Bridge loans in Paris: how they work, costs and alternatives for buying before selling

The bridge loan crystallises a very real anxiety for Parisian homeowners wanting to change property: how to buy the next apartment without having sold the previous one? The Parisian market is unforgiving. Quality properties sell fast, and waiting until you have sold before starting to search means risking the ideal apartment. But buying before selling means owning two properties simultaneously, with two mortgages or a running bridge loan, and the pressure to sell within a constrained timeframe.

This timing dilemma is one of the most complex in residential property. It affects a significant proportion of Parisian buyers: growing families seeking more space, couples separating who need to divide shared assets, and homeowners who wish to change neighbourhood or arrondissement. All face the same question: sell first or buy first?

At Home Select, our property hunters regularly manage dual buy-sell projects. The bridge loan is one available tool, but not the only one, and not always the best. This guide analyses the mechanism, costs, risks and alternatives so your decision is fully informed.

How does a bridge loan work?

A bridge loan advances 60 to 80% of the estimated value of the property you are putting on the market, over a maximum of 12 to 24 months, so you can buy before you have sold. It is a transitional credit: its function is to advance the money from the future sale of your current property so you can buy the new one without waiting for the sale to complete.

The principle is as follows. You own an apartment valued at 500,000 euros and wish to buy a new property for 650,000 euros. The bank grants a bridge loan equal to 70% of the estimated value of your current property, i.e. 350,000 euros. You supplement this with a standard mortgage of 300,000 euros to finance the difference. You buy the new property with these 650,000 euros. When your former property sells (say for 490,000 euros), you repay the bridge loan of 350,000 euros in full, and the balance from the sale (140,000 euros) reduces your standard mortgage or goes to your cash reserves.

The bridge loan is a bullet credit: you repay the principal only at maturity, upon the actual sale. During the bridge period, you pay only interest, either monthly or at maturity depending on the chosen arrangement.

The standard duration is twelve months, renewable once to reach a maximum of twenty-four months. Beyond that, banks generally do not extend; the bridge must be settled.

What are the different bridge loan arrangements?

Four arrangements coexist: the standalone bridge, the coupled bridge, the bridge with full deferral and the bridge with partial deferral. In Paris the coupled bridge dominates, because buyers most often purchase at a higher price than what they are selling. Banks therefore offer several bridge loan variants, differing in structure and cost.

The standalone bridge loan. The bank finances only the bridge. The difference between the new property price and the bridge amount is covered by your own funds (savings, deposit). This arrangement suits cases where you are buying a less expensive or equivalent property and have the necessary deposit to supplement. The cost is limited to the bridge interest.

The coupled bridge loan (or buy-bridge). The bridge is paired with a standard mortgage that finances the portion of the price not covered by the bridge. This is the most common arrangement in Paris, where buyers often purchase at a higher price than what they are selling (upgrading to larger, better arrondissement). During the bridge period, you pay bridge interest plus standard mortgage instalments. When the bridge settles, you pay only the standard mortgage.

The bridge loan with full deferral. Bridge interest is not paid monthly but capitalised and repaid in one lump sum at settlement. You pay nothing during the bridge period: no principal, no interest. This is the most comfortable arrangement in terms of cash flow but the most expensive: unpaid interest generates further interest (capitalisation). Over twelve months, the difference is modest. Over twenty-four months, it becomes significant.

The bridge loan with partial deferral. You pay bridge interest monthly, but the standard mortgage instalments are deferred during the bridge period. This is a compromise between cash flow comfort and total cost.

How much does a bridge loan really cost in Paris?

A bridge loan of 400,000 euros over twelve months costs 16,000 to 21,000 euros: 14,000 to 16,000 euros of interest at a 2026 rate of 3.4 to 4.0%, plus 2,000 to 5,000 euros of ancillary fees. On top of that credit cost, and outside this calculation, comes the double burden of carrying two homes for the duration of the bridge. The bridge loan is not free, and its cost is often underestimated by borrowers. The components break down as follows.

The interest rate. In 2026, bridge loan rates sit between 3.4 and 4.0% depending on the bank, borrower profile and arrangement. This is generally 0.2 to 0.5 points above a standard mortgage rate, itself between 3.2 and 3.5% over 20 years. The banking logic is simple: a bridge loan carries more risk than a standard mortgage (no guarantee of sale at a given price), so the rate is higher.

