
Professional garden suite services in Richmond Hill and York Region. Licensed, insured, free estimates.
Last updated:
Richmond Hill permits detached garden suites under By-law 130-2019, with a minimum lot area of 400 square metres and a maximum unit size of 89 square metres — notably larger than Toronto's 60 square metre limit. Konstruction Group provides the framing, insulation, and drywall for garden suite construction across Oak Ridges, Jefferson, Bayview Hill, and Mill Pond.
Richmond Hill permits Additional Residential Units (ARUs) including detached garden suites under By-law 130-2019. Properties must have a minimum lot area of 400 square metres to qualify. The maximum garden suite footprint is 89 square metres (approximately 958 square feet) — notably larger than Toronto's 60 square metre limit. Richmond Hill encourages gentle densification through ARUs as part of its Official Plan, supporting the province's housing supply goals. A building permit is required through the City of Richmond Hill and all construction must meet Ontario Building Code standards. Oak Ridges and Jefferson feature particularly large lots that are well-suited for garden suites, often with rear yards deep enough to accommodate the structure with room to spare.
Richmond Hill offers a unique combination of generous lot sizes and a higher maximum garden suite footprint than Toronto. At 89 square metres, Richmond Hill's allowable footprint gives homeowners roughly 50% more floor area than Toronto's 60 square metre cap — enough for a comfortable two-bedroom unit. Neighborhoods like Oak Ridges and Jefferson feature lots that often exceed 600 square metres, providing ample space for a garden suite plus rear yard setbacks. Bayview Hill and Richvale offer similar conditions. Richmond Hill's location along the Yonge Street corridor, with access to the Langstaff and Richmond Hill GO stations, makes garden suites appealing to renters commuting into downtown Toronto. The town's family-oriented neighborhoods also make garden suites attractive for multi-generational housing, where an aging parent or adult child can live independently on the same property.
A one-bedroom garden suite in Richmond Hill rents for approximately $2,100 to $2,600 per month based on 2025 CMHC and rentals.ca data for York Region. That translates to $25,200-$31,200 in annual gross rental income. Against construction costs of $250,000-$475,000, a Richmond Hill garden suite delivers a gross rental yield of roughly 7-8% at midpoint costs. Richmond Hill's 89-square-metre footprint allowance — 50% larger than Toronto's cap — means homeowners can build spacious two-bedroom units that command rents at the upper end of the range, improving the overall return on investment.
Provide your architect's plans and engineering drawings. We confirm the footprint falls within Richmond Hill's 89 sq m cap, verify the lot meets the 400 sq m minimum under By-law 130-2019, and map out every steel beam and column location.
Typical timeline: 1-2 daysWe visit your Richmond Hill property to assess rear yard depth, side-yard access for material and equipment delivery, and terrain grade. Oak Ridges lots may have moraine-related slopes that affect staging. A detailed, line-item quote follows the visit.
Typical timeline: 3-5 business daysWith the foundation inspected and approved, we frame the full structure — floors, exterior and interior walls, and roof. Richmond Hill's 89 sq m allowance often means larger trusses and longer wall runs than Toronto builds, and we plan material deliveries accordingly.
Typical timeline: 2-4 weeksAfter mechanical and electrical rough-ins pass inspection, we apply the insulation specified in your drawings — spray foam on the exterior envelope for maximum energy efficiency, and batt or blown-in on partitions and ceiling cavities in the Richmond Hill unit.
Typical timeline: 3-7 daysEvery wall and ceiling is boarded, joints are taped and finished to Level 4, and fire-rated assemblies are installed per code. The Richmond Hill garden suite is left clean and paint-ready for your interior finishing crew.
Typical timeline: 1-2 weeksYes, Richmond Hill permits Additional Residential Units (ARUs) including detached garden suites under By-law 130-2019. Your property must have a minimum lot area of 400 square metres, and the garden suite cannot exceed 89 square metres. A building permit and Ontario Building Code compliance are required.
Complete garden suite construction in Richmond Hill typically costs $250,000-$475,000+ depending on size and finishes. Richmond Hill's larger maximum footprint (89 sq m vs Toronto's 60 sq m) means you can build a bigger unit, which increases total cost but also potential rental income. Our scope (framing, insulation, drywall) runs $15,000-$30,000 depending on size.
Richmond Hill allows garden suites up to 89 square metres (approximately 958 square feet), which is significantly larger than Toronto's 60 square metre limit. This is enough space for a comfortable two-bedroom unit with a full kitchen, bathroom, and living area.
Your property must have a minimum lot area of 400 square metres to be eligible for a garden suite under Richmond Hill's By-law 130-2019. Many properties in Oak Ridges, Jefferson, and Bayview Hill exceed this threshold. Setback and lot coverage requirements also apply.
Overall construction typically takes 6-12 months including design, permits, and all trades. Our scope (framing, insulation, drywall) takes 4-8 weeks once the foundation is complete. Permit timelines in Richmond Hill vary based on application completeness and municipal review capacity.
Looking for garden suite services across the GTA? Visit our main Garden Suite Toronto page for comprehensive service information, pricing, and portfolio.
Contact us today for a free consultation and estimate on your project.
Request Quote Online(416) 901-6020Contact Konstruction Group today for professional garden suite services in Richmond Hill and the GTA.
Get a Free Quote