
Transform your Oakville property into a high yielding multi unit residence with expert design.



We identify underutilized square footage in your Oakville home to create additional legal suites that significantly increase monthly cash flow and total property value. Our team analyzes current market rents to ensure the design targets high-yield tenant segments.
Every multi-unit project is built to exceed Ontario Building Code and Oakville municipal fire safety regulations, including legal separate entrances and fire-rated separations. We handle all inspections and permit filings to ensure your investment is fully protected and legal.
Our in-house design team creates bespoke floor plans that prioritize privacy and efficient use of space, from garden suites to basement conversions. We handle everything from CAD drawings to final finishes, ensuring a seamless transition from plan to reality.
Complete home or commercial rebuilds to give you a new structure, keeping only what can be re-purposed to save cost and the environment.
Learn MoreUpgrade existing spaces with quality craftsmanship to better meet the needs of your family.
Learn MoreWhether at your home or business, we provide zoning and permitting services as part of our planning process.
Learn MoreFull-service construction for commercial projects. Let our in house design team elevate your brand with custom space design.
Learn MoreCustom solutions to maximize the return on your property investment.
Learn MoreWe have the ADA design training in house to ensure your home is ready for your golden years , even when your are not.
Learn MoreWe conduct a thorough walkthrough of your Oakville property to assess structural integrity and potential for conversion. Our team checks local zoning bylaws and parking requirements to ensure your multi-unit goals are achievable within current regulations.
Our designers create detailed floor plans optimized for rental yield, focusing on privacy and space efficiency. We handle the entire application process for Oakville building permits, ensuring all CAD drawings and engineering requirements meet municipal standards for legal units.
Our skilled trades execute the build with a focus on fire separation, soundproofing, and independent utility systems. We maintain a clean, organized job site and manage all necessary town inspections at key milestones to keep the project on its week-by-week schedule.
We complete a finished-space walkthrough and ensure all deficiencies are corrected prior to the final town inspection. You receive a complete package of warrants, permits, and documentation, leaving you with a legal, move-in-ready property ready for the Oakville rental market.
Under current provincial and local regulations, most residential lots in Oakville permit a main dwelling plus two additional residential units, such as a basement suite and a detached garden suite. However, specific zoning bylaws regarding lot coverage and parking requirements may apply to your specific address. We recommend a professional site consultation to determine the maximum density your property can support legally.
To be considered legal, a unit must have a separate entrance, meet minimum ceiling height requirements (typically 6'5" under ductwork), and satisfy fire safety codes including fire-rated drywall and interconnected smoke alarms. It also must be registered with the Town of Oakville and pass all building, plumbing, and electrical inspections. Our team manages this entire certification process for you to ensure your insurance and liability are protected.
While adding a legal suite will increase the assessed value of your property, the increase in tax is usually modest compared to the significant rental income generated. In many cases, adding units is the most cost-effective way to boost property value without the high costs of land acquisition. We can provide estimates based on similar projects we have completed in the Oakville area to help you budget effectively.
We typically recommend upgrading the main electrical panel to at least 200 amps and installing separate sub-meters for each unit. For HVAC, we often install independent ductless mini-split systems or separate high-efficiency furnaces if space allows. This allows tenants to control their own comfort levels and enables landlords to pass utility costs directly to the residents, simplifying management and improving your bottom line.
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Built By Pros transformed my large Oakville basement into a stunning two-bedroom legal suite in just under four months. The team handled all the complex Oakville permits and fire code requirements perfectly, which was a huge relief. They used high-quality soundproofing between floors that really works; we barely hear the tenants upstairs. The project was finished on budget, and the rental income has already covered a significant part of the renovation cost.
We worked with Suzanne and Ricardo to convert our detached garage into a garden suite for my elderly parents. The design process was incredibly thorough, and they managed to fit a full kitchen and accessible bathroom into a relatively small footprint. They even handled the tricky zoning variances required for our specific lot in Old Oakville. The workmanship on the custom cabinetry and tiling is second to none, making it a beautiful addition to our backyard.
After deciding to turn my bungalow into a legal duplex, I chose Built By Pros for their solid reputation in the Halton area. They successfully reconfigured the main floor and basement into two completely independent units with separate HVAC and electrical panels. The project took about five months, and they maintained a very clean site throughout, which my neighbors appreciated. I was particularly impressed with the quality of the finishings they recommended for a high-end rental.

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.