Garden Suites, Laneway Houses & Multiplex Conversions — Toronto GTA

Multi-Unit & ARU Conversions Services in Toronto GTA

Looking to add an Additional Residential Unit (ARU), garden suite, laneway house, or convert your Toronto home into a legal multiplex? RenoHouse is a Toronto and GTA general contractor specializing in ARU and multi-unit construction under the post-Bill 23 zoning framework. We build detached garden suites under Toronto Bylaw 89-2022 and 849-2025, laneway houses under the 2018 Changing Lanes bylaw, and convert single-family homes into 2-, 3-, and 4-unit multiplexes under Bylaw 474-2023 — all as-of-right where the lot qualifies. Our scope is end-to-end construction project management: site assessment, permit drawings (in partnership with licensed OAA architects and BCIN designers — design is not in-house), Committee of Adjustment representation when required, full construction including foundation, framing, mechanical, finishes, ESA-permitted electrical, plumbing under trade permit, fire separation per Ontario Building Code, and final occupancy. Typical garden suite projects run $300K–$450K all-in over 8–12 months; laneway houses $400K–$600K over 10–14 months; multiplex conversions $200K–$500K over 6–18 months depending on scope. We coordinate with City Planning, Toronto Building, Urban Forestry, Toronto Water, ESA, and Toronto Hydro. Serving Toronto, Mississauga, Brampton, Vaughan, Markham, Richmond Hill, Oakville, Burlington, Etobicoke, Scarborough, North York, and all GTA communities. Honest scope: we are renovation and construction specialists — for complex architectural design, heritage permits, or planning appeals we work with named partners. We do NOT provide mortgage or financing services; we do refer clients to mortgage brokers and lenders familiar with ARU construction draw products. Call 289-212-2345 for a free site-assessment consultation.