Beyond the Diagnostics: 3 Hidden Costs French Property Buyers Often Miss
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Beyond the Diagnostics: 3 Hidden Costs French Property Buyers Often Miss

5 min read
Published February 8, 2026

Beyond the Diagnostics: 3 Hidden Costs French Property Buyers Often Miss

You've budgeted for the agency fees and the Notaire. But have you considered these hidden costs of owning property in France?

  1. Taxe Foncière & Taxe d'Habitation: The annual property taxes. While Taxe d'Habitation is being phased out for main residences, it still applies to second homes.
  2. Co-ownership Charges (Copropriété): If you buy an apartment, request the last three years of meeting minutes. Look for upcoming expensive works like roof repairs or elevator replacements (appels de fonds).
  3. Septic Tank Compliance: In rural France, many homes are not on mains drainage. A non-compliant fosse septique can cost €10,000+ to replace, and you are legally required to fix it within a year of purchase.

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