You can have a diversified retirement account and still have a household balance sheet dominated by one house. If the property is where most of your wealth sits, a local housing downturn or a costly repair can matter far more than the account’s mix of funds suggests.
Check two things: how large the home’s share of your net worth is, and whether you have other resources for goals the home cannot easily fund.
Calculate the share without counting the house twice
Start with property value minus mortgage and other debt secured by it. Compare that equity figure with a net-worth total that already deducts those loans; using the full property value would count the mortgage balance as if it were yours.
An illustrative household with no debts other than the mortgage already deducted from home equity:
| Component of net worth | Amount |
|---|---|
| Home equity | $300,000 |
| Retirement investments | $60,000 |
| Other investments | $20,000 |
| Cash | $20,000 |
| Total net worth | $400,000 |
Home equity makes up 75% of this total.
If there are other debts, include them consistently in the full calculation. Do not borrow money against the home and then treat the proceeds as an extra asset while leaving the new liability out.
Understand how borrowing changes the exposure
Suppose the $300,000 equity comes from a $500,000 house with a $200,000 mortgage. A hypothetical 10% fall in the property’s value would take its value to $450,000.
With the mortgage balance unchanged, equity would become $250,000. If every other component were unchanged, total net worth would fall from $400,000 to $350,000, a 12.5% decline.
The house lost 10%, but the owner’s equity lost about 17%: the full $50,000 drop came out of $300,000 of equity while the $200,000 mortgage stayed the same. Leverage works the same way when prices rise, and in either direction the loan is still owed on its actual terms.
Look at the rest of the household’s exposure
A home is tied to one location, and your job or business income may depend on the same local economy, so the house-price risk and the income risk can arrive together.
Ask what would happen if you needed to move for work while selling was difficult, or if a large repair arrived during an income interruption. Include insurance terms and deductibles in that discussion rather than assuming every loss would be fully covered.
Investor.gov defines diversification as the practice of spreading money among different investments to reduce risk. Applied to the household, if one property and one local job market drive most of the outcome, other resources need to carry more of the weight.
A credit line is borrowed money
Borrowing against the house turns some equity into cash and adds a debt of the same size, so net worth stays where it was while a new payment joins the budget.
A home equity loan lets you borrow using the equity in your home as collateral, and if you cannot pay it back, the CFPB notes that the lender could foreclose.
A home equity line of credit can also shrink: under federal Regulation Z, a lender may prohibit additional draws or reduce the credit limit if the value of the home declines significantly, or if a material change in your finances leads the lender to reasonably believe you cannot pay. Both can happen in the same downturn that strains your budget, so an unused line is a weaker backstop than cash already in the bank.
When planning for a shock, identify resources that would actually be available and the cost of accessing them.
Choose the next step
Depending on the household, the next step might be strengthening accessible reserves, building other long-term assets through future contributions, paying down costly obligations, or evaluating a different housing arrangement.
Compare those choices with the costs and value of the home as a place to live. Selling can produce expenses and a new housing bill; keeping the home can preserve stability while leaving concentration to manage elsewhere. If you do sell a main home, the IRS lets you exclude up to $250,000 of gain from income, or up to $500,000 on a joint return, provided you owned and lived in it for at least two of the five years before the sale.
Start with the table: update each line with your own figures this month, then direct your next savings contribution to whichever resource outside the house is weakest.
Sources checked October 5, 2026. All worked examples are illustrative, not survey estimates. General financial education, not individualized financial advice.
