Bathroom renovations in London
A bathroom in London is one of the cleaner projects to run, because the city's heritage framework is concerned with the outside of buildings and a bathroom lives entirely inside one.
That framework matters in Old North, Wortley Village and the Woodfield areas, where a heritage alteration permit is required for exterior alterations on properties in a conservation district or designated individually. For a bathroom the only realistic trigger is a new or enlarged window, and where that is part of the plan it is worth establishing early because it runs on a different timetable than a counter approval. Everything behind the wall proceeds under the building permit alone.
What is behind the wall is the actual variable. The century houses in Old North have been plumbed and re-plumbed across a hundred years, and opening one up tends to reveal a layered history: a drum trap still in place, a stack that is undersized by current standards, a vent terminating somewhere it should not, copper spliced into something older. All of it worked. None of it can be rebuilt as found, because what gets replaced has to meet today's code. That correction is the honest reason a century-house bathroom costs more than the same square footage in a newer part of the city, and pricing it as though the rough-in will be reusable is how a project acquires a change order in week two.
At the other end, Masonville and Sunningdale bathrooms are specification exercises. The rough-in is modern, so the budget goes into what is visible: a curbless base, a larger glass panel, heated floor, a freestanding tub. A curbless shower is a question of joist direction and depth rather than of ambition, and it gets confirmed before it appears in a drawing.
Ventilation is worth attention in the older houses. A fan sized for the room and ducted outside, not into an attic, is what keeps moisture out of a wall assembly with very little vapour control in it.
The permit line is the same across the city: a fixture moved to a new position changes the drain and vent layout and needs a permit under By-law B-7.
In the pre-war stock the constraint is usually structural rather than decorative. Moving a toilet means moving a three-inch drain, that drain needs fall along its whole run, and in a house framed with shallow joists there is often not enough depth in the floor to give it that fall without cutting into a joist further than the Code allows. That is the point at which a layout change becomes a framing job. It is entirely doable and it is regularly the right decision, but it is worth knowing before a plan is drawn around a fixture that cannot go where it is drawn.
We also handle the kitchen renovations and basement work that go alongside, and cover the rest of our London service area.
East along the 401 the older housing sits in a different municipal process, covered on bathroom renovations in Cambridge. Further east the tri-city stock runs postwar on average, dealt with on bathroom renovation cost in Kitchener.
