Blog / Rentals / Renting out a condominium: Become a successful landlord

Renting out a condominium: Become a successful landlord

Oana Tudose, Real estate editor
24 March 2026 / 12 Min. reading time

Choosing to buy your own apartment and rent it out offers you numerous advantages. You receive regular rental income that can support your retirement planning. At the same time, you build equity because the property continuously gains value through amortization and appreciation.

Modern, well-furnished apartments in sought-after Berlin neighborhoods such as Neukölln, Wedding or Prenzlauer Berg are particularly popular with tenants. You can often achieve higher rents here than in peripheral locations. Demand for high-quality, fully furnished apartments is steadily increasing, especially among international professionals and young working people.

Yields and appreciation potential

A well-chosen condominium can generate gross yields of 3 to 6 percent per year. Even higher returns are possible in up-and-coming districts. In addition to rental income, you benefit from long-term appreciation, which has historically been 2 to 4 percent annually in metropolitan areas like Berlin.

Refurbished period buildings or modern new builds with high-quality fittings are particularly attractive. These apartments are easier to rent and often command premium rents. Pay attention to energy-efficient buildings that keep ancillary costs low and are especially attractive to tenants.

Requirements and preparation

Before renting out your condominium, you should review the key prerequisites. Solid financing is the foundation of any successful rental. Calculate all costs realistically: purchase price, additional purchase costs, ongoing operating costs and any modernization measures.

Location largely determines the success of your rental. Apartments in central districts with good public transport, shopping options and leisure amenities are much more in demand. Also review the infrastructural development of the neighborhood. New subway stations or commercial developments can positively impact attractiveness and, therefore, rent levels.

Financing options for landlords

As a landlord, you have various financing options. Traditional full financing with a mortgage is widespread but requires sufficient cash for incidental purchase costs and solid creditworthiness. Rental income can be taken into account when assessing your creditworthiness, which can improve your financing prospects.

Forward loans can be useful in times of rising interest rates to lock in favorable terms. You should also consider alternative financing options such as building society loans for modernizations or employer loans. A realistic calculation of the total return after deducting all financing costs is essential.

 

Bright, minimalist living room with a white sofa, coffee table, and record player by the window.

 

Choosing the right apartment

Selecting the right condominium is crucial for your success as a landlord. Focus on an attractive location with strong infrastructure, since these factors largely determine rentability and achievable rents. Central districts with public transport links and shopping facilities are especially popular with tenants.

The size of the apartment should match the target group: 1–2 rooms for singles and couples, 3–4 rooms for families. In university towns, apartments suitable for shared living arrangements are also in high demand. Modern fittings and good energy performance reduce future modernization costs and enable higher rents.

Key criteria when selecting a property

Examine the building’s condition closely. A maintenance backlog can be costly and reduce your returns. A current energy performance certificate provides information on energy efficiency and expected ancillary costs. Low consumption values are an important selling point for tenants.

The homeowners’ association also plays a role. Review management costs, planned refurbishments and the level of the reserve fund. A well-organized property management company makes a landlord’s life much easier. Find out about upcoming major repairs or modernizations that could lead to additional costs.

Legal fundamentals of renting

As the landlord of a condominium, you must comply with various legal provisions. Tenancy law comprehensively regulates the relationship between you and your tenant. There are clear rules from the design of the rental agreement to termination that protect both parties.

The rent cap limits the level of rent for new leases in many cities. Find out about local regulations and the current rent index. Following modernizations, you can increase the rent under certain conditions, but only within statutory limits.

Tenancy agreement and key clauses

A legally secure rental agreement protects both parties from later conflicts. Use proven contract templates and tailor them to your situation. Important points include the exact property description, start date and rent amount, ancillary costs and the security deposit. This may not exceed three months’ net cold rent.

Cosmetic repairs can be transferred to the tenant, but only if the unit was handed over in a renovated state. Minor repair clauses are permissible up to a certain threshold. Formulate all clauses clearly and understandably to avoid later disputes. Legal counsel can be helpful when drafting the contract.

