Oak Ridges sits on the rolling ground of the Oak Ridges Moraine at the top of Richmond Hill, around Lake Wilcox, Bond Lake and a string of smaller kettle lakes. Its houses run from former summer cottages and post-war bungalows to subdivision homes and freehold townhouses, and many lots slope toward a walkout, hold large protected trees or border wetlands that TRCA regulates.
From a Yonge Street hamlet to Richmond Hill's north end
Oak Ridges began as a settlement on Yonge Street and was known by that name by about 1840. Its lots were split between King and Whitchurch townships until 1971, when York County became the Regional Municipality of York and Richmond Hill annexed the area. Pieces of the older story are still easy to find. Bond Lake was a recreation park owned by a Toronto street railway from 1899 to 1929 and is now protected conservation land, and at King Road and Bathurst Street the crossroads once called Love's Corners, later Temperanceville, keeps the church its congregation built in 1897.
Cottages followed. By the 1920s Toronto families were putting up summer places around Lake Wilcox, and house building around the lake picked up in the 1950s. The conservation authority describes the lakeside streets as mostly older cottage-style homes mixed with newer development, and on North Lake Road or Sunset Beach Road a modest frame house can sit next to a large brick or stone rebuild. If you own one of the older houses and want to keep it, the renovation starts with an honest look at how it was made ready for winter and what each later owner changed. Homes further south, from the village core to the newer east-side subdivisions, are covered on our Richmond Hill page.
Subdivisions laid out between kettle lakes and woodlots
Subdivision building reached the north-west of Oak Ridges in the second half of the 1980s, carried on through the 1990s, and the biggest wave of construction came after 2000. The Fontainbleu subdivision north of Lake Wilcox filled with larger detached homes on 50- and 60-foot lots, while Kettle Lakes Club, near Bayview Avenue and Bethesda Side Road, launched its freehold two- and three-storey townhouses in 2014. Structurally, most of these houses are still young. What tends to date first is the kitchen, the ensuite and a lower level the builder left unfinished.
The land explains why so many of those lower levels open onto the yard. The moraine is made of silt, sand and gravel laid down by glacial meltwater and left as a landscape of knobs and kettle hollows, with high ground here rising past 300 metres. Streets climb and dip, and plenty of lots drop away behind the house, so the basement meets the backyard at grade. Richmond Hill treats cutting a new basement walkout as a permit type of its own, separate from finishing the space inside. Our basement finishing page explains how we build below grade.
Moraine and wetland rules to settle before the design
Large subdivision proposals on Richmond Hill's moraine lands drew a wave of public opposition in 1999, and in 2001 Ontario passed the Oak Ridges Moraine Conservation Act; the conservation plan made under it still shapes land use here. The City's moraine zoning places some land in natural core, natural linkage or key natural feature zones, where the permitted uses are narrower than on a typical residential lot. Between Bathurst and Leslie streets, north of Jefferson Side Road, the 604-hectare Oak Ridges Corridor Conservation Reserve is managed by the Toronto and Region Conservation Authority (TRCA), and backyards that border it or one of the lakes are the ones most worth checking against TRCA's regulated area mapping.
Since April 1, 2024, conservation authorities have issued permits under Ontario Regulation 41/24, which regulates a 30-metre band around wetlands. TRCA's permit counts as applicable law, so on a regulated lot the City cannot issue a building permit for a new deck or an addition until TRCA has granted its own permit or a clearance. On steep ground TRCA can also ask for a slope stability assessment or a letter from a structural engineer. At the estimate we look your address up on TRCA's regulated area map with you and, if a permit is needed, coordinate the applications with whoever prepares the drawings.
How we organize work on a sloping Oak Ridges lot
- Getting materials down the hill. When the only route to a walkout runs along a steep side yard, we plan how drywall, tile and cabinets reach the lower level and how debris comes back up without rutting the lawn.
- Footings dug before the freeze. Posts for a raised deck and the stair down to a walkout patio go into ground that falls away from the house, so we book that digging for the months before frost and keep interior finishing for the winter.
- Trades listed in the estimate. Finishing a walkout often brings new circuits, a bathroom and sometimes a gas fireplace into one job, so the estimate shows which parts a licensed electrician, plumber or gas fitter handles and where an engineer signs off.