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Deposit and Indexation in Delft: Adjustment to Inflation and Rent Increase

Learn the rules for indexation of the deposit to inflation in Delft: calculation, procedure and maximum limits according to the Dutch Civil Code and CPI, with local tips.

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May the deposit in Delft be indexed?

Yes, in Delft the deposit may be adjusted annually to inflation pursuant to Article 7:249 of the Dutch Civil Code (BW), provided this is explicitly stated in the lease agreement for a dwelling in Delft or its surroundings. This follows the consumer price index (CPI) of the CBS, which is relevant for the rental market in this student city with high demand for rooms and apartments.

Calculation method for tenants in Delft

Formula: New deposit = Old deposit × (New CPI / Old CPI). Example specific to Delft: For a deposit of €1200 (typical for a room near TU Delft), if CPI rises from 120 to 125: new deposit €1250. Tenants in Delft can easily check this via the CBS website or local rental advice.

Procedure for adjustment in Delft

  1. Send timely written notice with detailed calculation, ideally before 1 July for the new academic year.
  2. Tenant pays the difference; landlord deposits this into a blocked account at a Delft bank such as ING or Rabobank.
  3. Upon termination of the lease, repayment of the adjusted amount within 30 days, taking into account local customs around the Technical University.

Disputes and limits in Delft

The deposit in Delft may never exceed two months' rent (statutory maximum under the Dutch Civil Code). In case of exceedance, the tenant may demand a reduction via the Rent Tribunal in The Hague, which handles many Delft cases. Local associations such as the Delft Student Union offer free advice on indexation disputes.