Renovation & Construction in Richmond Hill

Richmond Hill Housing Stock, Neighbourhood by Neighbourhood

The oldest fabric is along Yonge Street in the historic village core, where some buildings are designated or listed on the City's Municipal Heritage Register. To the west lies the Mill Pond area, where the City notes that the Upper East Don runs down the west side of Richmond Hill past Mill Pond itself. Many of the older houses here have reached the age where wiring, supply piping, windows and insulation come due together, so owners usually get more value from one coordinated renovation than from a series of single-room projects.

South Richvale and Bayview Hill are known for large detached homes. The City's 2022 infill paper notes that older subdivisions with larger lots are under pressure to be rebuilt with bigger houses, which is why our South Richvale area page concentrates on rebuilds. In a large house that is a few decades old, the framing is often sound while original ensuites, windows and furnaces approach the end of their service life, and a closed-off layout is a common starting point for a kitchen renovation in Richmond Hill.

The north is a different landscape. Oak Ridges surrounds Lake Wilcox and Bond Lake, which the City describes as kettle lakes, and Jefferson sits beside the Jefferson Forest in the Rouge River system. Here the house is seldom the main constraint. Grading, groundwater, mature trees and moraine or TRCA regulation shape what can be built, so basements, rear additions and pools need site investigation before design starts.

Permits and Approvals in Richmond Hill, in Practice

Building permits are filed through the City's online portal in two stages: a pre-screening submission that staff review against the requirements, then a formal application that must be filed and paid within two weeks of the City's confirmation email. Once a house application is complete, the City's service charter targets a decision within 10 business days. Our guide to building permits in Mississauga, Vaughan and Richmond Hill compares the three municipalities side by side.

The slower part is what must exist before that application is accepted. Infill homes and additions over 400 sq ft of footprint need a site alteration permit with a grading and servicing plan from a professional engineer or Ontario Land Surveyor. Lots under site plan control need site plan approval instead, and properties in TRCA's regulated area need a TRCA permit or clearance, because the City cannot legally issue a building permit without one. Sequencing these is most of what a general contractor in Richmond Hill does before mobilizing.

Zoning is in transition. Council passed Comprehensive Zoning By-law 93-25 on September 24, 2025, and on July 2, 2026 the Ontario Land Tribunal confirmed its unappealed portions in force; some sites remain under appeal, and some 2026 variance decisions still applied former by-laws such as 66-71 and 1703. Designs that do not comply go to the five-member Committee of Adjustment, which sits on Thursday evenings. The 2026 minor variance fee is $4,826, and decisions become final only after a 20-day appeal period.

Trees, Ravines, the Moraine and Heritage in Richmond Hill

Tree Preservation By-law 19-25 requires a permit before anyone removes or injures a private tree measuring 15 cm or more in diameter at 1.4 m above grade, and the City counts any encroachment into a tree protection zone as injury. Those zones range from 2.0 m for a small tree to 6.0 m for one 91 to 100 cm across, which is often enough to decide where a foundation goes. Approved removals carry one to seven replacement trees, or cash-in-lieu of $945 per tree in 2026.

Richmond Hill holds the headwaters of the Humber, Don and Rouge river systems, so valley lots in older areas and lakeside lots in Oak Ridges often fall within TRCA's regulated area under Ontario Regulation 41/24. New homes, replacement homes and additions there are development activity needing a TRCA permit, sometimes with a geotechnical slope stability assessment. On the moraine, the Oak Ridges Moraine Conservation Plan (O. Reg. 140/02) sets out how the moraine's ecological and hydrological features and functions are to be protected, and the City requires a pre-consultation meeting before site alteration on moraine properties.

Heritage rules are narrower than many owners expect. Gormley holds the City's first Heritage Conservation District, in effect since December 13, 2009; every structure inside its boundary is designated, and changes are managed under the district plan. Elsewhere, designated properties need written approval for changes to their heritage attributes, while owners of listed properties must notify the City before demolition, after which Council has 60 days to decide on the property's heritage value.

What Homeowners Are Building in Richmond Hill

A 2022 City technical paper on residential infill mapped a decade of single and semi-detached building permits and found them concentrated in the south-west, between Elgin Mills Road and Highway 7, with another cluster along King Road and around Lake Wilcox. The paper links that pattern partly to long-approved subdivisions only now being built and partly to rebuilding, noting that older subdivisions with larger lots face pressure to be redeveloped with larger houses. Those two pressures point to two kinds of project: custom homes and knockdown rebuilds on older lots, and second-storey and rear additions where the existing house is worth keeping.

Lower levels are the other major category. By-law 93-25 permits up to three additional residential units on a lot, to a maximum of four dwelling units in total, which has made legal basement apartments a practical way to house extended family or add rental income. In established detached houses, a kitchen that opens up the main floor is a common goal, often paired with a new primary ensuite and updated mechanical systems.

Cost Drivers Specific to Richmond Hill

House size is the first driver. Many Bayview Hill and South Richvale homes are large enough that a full home renovation at the GTA full-gut rate of $200 to $450 per square foot passes $450K before finishes are chosen, and a custom home at $350 to $650 per square foot climbs quickly with every added thousand square feet. Additions run $400 to $700 per square foot of new space because they tie into an existing roof, structure and mechanical system. Our Toronto and GTA renovation cost guide breaks these ranges down.

The second driver is the approvals file. Infill and addition projects carry a grading and servicing plan, an arborist report where trees are affected, possibly a TRCA submission and slope study, and refundable site alteration securities that the City scales by frontage, from $20,000 on lots under 15 m to $55,000 on corner lots. Finish level matters as well: a standard bathroom runs about $15,000 to $25,000, while a primary ensuite renovation with custom tile, heated floors and frameless glass reaches $35,000 to $60,000+.

How Nexon Runs a Richmond Hill Project

Nexon Build is led by three founding partners with more than 70 years of combined experience. Kash Varjavandi, our master builder, manages timelines and trades and keeps clients informed; David Bocharov brings over 20 years in civil construction, including high-rise and multi-unit residential work; and Fred Shik makes sure HVAC, plumbing and mechanical systems are designed and installed right. Projects run on fixed-price contracts, with schedule, photos, selections and change orders tracked in Buildertrend, and every stage built to the Ontario Building Code and inspected by the City.

We work across Toronto and York Region, and our completed projects are in Toronto and Aurora, including a renovation and rear extension in Aurora. Ground-up custom homes are enrolled in Tarion; renovations carry our own workmanship warranty. Owners who want design and construction under one contract can use our design-build service in Richmond Hill, and anyone can start with a free online estimate or a call to (647) 829-0272.