Knockdown & Rebuild Infill Homes · Kitchener
Knockdown and Rebuild Infill Homes in Kitchener and Waterloo
In a lot of mature Kitchener neighbourhoods the lot is worth more than the house on it. A rebuild keeps the street, the trees and the school, and replaces the part that no longer works.
Knockdown and rebuild is the most common kind of custom home project inside Kitchener and Waterloo now. The pattern is familiar: a family loves the neighbourhood, the lot is big, the trees are old, and the house is a 1950s bungalow or a 1960s side-split with low ceilings, small rooms, an original electrical service and a basement that leaks every spring. Renovating it means paying to fix a house that will still have the wrong layout. Starting over means a house built for how people live now, on a lot they could not buy again.
It is also a different project from building on a vacant lot, and the differences are all at the front end.
Renovate or rebuild: how to decide
This site is about new homes, so you might expect the answer to always be rebuild. It is not. The rebuild case gets strong when several of these are true:
- The layout is the real problem, and fixing it means moving most interior walls.
- You want a second storey, and the existing foundation and framing were never designed for one.
- The foundation has serious water or structural problems.
- The electrical, plumbing, heating and insulation all need replacing anyway.
- The ceilings are low and the basement height is poor.
If only one or two apply, a renovation contractor is probably the better call and we will say so. If most of them apply, you are often paying close to new-build money for a result that is still compromised.
What the lot allows, before anything else
The biggest mistake on infill is designing the house you want and then checking whether the lot will take it. Do it the other way round. Kitchener and Waterloo each have their own zoning by-law, and for your specific lot it sets the front, side and rear setbacks, the maximum height, lot coverage, parking requirements and, in some areas, extra rules for infill that are meant to keep new houses in scale with the street. Some areas are also inside a heritage conservation district, which adds design review. The zoning information is available through the City of Kitchener and the City of Waterloo.
If the design needs a little more than the zoning allows, a minor variance through the Committee of Adjustment is sometimes possible. It adds time and neighbours get notice and a chance to comment, so it should be a deliberate choice, not a surprise discovered at permit review.
A current survey is the other must. Old houses often sit on surveys that are decades out of date, and a fence or driveway that has been in the wrong place for forty years is worth finding now.
Demolition done properly
- Demolition permit. Taking down a house requires a permit from the municipality. Many people apply for it alongside the building permit so the lot does not sit empty longer than it has to.
- Service disconnects. Gas, hydro, water and sewer all have to be disconnected safely before demolition, and each has its own process with the utility or the city.
- Hazardous materials. Houses from this era can contain asbestos in things like old flooring, pipe insulation, plaster or vermiculite. A proper assessment before demolition, and safe removal where needed, is part of the job.
- Salvage. Some people want to keep a mantel, a door or the old brick. Say so early so it comes out before the machine starts.
Water and sewer laterals
The pipes that connect an older house to the city water and sewer mains may be original. Whether they can be reused for a larger new home, or need replacing out to the property line or beyond, depends on their size, material and condition, and on what the city requires. A camera inspection of the sewer lateral before you finalize the budget is cheap compared to finding a collapsed clay pipe after the new driveway is poured.
Trees
Mature trees are a big part of why people want these lots, and they are one of the hardest things to build around. Roots extend well past the branches. Excavating for a foundation or trenching for services inside that zone can kill a tree slowly over the following years. Boulevard trees belong to the city, and removing or damaging one is not your decision to make. Trees on or near the property line may be partly the neighbour's. Check with the city before the design fixes where the foundation and driveway go, and plan protection fencing for the trees you are keeping.
Neighbours and the street
On infill, the neighbours are a few metres away for the whole build. Good practice is not complicated: tell them before demolition, keep the site fenced and tidy, manage mud on the road, keep trade parking off their driveways, respect the noise hours, and protect the shared fence line. On narrower lots in Rockway, Victoria Hills and Stanley Park, excavation right beside a neighbour's foundation also needs to be planned carefully, and grading has to send water away from both houses.
Where this comes up across Kitchener
Forest Hill has the deep, wide lots and mid-century bungalows that suit a larger one-and-a-half or two-storey home, and big trees that need careful planning. Westmount, along the Kitchener-Waterloo border, has some of the most sought-after mature lots in the region, and the houses being replaced there are often substantial already, so the new design has to earn its place on the street. Rockway and Victoria Hills have smaller, older houses on narrower lots, where zoning setbacks and side-yard access decide the design more than anything else. Stanley Park has post-war bungalows on decent lots where a modern bungalow or a modest two-storey is a common rebuild.
Where you live during the build
The honest answer is somewhere else, for the whole build. That means rent or family, storage for your things, and a mortgage conversation with your lender early. Construction financing works differently from a normal mortgage and usually pays out in stages as the house is built. Talk to your lender before you knock anything down.
Frequently asked questions
Is it cheaper to renovate or knock down and rebuild?
A small or cosmetic renovation is almost always cheaper. A renovation that moves most walls, adds a second storey and replaces all the services often gets close to new-build cost for a result that is still limited by the old foundation and ceiling heights. The honest answer depends on the house, and the cost guide has planning ranges for demolition and the rebuild.
Can I build a bigger house on my lot?
Often, but not always as much bigger as you hope. The zoning for your lot sets setbacks, height and coverage, and some mature Kitchener and Waterloo neighbourhoods have extra infill rules to keep new houses in scale with the street. Check the lot before drawings. If the design needs slightly more, a minor variance is sometimes an option, but it takes time and it is not guaranteed.
Do I need a permit to demolish my house?
Yes, demolition of a house requires a permit from the municipality, and the gas, hydro, water and sewer have to be properly disconnected first. Older houses should also be checked for asbestos before demolition. The builder normally coordinates all of it as part of the rebuild.
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