Published on and written by Cyril Jarnias
Buying, building, renting, or simply owning property in Germany involves navigating a thicket of laws, codes, and procedures. The country combines detailed civil law, strong tenant protections, tight energy regulation, and dense taxation. For an investor, an owner-occupier, a landlord, or even a simple purchaser, understanding the major pillars of this legal framework is essential to avoid unpleasant surprises.
This article details the main rules of the construction sector, based on current legal texts, court practices and interpretations, as well as recent market data.
The Legal Foundation of Real Estate Transactions
German real estate law is not based on a single text but on a set of complementary laws. The heart of the system, however, remains the Bürgerliches Gesetzbuch (BGB), the German Civil Code.
The German Civil Code (BGB) governs real estate sales, requiring the seller to transfer a property free of defects and the buyer to pay the price. Since 2018, it also precisely defines several construction contracts: building contract, contract with a consumer, architect/engineer contract, and developer contract.
For construction contracts, a German particularity is the importance of the VOB/B (Vergabe- und Vertragsordnung für Bauleistungen, Part B). This is not a law but a set of standard general conditions, developed by the German Committee for Construction Contracts, and mandatory for use by public authorities for their contracts. In practice, the VOB/B serves as a model for many private contracts, even though it only applies if the parties expressly agree to it.
Simultaneously, other texts regulate specific aspects:
– the Baugesetzbuch (BauGB, Federal Building Code) for urban planning and zoning,
– the Bauordnungen der Länder (state building regulations) for building permits and safety,
– the Gebäude-Energie-Gesetz (GEG, Building Energy Act) for energy performance,
– the Baustellenverordnung (Construction Site Safety Ordinance),
– the Bauproduktengesetz for construction products,
– the Bundes-Immissionsschutzgesetz for installations generating polluting emissions.
This layering of federal, regional, and local standards is a constant in Germany: the Federation defines the frameworks, the Länder implement building and planning law, and municipalities complete them with their local plans.
Property Purchase: Notary, Land Register, and Legal Security
Every real estate acquisition in Germany goes through a notary and the land register (Grundbuch). This is a formal requirement but also a particularly robust security system.
The Purchase Contract and the Notarial Formality
The Civil Code requires, in section 311b (1), that any contract which obligates the transfer of ownership of real estate be executed by a notarial deed. Without this formality, the contract is void (section 125 BGB). The nullity can, however, be “cured” if, despite the lack of proper form, the ownership was effectively transferred and entered in the Grundbuch, but this remains the exception and should never be sought.
Concretely, the standard process looks like this: the parties negotiate the essential points (identity, price, object of the sale), the notary drafts a contract proposal, then the parties appear at the notary’s office for a full reading of the deed, explanations, and signing. For contracts between a professional and a consumer, the law imposes a cooling-off period of about two weeks between the delivery of the draft and the signing, to avoid hasty commitments.
The contract must include: precise identification of the property (land reference and cadastral plan), the price and its payment terms, the date of transfer of beneficial use, the allocation of charges, and mention any easements, mortgages, or usage rights. It must also specify clauses regarding defects and warranties. For older buildings, sellers often exclude the warranty for defects, but this exclusion does not apply in case of fraud or for qualities expressly guaranteed.
The Role of the Grundbuch and Buyer Protection
There is no single national cadastre in Germany, but a network of land registers kept at the local courts (Amtsgerichte). Each plot, house, or apartment has its own sheet (Grundbuchblatt), which indicates in one section the identity of the owner(s), in another the easements and restrictions, and in a third the real security rights (mortgages, land charges).
The principle of the public faith of the land register (öffentlicher Glaube) guarantees that the purchaser can rely on the entries. To secure the transaction between signing and final registration, the notary has a priority notice (Auflassungsvormerkung) entered in favor of the buyer, thus preventing the seller from selling or encumbering the property to a third party with priority.
The transfer of ownership legally occurs only with the combination of two elements: the agreement to transfer (Auflassung), given before a notary, and the registration of the new owner in the Grundbuch. Between signing and this registration, the notary orchestrates secure payment, the repayment and cancellation of old mortgages, and the obtaining of necessary authorizations (tax certificate, waiver of a public right of pre-emption, etc.).
Notary, Registry, and Acquisition Tax Costs
The notary and registry fees are strictly regulated by the Court and Notary Fees Act (GNotKG). They are not negotiable and in practice represent between 1.5% and 2% of the purchase price. To these fees is added the real estate transfer tax (Grunderwerbsteuer), levied by each Land at a rate ranging from 3.5% to 6.5% of the price.