The interest charges. On a bridge loan of 400,000 euros at 3.5% over twelve months, interest amounts to 14,000 euros; at 4.0%, to 16,000 euros. Over twenty-four months the figure doubles: 28,000 to 32,000 euros. This is a significant cost on top of notary fees for the new property, any agency fees for the sale, and the move itself.

The ancillary fees. Bank processing fees (500 to 1,500 euros), bridge loan guarantee (mortgage charge or surety, 1,000 to 3,000 euros), mortgage insurance on the bridge (varies by age and amount). Total ancillary costs add 2,000 to 5,000 euros to the bridge loan price.

A calculation few borrowers make: the opportunity cost. During the bridge period, your former property is for sale and you are paying charges (property tax, co-ownership charges, possibly the current mortgage if the capital is not fully repaid) on two properties. The combined weight of two homes can represent 2,000 to 5,000 euros per month in Paris, a considerable cash-flow item if the bridge runs beyond six months, and one that does not enter the credit cost calculated above.

All told, the credit itself costs 16,000 to 21,000 euros over twelve months on 400,000 euros advanced: 14,000 to 16,000 euros of interest and 2,000 to 5,000 euros of ancillary fees. That is the price of flexibility, before even counting the double burden: the ability to buy before selling. The question is whether that flexibility is worth the price.

What are the risks of a bridge loan?

Three risks dominate: failing to sell within the initial twelve months, selling 10 to 15% below the valuation the loan was based on, and carrying the double burden of two homes for longer than planned. The bridge loan is a bet on the time it takes to sell your current property, and that bet carries real risks.

The risk of not selling in time. If your property does not sell within the initial twelve months, the situation gets complicated. The bank may grant a twelve-month renewal, but this is not automatic. It is a commercial decision that depends on your profile, the market and the bank’s policy. If renewal is refused, you must repay the bridge without having sold, which may force an urgent sale at a below-market price.

The Parisian market is generally liquid. Properly priced properties sell in two to four months. But an overpriced property, a poorly presented one, or one in a difficult segment (large high-end apartment, ground floor with no particular quality, DPE rated F or G) can remain on the market much longer. And the pressure of the bridge loan often pushes sellers into accepting a lower offer rather than waiting, exactly the opposite of what a patient seller would achieve.

The risk of selling below estimate. The bank grants the bridge on the basis of a valuation. If the property sells 10 or 15% below that estimate, the sale proceeds do not fully cover the bridge, and the shortfall increases your long-term debt. This scenario is not rare in falling markets or for properties whose value was overestimated by overly optimistic estate agents.

The risk of double burden. During the bridge period, you bear the charges of two properties. If your former property still has an outstanding mortgage, you pay two mortgages plus the bridge. Even without a mortgage on the old property, property tax, co-ownership charges, insurance and possible maintenance works to facilitate the sale represent a significant monthly cost.

Buying and selling simultaneously requires meticulous coordination. Our property hunters manage the timing of your dual operation to minimise cost and risk. Entrust us with your project.

What are the alternatives to a bridge loan?

Five options exist: selling first then buying, the four-to-six-month long completion clause, the sale contingency clause, the buy-sell mortgage and, more rarely, lease-to-own. Selling first remains the safest solution, and the three-to-six-month transitional period it imposes costs 4,500 to 18,000 euros, generally less than a bridge. The bridge loan is therefore not the only solution for managing the gap between sale and purchase: depending on your situation, other options may be better suited.

Sell first, buy later. This is the financially safest solution. You sell your property, collect the proceeds, then search for your new home with a known and certain budget. The risk is zero, and the financing cost is that of a single standard mortgage.

The drawback: you need transitional housing between the sale and the purchase. Temporary rental (1,500 to 3,000 euros per month for a decent furnished place in Paris), family accommodation, or storage plus short-term let. The cost of this transitional period (typically three to six months) runs to 4,500 to 18,000 euros, often comparable to or less than the cost of a bridge loan. And crucially, you buy without pressure, with time to choose well.

An often-forgotten lever: the long completion clause. When you sell your property, you can negotiate with the buyer a completion period of four to six months instead of the standard three. This extra time gives you the opportunity to find and buy your new property before having to vacate. Not all buyers accept a long completion, but many will consent if the price is fair, especially investors or buyers who do not need to move in immediately.

