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Rental Conversions & Multiplexes
Explore expert guidance on rental conversions, legal basement apartments, duplexes, triplexes and multiplex projects in Toronto and the GTA. Learn about architectural drawings, zoning, building permits, fire separations, plumbing, HVAC, electrical requirements, construction costs and the complete conversion process with 416 Construction.


How Many Rental Units Are Allowed on My Toronto Property? 2026 Complete Guide
Wondering how many rental units are allowed on your Toronto property? Learn the 2026 rules for duplexes, triplexes, fourplexes, sixplexes, garden suites and other multiplex rental conversion opportunities.
416 Construction
1 day ago21 min read


Knob and Tube Wiring During a Home Renovation: What Toronto Homeowners Need to Know
Knob and tube wiring does not automatically make a home unsafe, but it should be professionally assessed before renovating. Opening walls provides an opportunity to inspect, replace and modernize an older electrical system.
416 Construction
4 days ago3 min read


What Types of Properties Are Best for a Rental Conversion in Toronto?
Three-storey semi-detached homes with basements, multiple entrances and rear laneway access are often excellent candidates for rental conversion in Toronto. Using a completed Ossington Avenue project as a case study, 416 Construction explains which property features can improve layout, construction feasibility and long-term rental potential.
416 Construction
Aug 15 min read


How Much Does Basement Underpinning Cost in Toronto? 2026 Complete Guide
Basement underpinning in Toronto can transform a low, unusable basement into valuable living space. This 2026 guide explains realistic costs, permits, engineering requirements, construction stages and the factors that affect your final budget.
416 Construction
Jul 2914 min read


What Is the Difference Between Double- and Triple-Pane Tempered Glass?
Double-pane and triple-pane tempered glass are not the same product. Double glazing uses two panes, while triple glazing uses three. Learn how they compare for energy efficiency, safety, condensation, noise reduction, cost and custom home construction in Toronto.
416 Construction
Jul 2711 min read


How Much Does It Cost to Remove Knob and Tube Wiring in Toronto?
Removing knob and tube wiring in Toronto may cost approximately $8,000 to more than $30,000, depending on the size of the home, accessibility, number of circuits, wall conditions and whether the work is completed as part of a larger renovation.
416 Construction
Jul 175 min read


Who Does Rental Conversions in Toronto? Choose 416 Construction for Complete Design-Build Service
Looking for a rental conversion contractor in Toronto? 416 Construction provides complete design-build services for legal basement apartments, duplexes, triplexes and multi-unit conversions. Our team handles feasibility reviews, architectural drawings, permits, engineering and construction under one coordinated process.
416 Construction
Jul 138 min read


Transform Your Home into a Legal Duplex: Key Steps and Considerations
As housing prices continue to climb in Toronto and the Greater Toronto Area (GTA), many homeowners are exploring ways to make their properties more valuable and functional. One popular option is converting a single-family home into a legal duplex. This transformation can provide steady rental income, accommodate extended family, and boost your property's market value. But turning your home into a legal duplex involves more than just adding a second kitchen.
416 Construction
Jun 296 min read
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