grundstueckskaufvertrag

/immobilien-grundbuchrecht:grundstueckskaufvertrag

Purpose

The real estate purchase contract is the most form-strict everyday instrument of German civil law: without notarial recording it is void, and any ancillary agreement not recorded along with it drags the entire contract into nullity. At the same time it is a payment and security mechanism — the buyer should pay only once he securely obtains ownership, the seller should transfer only once he securely has the money. This skill drafts and reviews the contract along both axes: validity (form, instruction, certainty) and transaction security (priority notice, maturity, release from encumbrances).

Inputs

Perspective: seller draft / buyer review of a notary's draft / handling of a disrupted transaction
Subject matter of purchase: land register sheet, cadastral district, cadastral section, parcel, size; in the case of condominium ownership, co-ownership share and separate ownership unit
Purchase price, allocation to land / building / inventory sold along with it, buyer's financing
Land register status in Divisions I, II and III (encumbrances, rights, land charges)
Parties: natural persons, companies (in the case of a GbR: entry in the company register), community of heirs, persons under guardianship, minors
Pre-emptive rights, approval requirements (Grundstücksverkehrsgesetz, redevelopment law, land consolidation, WEG manager's consent)
Known defects, investigations carried out, assurances in the exposé or during the viewing
Is the buyer a consumer and the seller an entrepreneur (§ 17(2a) sentence 2 no. 2 BeurkG)?

Sub-agent architecture

Researcher (../../agents/researcher.md) obtains BGB, BeurkG and GBO provisions with URL, the commentary passages (Grüneberg, MüKoBGB, Winkler BeurkG) and the BGH lines on deceit and quality agreement.
Drafter (../../agents/drafter.md) prepares the contract draft or review memorandum with maturity cascade and schedule of deadlines.
Reviewer (../../agents/reviewer.md) reviews completeness of notarization, priority notice protection, release from encumbrances and documentation of instruction.

Procedure

1. Mandatory notarization and completeness principle (§ 311b(1) BGB)

A contract by which one party undertakes to transfer or acquire ownership of a plot of land requires notarial recording. Covered is the entire agreement: Everything that according to the parties' intention is to be part of the transaction must be in the deed — broker agreements, inventory lists, renovation assurances, repurchase rights, payment modalities. An outsourced ancillary agreement renders the entire contract void as to form (§ 125 BGB), not only the agreement.

Practical trap understatement of the purchase price in the deed: If a lower purchase price than the one actually intended is recorded in the deed, the recorded contract is void as a sham transaction (§ 117 para. 1 BGB) and the one actually intended is void for lack of form. Cure occurs only upon conveyance and registration (§ 311b para. 1 sentence 2 BGB) — until then each party bears the full risk of unwinding.

2. Duty to advise and the two-week period (§ 17 BeurkG)

The notary must ascertain the intention of the parties, clarify the facts, advise on the legal implications and reproduce the declarations clearly and unambiguously; doubts and advice given must be noted in the deed. In consumer contracts, the party who is a consumer should receive the draft two weeks before the notarization (§ 17 para. 2a sentence 2 no. 2 BeurkG). The period is a non-mandatory provision: its violation does not render the contract invalid, but can trigger official liability and damages and is a strong argument in a dispute over protection against undue haste. The notary is impartial — he does not represent either party; the pursuit of the buyer's or seller's interests is a lawyer's task.

3. Conveyance (§ 925 BGB)

The conveyance is the real agreement on the transfer of ownership; it must be declared in the simultaneous presence of both parties before the notary and is hostile to conditions and time limits (§ 925 para. 2 BGB). Therefore, in practice it is indeed recorded together with the deed, but the notary is instructed to file the application for registration only after payment of the purchase price . This instruction to the notary — not a condition of the conveyance — is the actual security mechanism in favor of the seller. The transfer of ownership occurs only upon agreement and registration (§ 873 BGB).

4. Priority notice of conveyance (§ 883 BGB, § 885 BGB)

The priority notice secures the buyer's contractual claim to transfer of ownership in rem: later dispositions by the seller are relatively ineffective against the holder of the priority notice (§ 883 para. 2 BGB), and the rank of the future right is determined by the priority notice (§ 883 para. 3 BGB). It is registered on the consent of the seller or on the basis of a preliminary injunction (§ 885 para. 1 BGB). In practice: No purchase price without a registered priority notice. The priority notice also protects the buyer in the seller's insolvency and against interim dispositions as well as notices of compulsory auction.

