
Maximize your property value with expert multi-unit conversions and legal basement suites in Mississauga.
Proud to serve communities throughout Mississauga, ON
We transform underutilized residential footprints into high-density rental units by reconfiguring structural walls and optimizing mechanical paths. This specialized design approach ensures that every inch of your Mississauga property generates rental income, often increasing the total asset value by 50% or more. By focusing on flow and storage, we make even smaller suites feel spacious and premium.
Our team handles every detail of the Mississauga 'Additional Residential Unit' (ARU) permit application, including architectural drawings and fire safety engineering. We navigate the complex local zoning bylaws so you don't have to, ensuring your duplex or triplex is fully legal and protected from future liability. This comprehensive oversight prevents costly redesigns and construction delays during the city inspection phases.
With over 15 years of experience in the GTA, we understand the technical nuances of fire separations, soundproofing, and legal egress that are specific to multiplex housing. We utilize professional-grade materials such as Roxul Safe’n’Sound and specialized fire-rated assemblies to ensure your units meet all provincial and municipal codes. Our expertise reduces the long-term maintenance costs and improves tenant retention through superior building quality.
We conduct a thorough audit of your Mississauga property's zoning bylaws and physical constraints to determine the maximum unit count possible. We check setbacks, parking availability, and structural integrity to ensure the project is viable before you spend money on designs. This step prevents the common pitfall of designing a space that the city will never approve.
Our team drafts detailed CAD plans and structural drawings that fulfill Mississauga's specific requirements for multiplexes, including fire separation details and mechanical schedules. we submit all paperwork to the city and manage all back-and-forth communications with building officials on your behalf. This ensures a legally compliant blueprint and a smooth path to obtaining your building permit.
During construction, we execute the heavy lifting: underpinning foundations for height, upgrading electrical services to handle multiple units, and installing acoustic barriers. We prioritize the 'guts' of the building to ensure the property can handle the increased load of multiple households without issue. This phase is critical for the long-term durability and safety of your rental asset.
Once construction is finished, we coordinate the final inspections from the City of Mississauga and the Electrical Safety Authority to secure your occupancy permit. We also provide you with a comprehensive binder containing all warranties, sub-metering instructions, and maintenance schedules for the new units. We leave you with a fully legal, rent-ready property that is ready to generate profit immediately.
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Learn MoreRicardo and his crew converted my large single-family home in Erin Mills into a legal triplex over the course of seven months. The project involved a complete basement dig-out for a new walkout entrance and a full upstairs reconfiguration. Their knowledge of Mississauga's fire code was impressive, and they passed every inspection without a single hitch. The soundproofing between the floors is so effective that my tenants barely hear each other, which has been huge for maintaining a peaceful house.
We worked with Suzanne to design a garden suite in our backyard in Streetsville, and the outcome exceeded our expectations. The team managed the entire zoning variance process with the City of Mississauga, which was a huge relief for us. The construction phase was handled with incredible professionalism, and despite the tight lot access, they kept the site organized and clean. Our property value has skyrocketed, and we are now generating excellent rental income from a space that was just an empty lawn.
I hired Built By Pros for an optimize space project to turn my Meadowvale bungalow into a legal duplex. The renovation took about four months from initial framing to the final paint touch-ups. They managed to fit two bedrooms and a den into the basement unit while keeping the ceiling height high enough to meet legal standards. The plumbing and electrical upgrades were extensive, but Ricardo's team explained every step and kept us right on our original budget.

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.