The following table provides an overview of Grunderwerbsteuer rates by Land:
| Land | Grunderwerbsteuer Rate |
|---|---|
| Bavaria | 3.5 % |
| Baden-Württemberg | 5.0 % |
| Bremen | 5.0 % |
| Lower Saxony | 5.0 % |
| Rhineland-Palatinate | 5.0 % |
| Saxony-Anhalt | 5.0 % |
| Thuringia | 5.0 % |
| Hamburg | 5.5 % |
| Saxony | 5.5 % |
| Berlin | 6.0 % |
| Hesse | 6.0 % |
| Mecklenburg-Western Pomerania | 6.0 % |
| Brandenburg | 6.5 % |
| North Rhine-Westphalia | 6.5 % |
| Saarland | 6.5 % |
| Schleswig-Holstein | 6.5 % |
In practice, the combined total of notary + registry + transfer tax often represents between 5% and 8% of the property price, to which real estate agent fees may be added.
Real Estate Agent Commission: The 2020 Reform
The allocation of real estate agent commission was long a gray area, heavily marked by local customs. Since December 23, 2020, a specific law (sections 656a to 656d BGB) harmonizes the rules for the sale of apartments and single-family homes when the buyer is a consumer.
Very common total commission rate, including VAT, on the price of a real estate sale.
The table below illustrates some common rates after a 50/50 split:
| Region / Land (examples) | Total Commission Rate | Seller’s Share | Buyer’s Share |
|---|---|---|---|
| Baden-Württemberg, Bavaria, Berlin, NRW, etc. | 7.14 % | 3.57 % | 3.57 % |
| Bremen, Hesse | 5.95 % | 2.98 % | 2.98 % |
| Hamburg | 6.25 % | ≈3.07 % | ≈3.18 % |
| Mecklenburg-Western Pomerania | 5.95 % | ≈2.87 % | ≈3.08 % |
This reform pursues a dual objective: to reduce ancillary costs for buyers and make brokerage service billing more transparent. Studies on several hundred thousand listings, however, show that some professionals have taken advantage of the new rule to increase the overall rate and maintain similar revenues, hence the importance for sellers to actively negotiate the commission—something only a small minority actually does.
Building Permits, Urban Planning, and “Turbo Construction”
Any construction or significant renovation operation of a building in Germany quickly encounters the duo BauGB (Federal Building Code) – Bauordnung (state building regulation). The erection, modification, change of use, or demolition of a building generally requires a building permit issued by the building supervisory authority (Bauaufsichtsbehörde).
The building permit certifies the project’s compliance with public law rules (urban planning, distances, fire safety, environment, monuments, etc.). Even for a project exempt from a permit (e.g., a small construction or limited garage), the client remains responsible for compliance with all regulations. In case of infringement, the administration can order demolition.
Planning follows a well-structured hierarchy: the federal state defines “Leitbilder” (guiding concepts), the Länder establish regional planning plans (Raumordnungspläne) that are binding on lower levels, the regions implement them, and municipalities develop a land-use plan for their entire territory (Flächennutzungsplan) as well as detailed plans (Bebauungspläne) for specific areas. The latter, for example, set the height, density, permitted types of use, and serve as a reference for permit processing.
To accelerate housing creation, particularly affordable housing, the 2021 Land Mobilization Act allows, in tight markets, to impose construction obligations or reserve sectors for social housing. It also authorizes, in cases of urgent need, authorities to directly order an owner to build (Baugebot).
In 2025, the federal government went further by adopting a draft law nicknamed “turbo construction,” aimed at experimenting with broad exemptions from planning law for housing projects. The idea is to allow, with the municipality’s agreement, deviations from the Building Code and associated regulations to facilitate residential projects, conversions, or changes of use. This experimental clause is expected to apply until around 2030, with an evaluation planned one year before the deadline. The government anticipates several tens of thousands of applications per year under this scheme.
Energy Performance, Climate, and Building Obligations
The building sector is at the heart of German climate policy. The Gebäude-Energie-Gesetz (GEG, Building Energy Act), which came into force in 2020, merged several earlier texts and established a single framework for the energy requirements of new and existing buildings, as well as for the integration of renewable energies.
The GEG imposes energy quality requirements, primary energy consumption limits, insulation standards, and makes the issuance of energy performance certificates (Energieausweis) mandatory for sales and rentals. For new buildings, it imposes a “nearly zero-energy building” standard, with annual primary energy consumption below a percentage of that of a reference building.
Since 2023, the reference level for new constructions is equivalent to the “EH55” standard, meaning they must consume a maximum of 55% of the energy of a typical building. The government initially planned to tighten this norm by imposing an “EH40” standard (40%) from 2025 but abandoned it for the current legislative period due to the additional costs it would have incurred for the construction sector.
Simultaneously, a highly debated reform of the GEG, often nicknamed the “Heating Law”, imposes a rapid increase in renewable energy for heating: any new heating system installation must operate at least 65% from renewable sources, with gradual application depending on the type of building and area. The long-term goal is for all buildings to be heated exclusively by renewable energies by 2045, which implies the gradual phase-out of old oil and gas boilers (mandatory replacement after 30 years, with exceptions).
