Property ownership is often associated with safety. A home is physical, visible and usable, and does not display a price rising or falling on a screen every second. Yet this perceived stability can conceal a very concrete risk: concentration. If almost all someone's wealth consists of one or two properties, much of it depends on the same type of asset, the same location and often the same economic environment. This does not mean property is a bad investment. It means a heavily concentrated property portfolio can be less flexible and riskier than it appears. In its financial education materials, CONSOB notes that diversification means preventing portfolio performance from depending too much on a single instrument, sector or market. The principle also applies to assets without daily quoted prices.
A price that is not visible every day does not eliminate risk
An equity ETF constantly displays fluctuations. An apartment's value does not. This may create an impression that property is “stable”, but its market value changes even when we have no up-to-date quotation. If we buy a property for 250,000 euros and years later the local market is willing to pay 210,000, the economic loss exists even if it does not appear in an app. The difference is that valuations are less frequent and selling takes longer.
Geographical risk
A property is not just exposure to the property market: it is exposure to a very specific area. A neighbourhood's performance can depend on infrastructure, demographics, local employment, services, planning, tourist or university demand and many other variables. Someone owning three apartments in the same city may appear diversified because they have three separate assets, but economically may still be highly concentrated. If local property demand deteriorates, all three properties can be affected simultaneously.
Diversification also concerns income streams
Concentration is not just about property values. A family may live in a home it owns, work in a construction-related sector and own two rental apartments in the same area. A local slowdown may simultaneously affect employment income, rents and asset values. Adding a third similar property increases the number of assets but does not necessarily reduce the common risk. I would therefore examine separately geographical area, tenant types, lease duration, dependence on credit and the burden of property expenses on household income. The home you live in also retains a different function: it provides housing services, not just a return. Including it in net worth is correct, but treating it as an immediately liquid investment overstates available financial flexibility.
Liquidity: selling is not pressing a button
Liquidity is one of the most underestimated aspects. A listed financial security can normally be sold very quickly. A property requires valuation, advertising, viewings, negotiation, documentation, potentially the buyer's mortgage and completion before a notary. If we urgently need 100,000 euros and own only a 400,000-euro house, we cannot sell one quarter of it. This indivisibility makes property wealth inflexible. Borrowing secured against the property is possible, but means adding new debt and depending on the terms offered by the bank.
Entry and exit costs
Buying and selling property involves potentially significant costs: taxes, notarial fees, any estate-agent fees, loan processing, maintenance and other charges. These costs make the investment particularly sensitive to the time horizon. If a property is bought for 200,000 euros and initial costs total, for example, 15,000 euros, the capital actually committed already exceeds the property's price. If we are forced to sell shortly afterwards, even a sale price identical to the purchase price can produce an overall economic loss.
Rental income and net return
An apartment rented for 900 euros a month generates 10,800 euros in gross annual rent. Dividing 10,800 by the purchase price and calling the result “return” is incomplete, however. Vacant periods, maintenance, taxes, non-recoverable expenses, insurance, any management charges and tenant default risk must be considered. Suppose a 220,000-euro property produces 10,800 euros in gross rent. The gross yield is approximately 4.9%. If 6,500 euros remains after taxes, maintenance, vacant months and other expenses, the net yield on the price falls to about 3%. If we also incurred 20,000 euros in purchase costs, the return on the capital actually invested is lower still.
Measuring return on the capital actually committed
To compare property with other assets, I would start with total invested capital: price, taxes, notary, any agent, initial work and necessary furnishings. From rent, I would subtract vacant periods, maintenance, insurance, taxes, non-recoverable expenses and management costs. The resulting net return is lower than dividing gross rent by the purchase price alone, but better describes the economic outcome. Imagine a purchase of 180,000 euros with 18,000 euros in upfront costs. Annual rent is 9,600 euros; after taxes, maintenance and an allowance for vacancy, 6,000 euros remains. The net yield on initial capital of 198,000 euros is about 3%. Any positive or negative change in property value will add to this result, but becomes certain only on sale and after the associated costs.
Leverage: helpful, but it also amplifies risk
Property is often bought with a mortgage. Leverage can increase returns on equity when property values and rents perform well, but also amplifies losses. Imagine a property worth 250,000 euros purchased with 50,000 euros of equity and a 200,000 mortgage. If its value falls by 10%, the market loss is 25,000 euros: half the initial equity contributed, even before considering costs and principal already repaid. The property fell by only 10%, but the effect on initial equity is much stronger.
The risk of confusing a home with an investment
A primary residence serves a different purpose from a property bought for returns. It provides housing utility that does not appear directly as a cash flow and may have strong personal value. When calculating asset allocation, however, it still remains an illiquid property asset. If a family owns a 400,000-euro home, has 20,000 euros in the bank and no other investments, net worth may be high but liquidity is very low. A major unexpected expense can create financial strain despite significant wealth.
Diversification does not necessarily mean selling property
The solution is not automatically to reduce property holdings. Someone may choose to retain them for family, housing or economic reasons. The point is to avoid every newly saved euro increasing the same exposure without an overall assessment. If 90% of net worth is already in property, directing new cash towards diversified financial instruments can gradually improve the balance without selling anything. Diversification can also be built over time through new savings flows.
How I would measure concentration
I would start with a personal balance sheet: properties at reasonable values, financial assets, cash, ownership stakes and other assets, minus mortgages and other debts. Then I would calculate each category's share of net worth and total assets. Discovering that 80% or 90% of wealth depends on property does not automatically mean I must change strategy. It does mean I must be aware of three risks: illiquidity, geographical concentration and dependence on the property market. The higher the share, the more sensible it is to think carefully about where future savings should go. Property can be an important component of wealth. The problem begins when “tangible” is confused with “risk-free”. Wealth is resilient not because it contains only assets perceived as safe, but because it is structured to avoid excessive dependence on a single source of value.
Note. This article is for information only and does not constitute financial, property or tax advice.