
Transform your Markham properties into high-yield multi-unit dwellings with custom design-build expertise.

We focus exclusively on layout modifications that increase the rental yield and total property valuation in the Markham market. By transforming underused areas into legal living suites, we have seen investors increase their monthly cash flow by as much as 40%. Our design team uses precise CAD mapping to find every available inch of usable space.
Navigating the City of Markham's secondary suite bylaws can be complex, but we handle the entire permitting and engineering process for you. We ensure all firewall separations and egress windows meet the specific safety requirements for multi-unit dwellings. This mitigates the risk of costly work orders or legal disputes with the city later on.
We select finishes that balance luxury with durability to handle the higher traffic of multi-unit buildings in York Region. This includes waterproof luxury vinyl plank flooring and quartz surfaces that can withstand heavy use while maintaining a premium look. Our goal is to minimize your long-term maintenance costs while maximizing tenant retention.
We begin by analyzing your Markham property against local zoning bylaws to determine the maximum number of legal units allowed. This step involves reviewing property surveys and city density requirements to ensure your investment goals are achievable. We identify early on any structural or legal hurdles that might affect your ROI.
Our designers create floor plans that maximize square footage, focusing on 'missing middle' high-density configurations that are popular in York Region. We use CAD drawings to show exactly how furniture and appliances will fit within the new units. This phase ensures we are creating living spaces that aren't just legal, but highly desirable to Markham's tenant market.
We handle the entire application process with the City of Markham's building department, including all necessary structural and electrical engineering sign-offs. This prevents the common pitfall of renovation delays due to incorrect paperwork or non-compliance. Our established relationship with local inspectors helps move the project through the approval stages efficiently.
Construction is managed by our daily supervisors who focus on efficiency to get your units on the market as fast as possible. We perform a final walkthrough and provide you with a full closeout package, including all warranties and maintenance guides for your new systems. Our goal is to leave you with a turnkey investment property that is ready for immediate tenant occupancy.
To be legal in Markham, a secondary suite must comply with the Ontario Building Code and the city's zoning bylaws, which include requirements for minimum ceiling height (usually 6'5"), proper fire separation between units, and at least two forms of egress. You also need to ensure adequate parking is available on-site as per Markham's specific ratios. Built By Pros Inc. handles all the technical drawings and inspections to ensure your multi-unit conversion is fully registered and safe.
We utilize several layers of protection, including resilient channels, specialized acoustic insulation like Roxul, and 'quiet' drywall to minimize sound transmission between units. For floors, we often recommend acoustic underlayments beneath luxury vinyl or tile. These systems are critical in multi-unit properties to ensure tenant privacy and reduce noise complaints, which is a major factor in long-term occupancy success.
Every project in Markham is unique based on the existing structure’s condition, but we provide a detailed, itemized quote after an initial site walkthrough. This quote covers everything from structural engineering and permits to high-end finishes and appliances. Because we favor transparency, we document any necessary change orders in writing so there are no surprises on your final invoice. Typically, a full optimization project involves a significant initial investment but yields long-term capital appreciation.
A standard multi-unit conversion or major optimization typically takes between 3 to 6 months, depending on the complexity of the addition or layout changes. This timeline includes the permitting phase, which in Markham can take 4-8 weeks. We provide a week-by-week construction schedule during our detailed project planning phase so you can manage your rental listings and tenant move-in dates with total confidence.
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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 hired Built By Pros Inc. to convert our large basement in Markham into a legal two-bedroom rental suite. The project took exactly four months, and Ricardo’s team was incredibly professional about keeping the dust contained while we lived upstairs. The custom soundproofing they installed between the floors is so effective we can rarely hear our tenants at all. They also handled all the complex Markham city permits which was a huge relief.
Our three-unit townhome near Highway 7 needed a complete interior overhaul to attract better tenants. Suzanne helped us redesign the kitchens with clever built-in pantry walls that saved so much floor space. The project was finished two weeks ahead of schedule, and we were able to increase our rent by $600 per unit immediately after completion. Their attention to detail on the electrical upgrades was particularly impressive.
After buying an older property in the Cornell area, we worked with Built By Pros to optimize it for three separate units. They added a custom addition to the rear to create a separate entrance that looks like it was part of the original house. The craftsmanship on the exterior siding and the framing was top-notch, and they managed to stay within our budget despite some unexpected foundation issues they discovered. Truly a reliable team.

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.