Maximum percentage of federal grants for replacing a fossil fuel boiler with a renewable system from 2024 onward.
This regulatory pressure also affects the existing stock: obligations to insulate certain non-heated attic floors, to achieve very high energy efficiency levels and to cover 100% of their electricity with renewables by 2027.
Construction Contracts, Warranties, and Insurance
For anyone building in Germany, the contractual and insurance framework is just as important as the building permit or energy performance. The BGB, in sections 631 to 650v, governs contracts for work and services, including construction contracts. Since 2018, specific provisions regulate relations with consumers in construction contracts, as well as the work of architects and engineers.
A key element for the contractor is the right to a payment guarantee and a real security: section 650e BGB allows them, if the client owns the land, to demand the registration of a construction mortgage in the land register to secure their claim. They can also demand a bank guarantee covering the remaining amount due, plus about 10% for ancillary claims. If the guarantee is not provided within a reasonable period, the contractor can suspend work.
Application of the VOB/B typically involves a performance bond and a payment guarantee, each of about 10% of the gross contract amount. The client can retain up to 10% of progress payments (often reduced to 5% at the final account). Caution: case law strictly limits these clauses in general terms and conditions, notably prohibiting “on-demand” guarantees deemed too unbalanced.
Contractual deadlines must be clearly qualified as “agreed deadlines” to be fully enforceable; faulty non-compliance with these deadlines can justify damages and, if provided for, penalties. The acceptance of works (“Abnahme”) plays a central role: it triggers the transfer of risk, the start of warranty periods, and often the final payment date. If the client, duly notified, does not decide within a reasonable time on a proposed acceptance after completion, the law may provide for “tacit acceptance”.
In Germany, architects are often legally required by the Länder to carry professional liability insurance. For construction companies, although not mandatory, it is common, especially on large sites, to take out insurance such as liability insurance, all-risk construction insurance, or a specific project-based construction works insurance policy.
Statutes of limitations for claims are also regulated: for construction works and related planning services, the BGB generally provides for a period of five years from acceptance (two years for movable goods), unless otherwise agreed. Under VOB/B, contractual periods of one to four years are frequently found, sometimes longer for maintenance, provided the duration is neither unlimited nor manifestly excessive, in which case it would be unenforceable.
Real Estate Taxation: Purchases, Rental Income, and Capital Gains
The tax environment is an integral part of real estate law in Germany. For purchases, we have already mentioned the Grunderwerbsteuer and notary/registry fees. During ownership, the property is subject to the Grundsteuer, the annual property tax levied by municipalities, and to income tax in case of rental. Upon resale, specific rules determine the taxation of capital gains.
Property Tax and the Grundsteuer Reform
The Grundsteuer applies to all built and unbuilt properties. A major reform, which came into force in 2025, modernized a system previously based on obsolete cadastral values (dating from 1935 in the East, 1964 in the West). Henceforth, the tax base takes into account the type of property, area, location, age, and other parameters, according to a federal model or models specific to certain Länder that exercised an option clause.
The final amount results from a three-step formula: base value × federal base rate × municipal coefficient (Hebesatz). The latter varies significantly from one city to another and explains the differences in bills between, for example, an apartment in a small town and a single-family house in a sought-after Berlin neighborhood.
Rental Income and Capital Gains Taxation
Rental income is taxable as personal income, with progressive rates that can reach 45%, plus the solidarity surcharge. However, the investor can deduct many expenses: loan interest, condominium charges, maintenance and repair work, management and insurance fees, depreciation of the building (generally 2% per year, or 3% for some recent properties, with enhanced regimes for social housing or listed buildings).
The sale of a property held in private assets is subject to the ‘Spekulationssteuer’ (speculation tax) if it occurs within 10 years of its acquisition. The capital gain is then included in taxable income and taxed according to the income tax scale. Taxation is avoided if the property served as the primary residence in the year of sale and the two preceding years. After 10 years of ownership, the capital gain is exempt.
This ten-year threshold plays a major role in wealth strategies: many investors organize to sell after this period to neutralize capital gains tax. Conversely, if the activity is considered commercial (e.g., more than three sales in five years), all transactions may be reclassified as a property trading business, resulting in professional income tax, trade tax (Gewerbesteuer), and, most often, VAT.
Inheritance, Gifts, and Estate Transfers
In case of inheritance or gift, the Erbschaft- und Schenkungsteuer (Inheritance and Gift Tax) applies. The tax is levied on the share received by each beneficiary, according to a progressive scale and allowances based on the degree of kinship. For example, a child benefits from an allowance of €400,000, a spouse €500,000, a grandchild €200,000, parents and grandparents €100,000, while more distant relatives (siblings, nephews, friends) only have an allowance of €20,000. Real estate located in Germany is always taxable in Germany in this context, even if the beneficiary resides abroad, unless bilateral treaties apply.
