In the Netherlands, bidding on a house is negotiation, not an auction. You submit a written offer through your buying agent or directly to the selling agent. The offer only becomes binding after written acceptance.
In a buyer’s market (more supply than demand) you often bid below asking, sometimes 5–10% less. In a seller’s market (more demand than supply) overbidding of 5–15% is common.
Resolutive conditions are crucial. The two most important are: financing condition (if you can’t get the mortgage) and building inspection condition. In an overheated market some buyers waive these — this is risky.
A bank guarantee or deposit (10% of purchase price) must be placed after signing the purchase contract. This is held in escrow by the notary until the transfer.
“How much should I overbid” has no general answer, but it does have a method. Look at three things: what comparable homes in the same neighbourhood actually sold for over recent months, how the asking price sits against the WOZ value, and how tight the market in that municipality is right now. A percentage you heard from a colleague describes a different neighbourhood in a different quarter.
The hard ceiling is not your mortgage but the valuation. You may borrow at most 100% of appraised market value. Bid €30,000 over on a home that appraises at the asking price and that €30,000 must come from your own cash — on top of your buyer’s costs. Overbidding therefore costs you twice: once in the price, and once in the savings you no longer have for the renovation.
Waiving the financing condition is the riskiest lever available to you. If the mortgage then falls through, you generally owe the seller 10% of the purchase price — on a €400,000 home that is €40,000 for a house you never get. Weigh that against the couple of percent the condition costs you in a bidding contest.
Many Randstad listings are not negotiated at all but run as a sealed process (inschrijving): every bid arrives at one deadline and the seller picks. You get one shot and you cannot see what anyone else is doing. Always ask explicitly which procedure applies — it changes your strategy completely.
Two practical points that decide things more often than you would expect. Don’t bid a round number: €403,500 beats €400,000 and costs you almost nothing extra. And sharpen your conditions rather than dropping them — a shorter deadline on the financing condition, or a survey with a cost threshold, often weighs more with a seller than your last thousand euros.