5. Conditions for maturity of the purchase price payment

The purchase price does not become due upon conclusion of the contract, but only when the notary issues the notice of maturity to the buyer. The cascade is:

priority notice of conveyance registered with the correct rank (only with encumbrances permitted in the contract),
documents for release from encumbrances the creditors to be redeemed are available to the notary,
required approvals and certificates are available (administrator's consent, waiver of the municipality's pre-emption right under § 28 BauGB, guardianship or family court approval),
no other registration obstacles.

If a stage is missing, the purchase price is not due; a reminder nevertheless issued does not give rise to default.

6. Release from encumbrances and power to encumber

Release from encumbrances: Land charges of the seller entered in Division III are redeemed out of the purchase price. The notary obtains the release authorization subject to a trust condition and pays the redemption amount directly to the creditor bank; only the remaining amount goes to the seller. Non-valuated land charges must be treated separately — the seller has a claim to reconveyance.

Power to encumber: The buyer needs the property as loan security before he is the owner. The seller therefore authorizes him to encumber the property with land charges even before transfer of ownership — limited to the purchase price financing, with purpose declaration in favor of the seller (securing only the purchase price portion) and the condition that the loan proceeds be directed exclusively to the notary's escrow account or directly to the seller. A power to encumber without this purpose restriction is a serious drafting error. In depth: /immobilien-grundbuchrecht:grundschuld-sicherungsrecht.

7. Transfer of risk, benefits and burdens (§ 446 BGB)

With handover the risk of accidental loss and accidental deterioration passes to the buyer; from handover he receives the benefits and bears the burdens (§ 103 BGB). In practice, transfer of possession is contractually set for the day of full payment of the purchase price and at that point the transfer of benefits, burdens, traffic safety obligations and insurance is also regulated. For rented properties, purchase does not break the lease (§ 566 BGB) additionally applies; rent deposits and operating cost prepayments must be accounted for separately.

8. Liability for material defects and the exclusion "bought as inspected" (§ 434 BGB, § 444 BGB)

The exclusion of warranty is standard in the purchase of used properties, but it has three hard limits:

Bad faith (§ 444 BGB): Anyone who conceals a defect subject to disclosure cannot rely on the exclusion. In particular, circumstances that the buyer cannot recognize during an inspection and that are recognizably significant for his decision are subject to disclosure — missing building permit, moisture damage behind cladding, contaminated sites, fungal infestation. A missing building permit is a material defect; the decisive factor is whether a permit is required at the time of transfer of risk (BGH, judgment of 12.04.2013 – V ZR 266/11 — verified: https://dejure.org/dienste/vernetzung/rechtsprechung?Gericht=BGH&Datum=2013-04-12&Aktenzeichen=V%20ZR%20266/11). If basement rooms are advertised as living space although the building-law permit is missing, this constitutes fraudulent misrepresentation under § 123(1) BGB (BGH, judgment of 27.06.2014 – V ZR 55/13 — verified: https://dejure.org/dienste/vernetzung/rechtsprechung?Gericht=BGH&Datum=2014-06-27&Aktenzeichen=V%20ZR%2055/13).
Quality guarantee and quality agreement: An expressly promised characteristic ("roof newly covered in 2019", "living area 142 m²") takes precedence over the general exclusion. Formula: The exclusion never covers an agreed quality.
Buyer's knowledge (§ 442 BGB): In the case of knowledge, the rights lapse in any event; in the case of grossly negligent ignorance, only if the seller has not acted fraudulently or has not assumed a guarantee.

The clause "bought as inspected" is therefore no carte blanche: It covers only what was recognisable during an inspection, and never anything fraudulently concealed.

Deterministic calculation

The transaction value of the real estate purchase contract is the purchase price; it governs notary costs (GNotKG), lawyers' fees and, in the event of a dispute, court costs. The calculator in ../../../scripts/legal_calc/ performs only the arithmetic — the determination of the transaction value, the valuation of inventory sold along with it and the question of which fee rate applies remain legal inputs. A GNotKG module is not implemented; notary costs must be determined manually against the KV GNotKG.

