Affordability is a monthly payment.

Rent, insurance, energy and property tax arrive on the first of every month. Since January 2021 home insurance is up 42%, electricity 26%, property tax 23% (Statistics Canada, July 2026). One in three renter households pays more than 30% of its income for shelter (Statistics Canada, 2022). A programme that measures affordability once, at the rent line, on the day a building opens, misses most of what the household will actually pay.

Two clocks

There are two ways to see affordability. The first runs over years: zoning, permitting and construction cost, reformed so that more homes get built and prices ease. It is necessary, and it is slow. The second runs monthly. As the proptech investor MetaProp put it this summer, "supply reform sets affordability over years; the household experiences affordability monthly, as a payment" (Zach Aarons, MetaProp, July 2026). Technology or design that lowers that payment, steadies it, or caps its swings is an affordability measure in its own right. Policy attention concentrates on the first clock. Households live on the second.

The payment has layers

A monthly payment is four things stacked together. Capital: the cost of the building, carried as debt or as rent. Credit: the terms on which that capital was borrowed. Operating: insurance, energy, taxes and maintenance, the costs that continue whether or not the mortgage is paid off. Timing: when the money is due and how far it can swing from one month to the next. MetaProp's argument is that affordability is "a FIRE-economy problem": financial services, insurance, real estate and energy, together. The first two layers get the attention. The last two are where Canadian costs moved.

The squeeze moved outside the mortgage

Take the Canadian figures since January 2021, the month before the post-pandemic inflation began (Statistics Canada, Table 18-10-0004-01, latest point July 2026).

• +41.9%Home insurance, roughly twice the rise in the all-items index over the same period.
• +25.7%Electricity, national average. Alberta's annual average rose 45.4% at the 2021 to 2023 peak; Quebec, under a legislated cap, rose 11.7%.
• +23.4%Property taxes nationally. Toronto's compounded to about 26% between 2023 and 2026 (City of Toronto budgets).
• +52.9%Condominium fees, the fastest-rising line for homeowners.

Natural gas is the exception: about 3% net over 2021 to 2025 after a spike and three falling years, with the consumer carbon levy removed in April 2025. In Canada the energy pressure sits in electricity. Add the layers up and a mortgage-free owner spends about $13,750 a year running the home, against an average mortgage of $21,342 a year (Statistics Canada, Survey of Household Spending, 2023). The cost of operating a home now approaches the cost of financing it. That is the backdrop for the 2.4 million households the Parliamentary Budget Officer counts in core housing need, rising to 2.6 million by 2027 (PBO, December 2025).

Why it bites hardest in affordable housing

An affordable home is usually defined by its rent: a covenant fixes it at a share of market or of income, often for decades. The rent is capped. The operating costs beneath it are not. Insurance, energy and taxes rise with the market, and the covenant does not let the owner pass them on. In a market building the owner turns over units and resets rents. In a covenanted one there is no such escape, so every dollar of operating cost the design did not anticipate comes out of the margin that keeps the building solvent, or out of the services the residents were promised. The affordability a covenant guarantees on paper is only as durable as the operating layer beneath it.

Designing for the payment

If affordability is a payment, it can be designed. The building envelope decides the energy bill for the life of the home; a tighter one, with lower-carbon materials, cuts the operating layer every month, on exactly the units where affordability has to last. Predictability matters as much as level: a household that can carry a steady payment can still be broken by one month that doubles it, so fixed-price energy, smoothed billing and insurance that does not reprice every year are affordability tools. Connectivity, and the cost of taking part in the community around the home, belong in the same envelope, because they arrive on the same day.

What affordability really means

Buy predictability, not only depth

For a programme that buys affordability, the lesson is to buy the whole payment. Depth of subsidy at the rent line is the visible measure. Duration, predictability and the operating design beneath the rent decide whether the home is still affordable in year ten. A door that pencils on paper and stays affordable once people live in it is the only kind worth counting.