
Transform your single family home into a high yield multi unit residence with Built By Pros.



Proud to serve communities throughout Richmond Hill, ON
We navigate the complex web of Richmond Hill's OPA 58 and 59 amendments to ensure your property qualifies for maximum density. Our team manages the entire Committee of Adjustment process if variances are needed for setbacks or parking in tight-knit neighborhoods like Richvale North. This proactive approach prevents costly work-stop orders and ensures your conversion is 100% legal for insurance and resale purposes.
Safety is our primary concern when creating multi-family dwellings. We utilize Type X drywall assemblies, resilient channels, and specialized fire-caulking to exceed Ontario Building Code requirements for life safety between units. This attention to detail significantly reduces noise transfer between tenants, which is a major factor in tenant retention and long-term property management success.
Our in-house design team, led by Suzanne Morgan, works to find the 'highest and best use' for every square foot of your Richmond Hill property. Whether it's carving out a third unit in an oversized detached garage or optimizing an existing basement layout in Westbrook, we focus on layouts that command premium rents. We help you balance renovation costs against potential cap rates to ensure a successful financial outcome.
We conduct a thorough audit of your property against the Richmond Hill Official Plan and local parking requirements. This step investigates if the lot depth and width in areas like Richvale North can accommodate the density you desire. We identify any potential hurdles early to save you time and money.
Our designers create a comprehensive permit package including fire separation details, structural changes, and mechanical layouts for multi-zone heating. We submit these to the Richmond Hill building department and act as your agent throughout the review process. This ensures technical compliance with the Ontario Building Code before construction starts.
Once permits are secured, we begin the 'unseen' but critical work: upgrading electrical services to 200+ amps and ensuring water mains can support multiple showers simultaneously. We also install required fire suppressors and sound-dampening insulation. These core infrastructure improvements are the foundation of a safe, high-quality multiplex.
We complete the high-traffic finishes, kitchens, and bathrooms for each individual unit using durable materials chosen for longevity. Our team facilitates all municipal inspections during and after the build. Finally, we hand over a fully legal, occupancy-ready multiplex that is ready to start generating income on day one.
Discover the best commercial renovation companies in Oakville to transform your business space. Learn why Built by Pros Inc. leads the pack in providing high-quality, efficient office and retail transformations.
Deciding between a major home renovation and a total rebuild is a significant challenge for East York homeowners. This guide explores why many are choosing to start fresh with custom builds to maximize property value and modern efficiency.
Discover the essential secrets to successful home renovations in East York, drawn from 18 years of local experience. Learn how to navigate aging infrastructure, zoning complexities, and budget planning to transform your property into a modern masterpiece.
Discover the true meaning of aging in place and how strategic home modifications can help you maintain independence. Learn how to transform your current residence into a lifelong haven through professional planning and accessible design.
Navigating the unique zoning and structural challenges of East York requires more than just a hammer; it requires deep local knowledge. Learn from the costly mistakes we've seen others make regarding height restrictions and older home mechanicals.
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 MoreWe have the ADA design training in house to ensure your home is ready for your golden years , even when your are not.
Learn MoreBuilt By Pros helped me convert my bungalow in Lake Wilcox into a legal duplex with a secondary garden suite. The project was massive, involving a lot of structural excavation for the new entrance, but Ricardo's crew kept the site incredibly clean. They finished the 1,200 sq ft basement unit and the exterior shell in roughly 5 months, right on schedule. The quality of the fire-rating work gave me total peace of mind as a new landlord.
We wanted to turn our home in Oak Ridges into a triplex so our adult children could have their own space while we stayed in the main unit. Suzanne's design for the separate entrances was brilliant; you can't even tell it's a multi-unit from the street, which was important to us. They handled all the tricky Richmond Hill permits and the 200-amp electrical upgrade without a hitch. The transition to multiple units has tripled our property's utility.
I hired Built By Pros for a multiplex conversion in Richvale North. They dealt with some very specific zoning challenges regarding our lot coverage and parking requirements. The communication from Bastian, the site supervisor, was daily and transparent. We converted a single-family home into three beautiful rental units using high-end materials like quartz and custom cabinetry from Aya. Highly recommend them for anyone looking for a stress-free conversion.

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.