HuisKoopWijzer

HuisKoopWijzer is a free, privacy-first toolkit for the Dutch housing market. Unlike bank calculators, it sells no data and hides no costs. Key features: • Complete buyer’s costs (kosten koper) estimator (transfer tax, notary fees) • Hyper-local data & overbidding trends for 65+ Dutch cities • Rent vs. Buy & extra repayment calculators • Built-in AI assistant for Dutch housing laws • Zero account needed; all calculations run client-side.