Condominium rental taxes: Tax aspects

The tax aspects of a rented condominium are complex and present both opportunities and pitfalls. As a landlord, you must declare rental income in your tax return as income from letting and leasing. At the same time, you can deduct numerous costs as advertising expenses.

The most important depreciation method is straight-line depreciation (AfA) at 2 percent per year of the building’s acquisition or construction costs. Land cannot be depreciated, so an allocation between building and land is required. This depreciation runs over 50 years and significantly reduces your tax burden.

Optimizing depreciation and advertising expenses

You can deduct all expenses that are directly related to the rental as advertising expenses. These include management costs, maintenance costs, insurance and interest on financing. Travel costs to the property and costs for tenant acquisition are also deductible.

Distinguishing between immediately deductible repair and maintenance expenses and modernization costs that must be depreciated over several years is particularly important. Repairs and maintenance can be fully deducted immediately, while value-enhancing measures must be depreciated over their useful life.

Speculation tax and deadlines

If you sell the condominium within ten years of purchase and it was rented, speculation tax will apply. For owner-occupation the period is only two years. You should take this rule into account in your long-term planning.

The tax savings from depreciation lead to a corresponding reduction in the tax book value. This can result in a higher taxable gain upon a later sale. Careful tax planning with a tax advisor is therefore advisable.

 

Moderne, offene Küche mit Kochinsel, Edelstahlgeräten und hellen Holzfußböden.

 

Renting out a condominium and owners’ association approval: What to consider?

Special rules apply to rentals in condominium owners’ associations (WEG). In principle, you can rent out your condominium freely without needing the consent of the other owners. This right is firmly anchored in the Condominium Act and cannot be restricted by resolutions of the owners’ association.

However, there are exceptions. Restrictions may exist for furnished short-term rentals or commercial use. These must already be set out in the declaration of division or the community bylaws. Resolutions adopted later that conflict with existing rentals are invalid.

Special rules and restrictions

The owners’ association can restrict certain types of use if they could impair the common property or other owners. Vacation rentals or frequently changing short-term tenants can be perceived as disruptive. Therefore, carefully review the declaration of division and the house rules before purchasing.

Approval from the association may be required for commercial use or changes in use. This applies, for example, to renting the unit as an office or medical practice. Structural changes for rental purposes, such as installing a separate kitchen, also often require the community’s consent.

Communication with property management

Good cooperation with the property management company makes renting significantly easier. Inform the management about planned rentals and promptly report tenant changes. This is important for the service charge statement and any necessary consumption readings.

In case of problems with tenants, the property management can often mediate, particularly in cases of house rule violations or complaints from other residents. Clarify in advance which services the management provides and what costs will be incurred.

Renting out a condominium, what to watch for: Practical tips

Successful renting requires more than just a solid lease. You should choose your tenants carefully and aim for a trusting working relationship. Conscientious tenant screening is essential for stress-free renting.

Ask prospective tenants for a self-disclosure form, proof of income and a SCHUFA report. This helps you quickly assess financial reliability. Net income should be at least three times the gross rent. If in doubt, a parental guarantee or rent default insurance can provide additional security.

Professional marketing and tenant search

An appealing presentation of the apartment is crucial for a quick rental at good terms. Professional photos and a meaningful description significantly increase inquiries. Use different portals and, if necessary, place ads in local media.

Plan viewing appointments in a structured way. Group several interested parties into one appointment and let them gain a first impression alongside each other. This can speed up decision-making and save you time. Prepare all key documents: floor plan, energy certificate and information about the neighborhood.

Management and ongoing support

As a landlord, you are responsible for ongoing tenant support. Repairs and maintenance measures must be carried out promptly. Keep a list of reliable tradespeople and service providers to respond quickly.

The annual service charge statement is required by law and must be prepared by December 31 of the following year. Keep all receipts carefully and allocate the costs fairly among the different units. Professional software or a tax advisor can be very helpful.

Avoiding common mistakes

Many aspiring landlords make mistakes that can be costly. The most common problems arise from inadequate preparation and a lack of knowledge of legal requirements. An overly emotional decision when purchasing the property can be just as problematic as uncalculated financing.

