DESIGN | RENOVATION | BUILD
Multiplex Conversion Experts
SL Designs specializes in multi-unit conversions for both residential and commercial properties. Ready to transform your real estate asset or investment property into long-term, generational wealth? We design and build with your budget in mind—helping you maximize asset equity and cash flow.
About Us
Expert Craftsmanship With the Investor’s Budget in Mind
SL Designs has been delivering high-quality custom construction projects across the Greater Toronto Area for many years. As demand for multi-unit housing has grown, we’ve evolved into trusted specialists in multiplex conversions for both residential and commercial properties, successfully delivering a wide range of residential rental suites.
We help homeowners and real estate investors unlock the full potential of their properties by adding rental units through smart interior reconfigurations, vertical top-ups, extensions, and laneway or garden suites. Being investors ourselves, we understand how critical timelines, budgets, and ROI are—and we build with long-term value and cash flow at the core of every decision.
The SL Designs team is committed to transparent project management, collaborative planning, and tailored construction solutions that turn properties into scalable, sustainable investments.
Services
Our Multiplex Conversion & Building Services
WHERE WE SERVE
Serving Toronto’s Downtown Core
SL Designs transforms single-family homes and underutilized commercial buildings into high-quality multi-unit residential properties across Toronto’s neighborhoods. We’re committed to building smarter housing solutions for Ontario’s growing communities. Connect with our experienced multiplex conversion team—architects, general contractors, and project managers—and start expanding housing the right way.
- East Danforth
- Liberty Village
- Kensington Market
- Trinity-Bellwoods
- Corso Italia
- Cabbagetown
- Parkdale
- The Junction
- The Annex
- Oakwood
- Forest Hill
- Rosedale
- St. James Town
- Distillery District
- The Beaches
- Davenport
- East York
- York
- Leslieville
- Leaside
OUR EXPERTISE
Demolition · Excavation · Footings · Concrete Foundations · Concrete Flatwork · General Contracting · Framing · Drywall · Taping · Underpinning · Millwork · Custom Home Design · Laneway Suite Design · Window Installation · Kitchen Renovations · Bathroom Renovations · Flooring · Stucco & Popcorn Ceiling Removal · Floor Tile Installation · Hardwood Floor Installation · Painting & Staining · Home Insulation · Landscaping · Roof Installation · Door Installation · HVAC Installation · Plumbing · Architectural Design
Where We Serve & What We Do
We proudly serve Toronto’s downtown core and surrounding neighbourhoods, delivering end-to-end multiplex conversion and construction services. From planning to execution, SL Designs builds scalable housing solutions that add long-term value to growing communities.
How We Work
A Smarter Way to Build & Convert
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Discovery & Feasibility
We assess your property, goals, and budget to determine the best conversion or build strategy before moving forward.
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Design & Planning
Our architects and engineers develop compliant, space-efficient designs while managing zoning, permits, and approvals.
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Build & Project Management
From demolition to final finishes, our experienced team manages construction timelines, quality, and on-site coordination.
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Delivery & Value Growth
We deliver a finished, rental-ready property designed to maximize equity, cash flow, and long-term investment performance.
Testimonials
Testimonials from Our Trusted Clients
Homeowner
“From planning to permits to construction, everything was handled professionally. SL Designs understood our budget and helped us maximize the value of our property without surprises.”
Business Owner
“We converted an old commercial space into modern rental units, and the results exceeded expectations. The process was clear, efficient, and focused on long-term returns.”
Property Developer
“What stood out most was their communication and project management. SL Designs treated our project like their own investment and delivered a high-quality, rental-ready finish.”
Green Building Advocate
FAQs
We’re here to help answer your questions about multiplex conversions. If you don’t find everything you’re looking for on our website, simply share your contact information below and one of our SL Designs specialists will be happy to assist you.
Can’t find the answer you’re looking for? Please contact with our customer service.
Ready to Maximize Your Property’s Potential?
Turn your property into a high-performing, multi-unit investment with SL Designs. Whether you’re planning a multiplex conversion, renovation, or new build, our expert team is here to guide you from concept to completion—on time and on budget.
“SL Designs made our multiplex conversion smooth from start to finish. The team was transparent, on schedule, and delivered exactly what they promised. Our rental income increased immediately.”