Certain assets are exempt from inheritance tax under conditions. This is the case for the surviving spouse’s or children’s primary residence, within certain area limits and provided it is retained for ten years. Businesses, agricultural, and forestry operations also benefit from advanced exemption regimes, subject to compliance with preservation and employment commitments.
Tenant Law and Rent Regulation
Germany is often described as a “country of tenants”, with more than half the population housed in the rental sector. This reality translates into an extremely protective tenancy law, very detailed in the BGB.
A residential lease is in principle indefinite, terminable by the tenant with three months’ notice. The landlord, however, can only give notice for legitimate reasons – for example, for personal use (Eigenbedarf) or serious breach of contract – and with a notice period that lengthens with the tenant’s seniority (three, six, or nine months). Eviction is strictly regulated and requires a court order.
The base rent can only be increased by respecting the local average rent (Mietspiegel) and a cumulative cap of 20% over three years (15% in tight markets). For reletting in a tight market, the Mietpreisbremse (rent brake) limits the rent demanded to 10% above the local reference rent, except for new buildings or after major renovations.
Energy efficiency or comfort modernization works entitle, under conditions, to a rent increase, but again heavily regulated: only a limited percentage of costs can be passed on, with a cap on the increase per square meter and the possibility for the tenant to claim hardship if the burden becomes unbearable relative to their income.
The security deposit is capped at three months’ rent excluding utilities. It must be placed in a separate, interest-bearing account for the tenant’s benefit. At the end of the lease, the landlord has a reasonable period, generally a few months, to settle utility bills and return the balance to the tenant.
Finally, some recent national rules, such as the cost-sharing for the carbon tax on heating based on the building’s energy performance, reinforce the incentive for landlords to improve their stock, at the risk of bearing most of these costs for poorly insulated apartments.
Construction Market: Permits Falling, Demand Rising
Beyond the texts, figures from Federal Statistics illuminate market dynamics. Between 2020 and 2024, there is a clear drop in the number of building permits issued, both in terms of buildings and authorized dwellings. Floor area and estimated construction costs follow the same trend.
The following table summarizes some key indicators:
| Year | Buildings Authorized | Dwellings Authorized | Living Area (m²) | Estimated Construction Costs (M€) |
|---|---|---|---|---|
| 2020 | 232,208 | 368,589 | 37,058,000 | 120,597 |
| 2021 | 248,688 | 380,736 | 38,780,000 | 130,338 |
| 2022 | 217,586 | 354,162 | 35,625,000 | 134,990 |
| 2023 | 163,906 | 259,639 | 24,589,000 | 112,992 |
| 2024 | 145,010 | 215,289 | 20,080,000 | 104,060 |
This contraction, linked to rising costs, tightening energy standards, and the economic climate, contrasts with estimated needs, particularly for affordable housing. Short-term forecasts for new housing permits show a slight recovery but remain below the peaks reached in late 2019. It is this structural gap that justifies initiatives like “turbo construction,” relaxations of building law, and increased housing subsidies.
For the real estate investor, the environment is characterized by a dual movement: a dense and demanding, sometimes unstable, regulatory framework, and a chronic housing shortage in many urban areas, which supports rental demand and, in the medium term, property values.
Conclusion: A Constraining but Predictable Framework
German real estate law is characterized by its formalism, its technicality, and a strong orientation towards protecting the public interest (tenants, environment, urban planning). Mandatory notarial contracts, land register with public faith, detailed codification of construction contracts, rent regulation, ambitious energy standards, highly structured taxation: all these elements require meticulous preparation.
The formalism of the German real estate market offers great legal security. To master risks, a buyer must be properly advised, a landlord must anticipate energy developments, a builder must rely on proven contractual standards and have good insurance coverage. The key, for any actor (private individual or professional, German or foreign), is to consider any real estate transaction not as a simple administrative act, but as a complete legal process. Each stage (planning, financing, contract, permit, execution, taxation) is governed by a precise set of laws and regulations that it is imperative to know and respect.
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Cyril Jarnias is an independent expert in international wealth management with over 20 years of experience. As an expatriate himself, he is dedicated to helping individuals and business leaders build, protect, and pass on their wealth with complete peace of mind.
On his website, cyriljarnias.com, he shares his expertise on international real estate, offshore company formation, and expatriation.
Thanks to his expertise, he offers sound advice to optimize his clients' wealth management. Cyril Jarnias is also recognized for his appearances in many prestigious media outlets such as BFM Business, les Français de l’étranger, Le Figaro, Les Echos, and Mieux vivre votre argent, where he shares his knowledge and know-how in wealth management.
