Determine rental prices for inherited apartments online: A 5-step plan for legally secure returns

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Couple assesses the value of their inherited property for tax purposes.

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Couple assesses the value of their inherited property for tax purposes.

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Couple assesses the value of their inherited property for tax purposes.

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Determine rental prices for inherited apartments online: A 5-step plan for legally secure returns

Determine rental prices for inherited apartments online: A 5-step plan for legally secure returns

Determine rental prices for inherited apartments online: A 5-step plan for legally secure returns

26 May 2025

9

Minutes

Federico De Ponte

Expert in inheritance management at Auctoa

26 May 2025

9

Minutes

Federico De Ponte

Expert in inheritance management at Auctoa

Have you inherited an apartment and are wondering what the right rent is? Setting the rent too high can lead to vacancies, while setting it too low can reduce your return by up to 20%. This guide shows you how to determine the optimal rental price for your inherited apartment online and avoid pitfalls with confidence.

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With access to Google, BORIS, and Deep Research.

The topic briefly and concisely

Always use the qualified rent index of your municipality as a legally secure basis for determining the local comparable rent.

Check whether the rent cap applies to your property to correctly limit the rent for new lettings to a maximum of 10% above the comparable rent.

Rely on digital tools and AI analytics to use not only rental indices but also up-to-date market data for precise and objective price discovery.

Inheriting a property is an emotional and at the same time complex task. In the midst of grief, significant financial decisions need to be made. One of the first and most important questions is: How can I determine the correct rental price for the inherited property? A wrong approach can cost you thousands of euros in returns annually or lead to legal disputes. This article provides you with a clear, data-driven roadmap. You will learn to understand the legal frameworks, correctly use the local comparative rent, and set an accurate, market-appropriate rent with digital tools. This way, you secure your earnings and create a solid foundation for the future of your property.

Step 1: Understand the legal framework

Before determining the rental price for your inherited apartment, you must be aware of the legal requirements. Two tools are central in this regard: the rental index and the rent brake. Since 1 July 2022, qualified rental indices for municipalities with more than 50,000 inhabitants are mandatory and must be accessible online for free. These reflect the local comparative rent and are the basis for any serious calculation.

The rent brake, whose validity has been extended until 2029, limits the rent for new leases in tense housing markets to a maximum of 10% above the local comparative rent. Violations can lead to tenants reclaiming overpaid rent. Therefore, be sure to check whether your property is located in such an area. Having precise knowledge of these rules protects you from financial losses and is the first step towards professional leasing. The correct application of these tools forms the foundation for the subsequent steps of your price determination.

Step 2: Use the local comparative rent as a reference point

The local comparable rent is the most important reference value for determining the rental price of your inherited apartment. According to § 558 section 2 BGB, it is formed from the rents paid for comparable housing in the last six years. The simplest way to determine this is through the qualified rent index of your city or municipality. This provides a legally secure range based on objective criteria.

The following factors mainly determine the comparable rent:

  • Location: Differences between districts can affect the rent by over 30%.

  • Size and layout: The living area in square metres and the number of rooms are basic indicators.

  • Year of construction and energy condition: A good energy rating can increase the rental price by up to 15%.

  • Fittings: Features such as a balcony, a fitted kitchen, or modern flooring justify surcharges.

A common mistake is inaccurately categorising your property within the rent index categories. Take your time with this or use digital helpers. Once you have determined the basic rent, you can consider specific value drivers of your apartment in the next step.

Step 3: Objectively assess the condition and features

The rent index provides a price range; the exact positioning of your flat within this range depends on its individual condition. A recent renovation can increase the rent by 10-20%. Document all modernisations from the last 15 years, particularly in areas like the bathroom, windows, and heating. A detailed listing justifies a higher rental rate and is invaluable in case of tenant inquiries.

The furnishings also play a crucial role. A high-quality fitted kitchen can justify a monthly surcharge of 50 to 80 euros, depending on the city and quality. Check whether your inherited property has special features not covered by the standard rent index, such as smart home equipment or particularly fast internet connection. These details not only help you determine the rent for your inherited flat accurately but also assist in future marketing. A transparent list of all advantages, as is common in a detailed exposé, builds trust. Next, we will show you how to process this data digitally.

