Hands-on, sourced and fact-checked: commercial leases, operating costs and location – explained from the tenant's side.
A March 2026 ruling by Germany's Federal Court of Justice strengthens commercial tenants: standard-form value-protection clauses are subject to fairness review — if they fail it, they are void from the outset, and overpaid rent can be reclaimed. Explained from the tenant's side.
German appellate courts disagree on whether a standard-form clause may pass maintenance costs on to commercial tenants without a cost cap. A Federal Court of Justice ruling is still pending.
For decades the “written-form trap” was the most feared formality problem in German commercial tenancy law – one unsigned amendment could unravel a 10-year lease term. Since the text-form reform, a new regime applies. This fact check debunks four persistent myths.
An overview of the typical sources of error in commercial operating-cost statements – and how you, as a tenant, can spot and check every single one.
How you, as a commercial tenant, can check an index-based rent increase against the consumer price index yourself – with formula, example table and the legal guardrails of the Price Clause Act.
How commercial tenants check their service-charge statement step by step – from the deadline through the allocable costs to the allocation key and the most common errors.
Which rent-adjustment model better protects commercial tenants against rising costs – the predictable graduated rent or the inflation-linked index rent? The comparison from a tenant's perspective.
In a commercial lease, only what the contract expressly names is apportionable – this overview shows the complete BetrKV catalogue and the key commercial-lease specifics.