I Tried to Account for Housing Risk — and Learned Why Most People Don’t

After thinking a lot about diversification and risk, I started to feel uneasy about something I hadn’t really questioned before:
my house.

It’s by far the biggest financial exposure I have. One property, one city, lots of leverage, not very liquid, and closely tied to the same local economy that pays my salary. On paper, that looks like a pretty concentrated position.

So naturally, my next thought was:
Shouldn’t this affect how I think about my investment portfolio?

That question felt reasonable. Almost obvious.

It turns out it was also a good way to learn why most people don’t want to think about housing that way at all.

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The question I asked

I went to Reddit (r/PersonalFinanceCanada) with what I thought was a fairly straightforward question:

If my house is already a big, concentrated exposure, should I be more conservative (or more aggressive) with my investments? Or should I just ignore housing when thinking about asset allocation?

I wasn’t looking for formulas. I wasn’t trying to optimize anything. I just wanted to know how people actually think about this in practice.

The response was… blunt.

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The answer I kept getting

The most common replies were some variation of:

• “Stop thinking about it.”
• “Your home isn’t an investment.”
• “Treat it as shelter, not part of your portfolio.”
• “You’re overthinking this.”

At first, that was a bit frustrating. It felt like people were dodging the question.

But after sitting with it for a while, I realized something important:

They weren’t saying housing doesn’t matter.
They were saying they deliberately choose not to model it.

That’s a very different thing.

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What people actually do instead

Once you look past the blunt phrasing, a clear pattern shows up.

Most people do let housing affect their financial decisions — just not in the way I was imagining.

Housing tends to enter the picture in two places only:

1. Mortgage vs investing decisions
   Paying down a mortgage is a guaranteed, tax-free return. Investing has higher expected returns but more uncertainty. People weigh those two, often emotionally as much as mathematically.

2. Retirement cash flow planning
   Owning a home outright later in life reduces required income. That affects how much people need to save, not how they allocate assets.

What people don’t usually do is:

• adjust equity/bond allocations because of housing
• treat their home like a giant real estate ETF in their portfolio
• try to “offset” housing risk with international equities

Not because those ideas are obviously wrong — but because they tend to make decisions worse, not better.

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The thing I underestimated: behavioral cost

In theory, you could try to model housing as:

• leveraged real estate exposure
• geographically concentrated risk
• correlated with job income

None of that is false.

But in practice, doing this introduces a big hidden cost: mental overhead.

It creates questions like:

• “Am I now too conservative?”
• “Should I take more equity risk to balance housing?”
• “What if housing crashes but stocks don’t?”
• “What if both crash at the same time?”

Very quickly, a simple investing plan turns into a constantly shifting target.

And the people replying on Reddit weren’t being anti-intellectual. They were being pragmatic. Many of them have already learned that more complete models aren’t always better models.

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Separation as a design choice

This was the real insight for me:

Keeping housing out of portfolio decisions isn’t ignorance.
It’s a design choice.

A choice to:

• reduce anxiety
• avoid overfitting a personal financial model
• focus on decisions that actually move the needle

In other words, people aren’t saying “housing doesn’t matter.”

They’re saying:

“This is not where I want complexity to live.”

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Where I landed (for now)

I still believe it’s technically correct that housing affects overall risk.

But I now think it’s also reasonable — maybe even wise — to keep that risk mentally separated from investing decisions, and handle it indirectly:

• through mortgage paydown choices
• through emergency funds
• through career and income stability
• through simpler, more robust investment rules

Instead of asking:

“How should my house change my portfolio?”

A better question might be:

“Where does accounting for housing actually help me make better decisions — and where does it just add noise?”

That framing feels much more grounded.

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A broader pattern I’m starting to see

This isn’t just about housing.

It’s the same pattern I keep running into with investing in general:

• The theoretically complete model is often unusable.
• The best long-term strategy is the one you don’t constantly rethink.
• Ignoring some risks on purpose can be rational.

That doesn’t show up in textbooks, but it shows up very clearly in how people behave over decades.