Step 4: Use digital tools for precise analysis

Manual research in rent indices and comparison with other offers is time-consuming and prone to errors. Online rent calculators analyse hundreds of thousands of listings and provide an initial orientation in seconds. These tools are often more up-to-date than the rent indices published every two years. The decisive advantage lies in the data-driven objectivity, which avoids gut decisions.

Modern AI-driven platforms take it a step further. They link rent index data, current rental offers, socio-demographic developments, and even construction activity in the neighbourhood. This creates a dynamic picture of the real market value. Instead of working through countless tables, you receive a clear action recommendation. For example, the ImmoGPT chat from Auctoa can provide an initial assessment in just 2 minutes and highlight which factors are particularly relevant for your inherited property. This technological support is the fastest way to calculate the optimal rental yield. With this validated price, you can now proceed to the final step.

Step 5: Set the final rental price and communicate it in a legally secure manner

After you have gathered and analysed all the data, set the final rental price. This should be in line with the market to avoid vacancies, but also maximise your full return potential. Allow for a small negotiation margin of around 3-5%. A slightly higher price gives you flexibility without appearing unprofessional. Document your calculations carefully.

A transparent justification of the rental price in the tenancy agreement, based on the qualified rent index or an expert opinion, is essential. This is particularly important if the rent control applies and you wish to claim an exception (e.g., due to previous rent or modernisation). Proper documentation protects you from future conflicts and demonstrates your professionalism. The question of whether renting or selling is more profitable strongly depends on a correctly determined rental price. A well-justified rental price is the best assurance for a successful long-term tenancy.

Conclusion: Data outperforms intuition for maximum returns

Determining the rental price for an inherited property online is not rocket science, but it requires a structured and data-driven approach. Do not rely on estimates from neighbours or outdated assumptions. Use available digital tools like online rental indices and AI evaluations to create a solid basis for decision-making. By observing the legal framework and objectively assessing the condition of your property, you not only maximise your rental income by up to 20%, but also minimise the risk of vacancies and legal disputes. A well-founded rental price determination is the cornerstone for successfully managing your real estate inheritance.

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FAQ

What happens if I set the rent too high?

Excessive rent can have several negative consequences: prolonged vacancy due to fewer interested parties, and a higher risk of a tenant legally challenging the rent and reclaiming overpaid amounts, especially in areas with rent control.

How do I account for a modernisation in the rent?

After a modernisation, you can add 8% of the apportionable costs to the annual rent. In the case of a comprehensive modernisation, your flat might even be exempt from the rent control, allowing for more flexible pricing. A thorough review is crucial here.

Can I charge more for a furnished apartment?

Yes, you may charge an additional fee for the furniture. This is usually calculated based on the current value of the furniture and adjusted for depreciation. The surcharge must be clearly stated in the rental agreement.

Where can I find the rent index for my city?

Since July 2022, cities and municipalities with over 50,000 inhabitants are required to provide rent indexes online for free. You can usually find these on your local government’s official website.

How can Auctoa help me determine the rental price?

Auctoa uses AI technology to analyse not only official rent indexes but also thousands of up-to-date comparable offers and market trends. Our assessment provides you with a data-driven, realistic rent price in just a few minutes and helps you optimise the return on your inherited property.

What is the cap limit?

The rent cap regulates rent increases in existing tenancies. It states that the rent cannot be increased by more than 20% within three years, and in some pressured markets, even only by 15%.

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auctoa – Your partner for precise appraisals and certified reports. Property valuation and land valuation. With digital expertise, expert knowledge, artificial intelligence, personalised advice, and comprehensive market insights.

Made in Germany

BASED IN HAMBURG

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HOSTED IN EUROPE

auctoa – Your partner for precise appraisals and certified reports. Property valuation and land valuation. With digital expertise, expert knowledge, artificial intelligence, personalised advice, and comprehensive market insights.

Made in Germany

BASED IN HAMBURG

GDPR-compliant

HOSTED IN EUROPE

auctoa – Your partner for precise appraisals and certified reports. Property valuation and land valuation. With digital expertise, expert knowledge, artificial intelligence, personalised advice, and comprehensive market insights.

Made in Germany

BASED IN HAMBURG

GDPR-compliant

HOSTED IN EUROPE