.

Before any drawing is finalized, our structural engineer conduct a full evaluation of your basement’s foundation, load-bearing walls, and soil conditions—ensuring that we’re building safely, legally, and intelligently.

From Design to Approval

We take care of the entire building permit process for you—from initial planning to final approval. That includes:

Creating detailed architectural and structural drawings
Preparing all city applications and submissions
Managing inspections and revisions
Coordinating with city officials and zoning departments

Legal Rental Units

Planning to turn your basement into a legal rental suite? We specialize in that. Our team knows exactly what’s required under the Ontario Building Code, including:

Fire-rated separations
Proper egress windows
Independent HVAC systems
Separate entrances

Legal and beautifully designed—our legal rental suites meet every standard and building code.

Your Basement space. Reimagined.

From spa-style bathrooms to open-concept living spaces, our layouts are built to elevate everyday life. We focus on flow, natural light, headroom, and connection to the rest of the home. We use architectural strategies to make your basement feel bright, open, and inviting.

At onlyBASEMENTS, we don’t just follow plans—we create them. We bring together architecture, engineering, and construction under one roof to ensure every basement we build is legal, functional, and lasting.

Let’s lay the foundation for your next chapter, starting from the ground up.

One team. One clear plan. One point of accountability.