Do not underestimate the effort involved in tenant management. In addition to the rental itself, there are regular tasks such as coordinating repairs, preparing service charge statements and tenant support. Plan enough time or consider hiring a property manager.

Realistic return expectations

Many newcomers have overly optimistic return expectations and fail to account for all costs. In addition to financing, there are ongoing expenses for management, maintenance and taxes. You must also factor in rent losses and vacancy periods.

A solid calculation accounts for all factors: purchase price, financing costs, ongoing operating costs and realistic rental income. Calculate a net yield of 2 to 4 percent and plan a buffer for unforeseen expenses. Only then will your investment be successful in the long term.

Digitalization and modern management

Digitalization is also transforming property management. Modern software solutions simplify tenant management, automate statements and increase transparency. Online rent index queries and digital communication with tenants are becoming standard.

Smart home technologies can increase the apartment’s attractiveness while saving costs. Intelligent thermostats, LED lighting and efficient household appliances reduce ancillary costs and are very popular with environmentally conscious tenants.

Future trends in renting

Sustainability is becoming increasingly important to tenants. Energy-efficient apartments with low ancillary costs have clear rental advantages. Investments in energy upgrades often pay off through higher rents and reduced vacancy risks.

Flexible rental models are gaining in importance. From furnished apartments for commuters to co-living concepts for young professionals, new demand segments are emerging. Those who adapt early to these trends can benefit from higher returns and more stable occupancy.

Using professional support

Renting out a condominium requires extensive knowledge in various areas. From legal advice and tax optimization to practical tenant management, there are many pitfalls. Professional support can therefore pay off quickly.

An experienced real estate agent knows the local market well and can assess realistic rent levels. They handle marketing, conduct viewings and carefully screen prospective tenants. The brokerage fee is usually a worthwhile investment for hassle-free renting.

When property management is worthwhile

With several properties or limited personal time, professional property management can make sense. It handles complete tenant management, from tenant care and repair coordination to service charge statements. Costs are usually around 20 to 30 euros per apartment per month.

Even with just one rented apartment, management can be worthwhile if, for example, you live abroad or are very busy professionally. Professional care ensures satisfied tenants and can reduce vacancy periods.

 

Cozy living room with a brown leather sofa, plants, and an open kitchen in the background.

 

Conclusion: Successfully renting out your condominium

Renting out a condominium can be an attractive source of income and an investment asset. With the right preparation, solid financing and professional advice, your chances of success increase significantly. A realistic calculation of all costs and revenues, as well as compliance with legal and tax requirements, is essential.

At E-Homes you will find modern, high-quality apartments in sought-after Berlin locations that are ideal for renting. Our experts will be happy to advise you on all questions regarding purchase and subsequent rental. Contact us for a non-binding consultation and start your future as a successful landlord.

Frequently asked questions about renting out a condominium

Do I need the owners’ association’s permission to rent out my condominium?

No, you generally do not need the owners’ association’s consent for standard residential rentals. This right is protected by law. Exceptions can apply to special types of use such as vacation rentals or commercial letting if stipulated in the declaration of division.

What taxes do I have to pay as a landlord?

You must pay tax on rental income as income from letting and leasing. However, you can deduct all rental-related costs as advertising expenses, including straight-line depreciation of 2 percent of the building’s acquisition or construction costs per year. If you sell within 10 years, speculation tax applies.

How do I find reliable tenants for my apartment?

Careful tenant selection is crucial. Request a tenant self-disclosure, current proof of income and a SCHUFA report. Net income should be at least three times the gross rent. Conduct personal interviews and, if necessary, obtain references from previous landlords.

What ongoing costs are incurred when renting?

In addition to financing costs, you will have expenses for maintenance, management, insurance and taxes. Budget around 1 to 2 percent of the purchase price per year for repairs and modernizations. Also factor in rent losses and vacancies.

Can I increase the rent at any time?

Rent increases are only possible under certain conditions. For existing leases, an adjustment to the local comparative rent is permitted every 15 months by a maximum of 20 percent over three years. After modernizations, 8 percent of the costs per year can be added to the rent.

Written by
Oana Tudose
Expert in property law and financial planning with many years of experience. Author on all topics related to property, inheritance and legal issues.