Rent Increase Linked to Service Costs

Rent increases may not unjustly raise service costs. The law separates bare rent from service costs; increases in service costs must be market-conform and justified. Landlords must provide a new settlement forecast upon increase. Tenants can have increases reviewed by the Rent Committee if they exceed the liberalisation threshold. Inflation or rising energy prices justify adjustment, but not excesses. Linking clauses in contracts are limitedly valid. In case of unreasonable increase, you can object and reclaim. The court tests reasonableness and fairness (article 6:248 CC). Practical example: for solar panels on the roof, additional costs only if benefit to tenant. Keep old settlements for comparison. Rent price control is possible annually. This article helps distinguish permissible and unlawful increases, so you don't pay too much. Proactive objection prevents cumulative damage. (192 words)