Lake Couchiching real estate: frequently asked questions

Three. The City of Orillia holds the south end, the Township of Severn the west shore (including Westshore), and the Township of Ramara the east shore from Atherley north. Both townships list Washago, at the north end, as a settlement area.

Severn's Westshore water report gives a surface area of 44.75 km², a maximum depth of 12 m and a mean depth of 6 m. The lake is up to about 16 km long and 5 km wide.

The east shore, in Ramara. Lots there face west across the lake. West-shore lots in Severn face east and get morning sun.

Some of it. Most of Orillia is on city services, and Severn's Westshore area has township water drawn from the lake and a wastewater plant. Most other shoreline in Severn and Ramara is on private wells or lake-drawn water and septic. Confirm for each address.

Only after proper treatment. The Province says surface-water-influenced supplies need effective filtration and treatment; a typical system uses fine filtration plus UV. Test regularly through the free Public Health Ontario bacteriological program.

Not under its discretionary program, which council suspended for five years on June 17, 2026. Mandatory inspections continue in wellhead and intake protection zones. Get a private inspection when you buy.

Ramara's mandatory five-year program covers properties within 100 m of the Lake Simcoe shoreline and watershed and near municipal wells and intakes. Its page doesn't name Couchiching, so check the specific property on the Simcoe County GIS layer or email septic@ramara.ca.

Yes. The City inspects every private septic system every five years. Sewer-connected properties are exempt.

Almost certainly. Orillia, Severn and Ramara require building permits for shoreline structures, and depending on the lot you may also need Parks Canada, Ministry of Natural Resources, LSRCA or Transport Canada approval. Agency approvals usually come first.

Parks Canada permits don't. New owners apply in their own name, though previously permitted work is likely to be permitted again. Parks Canada also says no in-water structures are grandfathered.

It depends on the municipality and agency. Severn's zoning and Parks Canada's policy both use an 8 m by 10 m envelope next to shore, 2.4 m width and 45 m² total area; Parks Canada gives 32 ft as the maximum length. Ramara and Orillia have their own setbacks.

In Severn, 20 m from navigable water for most buildings. In Ramara, 15 m from the high water mark, plus flood and erosion hazard limits. In Orillia, check zoning through a zoning certificate. Site-specific exceptions can differ.

Only on part of it. LSRCA's jurisdiction excludes the City of Orillia, and Severn isn't a member. Ramara is, and properties in LSRCA-regulated areas need an LSRCA permit before applying for a township building permit.

Parks Canada draws Lakes Simcoe and Couchiching down after the boating season to leave room for snowmelt and spring rain. Levels usually peak between April and June and are lowest in late fall and winter, with a typical annual swing of about 0.4 to 0.5 m.

Levels can run high in wet springs. In March 2026, Parks Canada opened the Lock 42 discharge valves because Simcoe and Couchiching were higher than normal, and flood warnings were issued for the Severn and Black rivers around Washago in spring 2025 and 2026. Ask about each property's history.

No. They connect through the Atherley Narrows, an open channel with a fixed Highway 12 bridge (7.0 m clearance) and parts of the Mnjikaning Fish Weirs National Historic Site on the bottom.

Yes. Go through Lock 42 at Washago and down the Severn River via Lock 43 Swift Rapids, the Big Chute Marine Railway and Lock 45 at Port Severn, about 49 km from Lock 42. Watch for the CN swing bridge above Lock 42, with about 3.96 m clearance when closed.

On Ontario waters, 10 km/h within 30 m of shore, with exceptions such as towing a skier straight out from shore and operating in buoyed channels. Parks Canada also posts speed zones along the Trent-Severn's channels.

No. The Port of Orillia offers 220 transient slips from May through September but no seasonal dockage. Look at private marinas for a season-long slip.

Ontario advises at least 20 cm of clear blue ice for snowmobiles and 30 cm or more for light vehicles, doubled for white ice. The Red Cross recommends at least 15 cm for walking or skating in small groups. Avoid the Narrows and the Washago end.

Couchiching is in Fisheries Management Zone 16, where huts must be removed by March 15 and always before break-up. Most huts must be registered, free of charge.

Neither is better in general. Simcoe is about 16 times larger and much deeper, with bigger views and bigger waves. Couchiching is calmer and links directly to the Severn River. Compare specific shorelines.

There's no single best month. Spring and summer show the water, dock and lot at their best, while fall and winter listings can face less competition. Whatever you choose, take photos in summer, before the fall drawdown.

Permits for the dock, boathouse and shoreline work, septic records and inspection reports, recent water tests, the survey and your high-water history. Having them ready shortens conditions.