The sale contingency clause. You make an offer on the new property conditional on the sale of your current one. If your property does not sell within the agreed period, the purchase is cancelled without penalty. This protects the buyer but constrains the seller of the new property, who will often prefer a buyer without this condition. In a tight market, this clause reduces your competitiveness.

The buy-sell mortgage. Some banks offer an integrated product that combines the new property financing and the bridge on the old one into a single loan. The outstanding balance on the old property is folded into the new loan, the former mortgage is cleared, and you pay a single instalment, recalculated when the sale completes. Two concrete advantages over a standard bridge: the bank assesses your debt ratio on the final charge, after the sale, rather than on the temporary double burden, and there is no twelve to twenty-four month deadline hanging over you if the sale drags. Banks offering it do require a property located in a tight market, which Paris and the Île-de-France region are, an outstanding balance that is reasonable against the property’s value, and a post-sale debt ratio within the 35% HCSF norm. The total cost itself remains comparable to a standard coupled bridge loan.

Lease-to-own or sale with right of repurchase. These are niche solutions suited to specific situations (temporary financial difficulties, complex inheritance). They concern only a minority of transactions and are rarely used for standard dual operations.

What does a property hunter do in a dual buy-sell operation?

They synchronise the sale timeline with the search timeline, give an independent valuation of the property being sold, and negotiate the deadlines on both sides. At Home Select, the average search time is 45 days and the average negotiation 6% off the seller’s price: two figures that matter when every week of bridge costs money. The dual buy-sell operation is the type of project where a property hunter adds the most value, because timing is critical and every week of misalignment has a financial cost.

Our property hunters intervene on several fronts.

Sale-purchase synchronisation. The hunter calibrates the search timeline based on the progress of the sale. If the property is on the market and initial offers are coming in, the hunter accelerates the search to have options ready. If the sale takes time, the hunter adjusts the search criteria to stay within the available bridge loan budget.

Realistic valuation of the property to sell. Too many dual operations fail because the property for sale was overvalued, artificially inflating the purchase budget and the bridge amount. Our hunters, who know actual Parisian market prices on a daily basis, give an objective opinion on the value of your current property. It is not always the opinion owners want to hear, but it is the opinion that prevents unpleasant surprises.

Speed of response. When the sale materialises and the preliminary agreement is signed, the hunter typically has three months to find the new property: the time between the preliminary agreement and the final deed. Three months to find, view, negotiate and sign a preliminary agreement on the new property. That is tight, but it is exactly the type of assignment where a dedicated property hunter makes the difference compared to a solo buyer.

Calendar negotiation. The hunter negotiates timelines in both directions: long completion on your current property if needed, adapted completion timelines on the new property, coordination with the notaires of both transactions so that signing dates dovetail.

At Home Select, dual operations represent a significant share of our activity. The average search time of 45 days and the average negotiation of 6% on the new property price are tangible advantages for clients for whom every week counts.

Selling and buying at the same time: our property hunters orchestrate the timing so you only move once. Get a free callback.

Should you take a bridge loan or sell first?

A bridge loan is justified when your current property is easy to sell and a buying opportunity cannot wait; selling first is the right call as soon as the property is hard to sell or your cash flow cannot support a prolonged double burden. The choice between a bridge loan and an alternative therefore depends on your personal situation, your risk tolerance, and the liquidity of your current property.

A bridge loan makes sense when your current property is easy to sell (good location, right price, good condition), when you have identified a buying opportunity that cannot wait, and when your finances can comfortably support the double burden for six to twelve months.

A bridge loan is risky when your property is difficult to sell (high price, atypical configuration, poor energy rating), when your cash flow cannot support a prolonged double burden, or when the market is uncertain and selling times are lengthening.

Selling first is the safest solution when you are not in a hurry, when you can find temporary accommodation without difficulty, and when financial peace of mind is your priority.

The right advice is not to systematically choose one option or the other. It is to analyse your specific situation: assets, income, outgoings, market conditions, project urgency, and to choose the strategy that optimises the balance of benefit, risk and cost. That is exactly what our property hunters do before launching a search: set the financial framework, understand the timing constraints, and adapt the strategy to reality. Not to theory. To reality.