

Transform your Vaughan property into a high-yield multiplex with expert design and construction.



Proud to serve communities throughout Vaughan, ON
We ensure your multi-unit conversion meets every line of the Ontario Building Code and Vaughan municipal bylaws. This covers essential fire-life safety measures like egress windows, fire-rated utility rooms, and interconnected alarms. Our meticulous approach guarantees your investment is legally protected and ready for the rental market.
Our architects specialize in floor plan optimization that prioritizes bedroom count and functional living areas without sacrificing aesthetic appeal. By transforming dead space into usable square footage, we help Vaughan landlords command higher rents and minimize vacancy rates. We focus on durable, high-traffic finishes that retain their value over time.
Navigating the Vaughan building department can be overwhelming, so we handle the entire process from initial CAD drawings to final inspections. We coordinate with structural engineers and city planners to solve permit hurdles before they delay your project. This end-to-end service allows you to focus on your investment strategy while we handle the bureaucracy.
We begin by verifying your property's zoning status within Vaughan to ensure a multi-unit conversion is permissible. This step involves reviewing local bylaws and setbacks, which prevents the common pitfall of designing a space that the city won't approve. Identifying these constraints early ensures we only move forward with a viable investment plan.
Our team prepares a comprehensive drawing package including architectural layouts, structural reinforcements, and mechanical plans for HVAC separation. In Vaughan, precision at this stage is vital to avoid repeated revisions with the building department. We coordinate with engineers to ensure the new density doesn't compromise the existing structure's safety.
Construction begins with a focus on fire separation and sound dampening between units, which are the most critical components for legal occupancy. We handle the excavation for new entrances and the rerouting of plumbing for additional kitchens and bathrooms. Our site supervisors ensure that all work is ready for the sequential inspections required by York Region officials.
The final stage involves a meticulous walkthrough to ensure every detail meets the high standards of our design and the city's requirements. We provide you with all project documentation, municipal occupancy permits, and warranty information. This final step transforms your construction site into a legal, income-producing asset with total peace of mind.
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Learn MoreBuilt by Pros helped us convert our large Woodbridge bungalow into a legal duplex to help pay for our mortgage. The project involved a complete basement excavation for a separate walk-out entrance and a new 200-amp electrical service. Suzanne and Ricardo were incredibly professional, finishing the project in just under five months despite some unexpected structural issues with the foundation. Our new tenant moved in two weeks after the final city inspection, and the rent is even higher than we projected.
We wanted to create a secondary suite for my parents in Vellore Village while maintaining our own privacy. The team's design-build approach allowed us to add a small addition to the rear which created a beautiful sun-drenched living space for the new unit. They managed all the Vaughan permits and handled the fire separation requirements perfectly. The green scalloped tile in the new bathroom is a showstopper, and the soundproofing is so good we barely even know they are downstairs!
I hired Built by Pros for a triplex conversion project in Maple after seeing their work on a neighbor's house. They transformed an aging two-story into three distinct, modern units, each with their own kitchen and laundry. The team navigated a tricky minor variance with the city regarding our driveway width, which was a huge relief. The quality of the finish, especially in the kitchens with the gold accents, has definitely helped us attract professional tenants who treat the property with respect.

Ricardo Lora

Suzanne Morgan

Petra Tobias

Stronger Together

Bastian Zuniga

Marco Lopez
Contact us for unmatched expertise in home renovations. With experience since 2008, we deliver top-quality materials and superior workmanship—trusted by clients and built on referrals.