

Maximizing your investment property value through expert structural redesign and high quality secondary suite construction.
We navigate the complex City of Toronto zoning bylaws to ensure your North York multi-unit conversion is 100% legal. This includes managing all CAD drawings, engineering reports, and permit applications to prevent future legal issues. A legal suite significantly increases your property's resale value compared to unpermitted work.
Our layouts prioritize privacy and livability, incorporating advanced soundproofing and independent entrances. In high-demand areas like North York, these features allow you to attract stable, long-term tenants who are willing to pay a premium for a quiet, high-quality home. We focus on maximizing every square inch of the footprint for functional living.
We select durable, high-impact materials that withstand the rigors of rental use while providing a luxury feel. By optimizing the space for maximum unit count or bedroom density within legal limits, we help you achieve the highest possible monthly cash flow. Our experience since 2008 ensures we know which upgrades actually yield the best returns.
We start by analyzing your North York property against current City of Toronto bylaws to determine exactly how many units you can legally build. This step prevents wasted investment on designs that will not be approved, ensuring a clear path forward. We look at parking, green space, and structural capacity during this initial phase.
Our interior designers create detailed layouts that optimize natural light and flow for every unit while meeting all fire safety codes. We handle the submission of architectural and engineering drawings to the North York building department for approval. This critical step ensures your project is built on a foundation of legal compliance.
During construction, we manage all trades to ensure structural alterations, soundproofing, and separate utility installations are done correctly. Our site supervisors, like Bastian or Marco, ensure that North York building inspectors are called at every required milestone to sign off on the work. We prioritize minimizing disruption to you if you are living on-site.
We finish with a comprehensive quality walkthrough to ensure every detail meets our 'Built By Pros' standard. Once the final occupancy permit is issued by the city, your property is officially a legal multi-unit dwelling. We provide you with all documentation and warranties, marking the transition from a renovation project to a profitable asset.
Most residential properties in North York are eligible, provided they meet specific lot frontage, parking, and setbacks defined by the City of Toronto. We begin every project with a thorough zoning review to confirm what is allowed on your specific street. Even if your property has unique challenges, our design team can often find creative ways to meet the building code requirements for ceiling height and egress.
Costs vary based on the current state of your plumbing, electrical, and structural systems, but most professional conversions range from $150,000 to $300,000+ depending on the number of units and finish level. Investing in legal permits and separate utility meters is a significant part of this cost but essential for ROI. We provide a detailed, fixed-price contract after the design phase to ensure there are no surprises during construction.
Typically, the permitting process with the City of Toronto for a multi-unit conversion takes between 3 to 6 months. This includes time for architectural drawings, structural engineering, and the city's internal review cycles. We handle all communications with the North York building department to expedite this process and ensure all paperwork is submitted correctly the first time.
The Ontario Building Code requires a minimum STC (Sound Transmission Class) rating of 50 between separate residential units. In North York, where many homes have older joist systems, we often exceed this by using resilient channels, mineral wool insulation, and double-layer drywall. This high-level soundproofing is the most important factor for maintaining long-term tenant harmony and reducing turnover.
Transform your property into a high-value asset by navigating Toronto's specific legal requirements for basement apartments and garden suites. This comprehensive guide from Built by Pros Inc. breaks down the zoning, permits, and construction standards needed to build a compliant and profitable secondary dwelling.
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 MoreRicardo and his team converted our North York bungalow basement into a stunning legal two-bedroom suite. The project took about 4 months from initial permits to final inspection, and the attention to soundproofing was incredible—we can hardly hear our tenants below us. They used high-quality vinyl plank flooring and custom cabinetry that really elevated the space. It has been 6 months and we've already secured a great rental rate that covers half our mortgage.
I hired Built By Pros to optimize a multi-story property near Bayview Village for three separate units. Their knowledge of North York's specific parking and egress requirements saved me thousands in potential fines and redesign costs. The team was professional, showing up every day until the job was finished in mid-winter. The luxury bathroom finishes they recommended helped me lease the units within one week of completion.
Suzanne's design team helped us transform an old, cramped duplex into three modern, open-concept units. They managed to find space for a third unit we didn't even think was possible by reconfiguring the staircase and utility room. The project was completed on time, and the transition between our living space and the rental units is seamless. Their expertise with City of Toronto permits made a very stressful process much easier for us.

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.