Annual rent increase

Annual rent increase refers to the percentage or absolute increase in the net base rent over the course of a year-whether through a regular rent adjustment to the local market rate, a graduated or index-linked rent agreement, or a new lease at a higher market rate. In investment planning and portfolio valuation, the expected annual rent increase rate is a key parameter for forecasting future rental income and thus for real estate valuation.

Legal Basis and Limits of Rent Increases

German tenancy law defines clear limits for rent increases during the term of a lease:

• Comparative rent increase (Section 558 BGB): The landlord may raise the rent up to the local comparative rent if the rent has remained unchanged for at least 15 months. There must be a minimum of 12 months between two rent increases. The cap limits the annual rent increase to a maximum of 20% over a three-year period (in tight markets such as Nuremberg: 15%).
• Graduated rent (§ 557a BGB): Future rent increases are contractually fixed in advance (e.g., an annual increase of 2-3%). No additional comparative rent increase may be demanded during a graduated rent agreement. Each stage must apply for at least 12 months.
• Index-linked rent (Section 557b BGB): The rent is linked to the Consumer Price Index (CPI) of the Federal Statistical Office. As inflation rises, the rent increases automatically; in the event of deflation, it may decrease. Index-linked rent has a long tradition in commercial lease agreements; since the period of high inflation in 2021-2023, it has also become more widespread in residential tenancy law.

Annual Rent Increase as an Investment Parameter

In investment calculations and portfolio valuation, an expected annual rent increase rate is used as a growth assumption:

• Long-term average: For German residential real estate, annual rent increases of 2-5% were achieved in the past (2010-2022) in metropolitan regions such as Nuremberg. Since 2022, there has been a slowdown in existing rents (due to rent control limits), while rents for new leases have risen more sharply.
• DCF models: In the discounted cash flow (DCF) method, the assumed annual rent increase is applied to all future cash flows. An increase in the assumed rate from 1% to 2% p.a. can alter the calculated property value by 10-20%.
• Index-linked lease agreements: With index-linked rents, the annual rent increase corresponds directly to the inflation rate for the respective year-an attractive automatic inflation hedge for investors.

Rent Increases in Nuremberg: Market Data and Regulation

In Nuremberg, stricter rules apply due to the city’s designation as a tight housing market:

• Cap: Only a 15% rent increase within three years (instead of 20%)
• Rent Control: For new leases, a maximum of 10% above the local comparative rent
• Nuremberg Rent Index: Last published in 2023; serves as a reference for all comparative rent increases

Despite these restrictions, existing rents in Nuremberg rose significantly between 2015 and 2023. Following the high-interest-rate shock of 2022/2023, purchase price dynamics have slowed, but demand for rental apartments-and thus the potential for rent increases-remains robust. Particularly in neighborhoods with good public transportation connections and high demand (e.g., St. Johannis, Gostenhof, Maxfeld), rents for new leases are significantly above existing levels.

Annual Rent Increases and Tenant Retention

A strategic consideration for landlords: Regular, moderate rent increases within the limits permitted by law keep rents in line with the market and avoid the need for major adjustments when tenants change. Landlords who refrain from raising rents for many years and then attempt to set a new lease at full market rates may face the problem that rent control limits the achievable new lease rent-while the previous rent was very low. Gradual adjustments are therefore often more sensible than holding back for many years.

Practical Tip for Landlords in Nuremberg and Franconia

Landlords in Nuremberg who wish to systematically take advantage of the annual rent increase should follow this strategy: When renting to a new tenant, consistently set the rent at the upper end of the local rent index (if necessary, with a justification compliant with rent control regulations). For existing leases, check every 15 months whether a rent increase to the local comparative rent is possible and reasonable. For graduated rents: Calculate realistically (2-3% per year) and keep long-term tenant stability in mind.

We are happy to assist you in drafting legally compliant rent increase notices and selecting the appropriate lease agreement type for your property (standard, graduated, or index-linked).

Frequently Asked Questions

What is the maximum annual rent increase allowed in Nuremberg?

In Nuremberg, which is considered a tight housing market, a cap of 15% over a three-year period applies. There is no statutory upper limit per year, provided that the local comparative rent is not exceeded and the three-year cap is observed. For index-linked rents, no cap applies, but the rent may not exceed the local comparative rent by more than 20% (Section 557b(4) of the German Civil Code).

Is an automatic annual rent increase possible?

Yes, through a graduated rent agreement (fixed annual increments) or an index-linked rent agreement (automatic adjustment linked to the CPI). Both options require clear contractual agreements. In a standard lease agreement without such clauses, each rent increase must be individually explained and justified.

What happens to the annual rent increase when there is a change of tenant?

In the case of a new lease (change of tenant), the previous actual rent and cap limit no longer apply. The new tenant pays the agreed-upon market rent-limited by the rent control law to a maximum of 10% above the local comparative rent. If the previous rent is already higher, it may continue to be charged in Nuremberg under existing lease protection (exception under § 556e BGB).

Can the rent increase due to index-linked rent exceed the cap?

Yes. The cap applies only to comparative rent increases under Section 558 of the German Civil Code (BGB), not to index-linked rent increases under Section 557b of the German Civil Code (BGB). However, there is an upper limit for index-linked rents: The rent may not exceed the local comparative rent by more than 20%. This special protection was introduced by the 2023 Amendment to the Tenancy Law.

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