# Anwaltsgebühren für die Begleitung eines Kaufvertrags über 450.000 EUR
python -m scripts.legal_calc.cli rvg --wert 450000 --posten geschaeft

# Gerichtskosten erster Instanz bei Streit über die Kaufpreisrückzahlung
python -m scripts.legal_calc.cli gkg --wert 450000 --faktor 3.0

# Zwei-Wochen-Frist § 17 Abs. 2a BeurkG: Entwurf am 15.01.2026 zugeleitet
python -m scripts.legal_calc.cli frist --ereignis 15.01.2026 --menge 2 --einheit wochen --land BY

--json provides the calculation steps together with the citation of the provision. The RVG/GKG tables carry a standfield; check against the current Annex 2 before use.

Sources

Statutes

§ 311b BGB (mandatory notarisation), § 125 BGB, § 117 BGB
§ 873 BGB, § 925 BGB (conveyance), § 883 BGB, § 885 BGB (priority notice)
§ 434 BGB, § 442 BGB, § 444 BGB, § 446 BGB, § 103 BGB, § 566 BGB
§ 17 BeurkG (duty to advise), § 13 GBO, § 19 GBO

Commentaries

Grüneberg, in: Grüneberg, BGB, 84th ed. 2025, § 311b marginal no. 1 et seq.; § 444 marginal no. 1 et seq.
Ruhwinkel, in: MüKoBGB, 9th ed. 2023, § 311b marginal no. 1 et seq.
Kanzleiter, in: MüKoBGB, 9th ed. 2023, § 925 marginal no. 1 et seq.
Winkler, BeurkG, 20th ed. 2022, § 17 marginal no. 1 et seq.

Case law

BGH, judgment of 12.04.2013 – V ZR 266/11 (missing building permit as a defect; passing of risk; fraudulent concealment) — verified: https://dejure.org/dienste/vernetzung/rechtsprechung?Gericht=BGH&Datum=2013-04-12&Aktenzeichen=V%20ZR%20266/11
BGH, judgment of 27.06.2014 – V ZR 55/13 (avoidance for fraudulent misrepresentation; advertising basement rooms as living space without a permit; burden of proof) — verified: https://dejure.org/dienste/vernetzung/rechtsprechung?Gericht=BGH&Datum=2014-06-27&Aktenzeichen=V%20ZR%2055/13
On the principle of completeness under § 311b(1) BGB and on the invalidity for lack of form of outsourced ancillary agreements, the relevant BGH case law must be consulted [unverifiziert - prüfen]. Do not adopt any case number without verifying it yourself in juris / Beck-Online.

Drafting aid — priority notice, due date, warranty

§ __ Auflassungsvormerkung
Zur Sicherung des Anspruchs des Käufers auf Übertragung des Eigentums
bewilligt der Verkäufer und beantragen die Beteiligten die Eintragung einer
Auflassungsvormerkung gemäß § 883 BGB zugunsten des Käufers im Grundbuch
von <Gemarkung>, Blatt <Nr.>, Abteilung II, im Rang nach den in dieser
Urkunde ausdrücklich zugelassenen Belastungen und im Übrigen an erster
Rangstelle. Der Notar wird angewiesen, die Löschung der Vormerkung zu
beantragen, sobald der Käufer als Eigentümer eingetragen ist.

§ __ Fälligkeit des Kaufpreises
Der Kaufpreis ist binnen zehn Tagen nach Zugang der Mitteilung des Notars
fällig, dass
  a) die Auflassungsvormerkung rangrichtig eingetragen ist,
  b) die Unterlagen zur Lastenfreistellung der nicht übernommenen Rechte
     in Abteilung II und III beim Notar vorliegen,
  c) etwa erforderliche Genehmigungen und Vorkaufsrechtszeugnisse
     (§ 28 BauGB, Verwalterzustimmung) vorliegen,
  d) keine sonstigen Eintragungshindernisse bestehen.

§ __ Auflassung und Anweisung an den Notar
Die Beteiligten sind sich über den Eigentumsübergang einig (Auflassung) und
bewilligen und beantragen die Eintragung des Käufers als Eigentümer. Der
Notar wird angewiesen, von der Auflassung erst Gebrauch zu machen und den
Eintragungsantrag erst zu stellen, wenn der Verkäufer den vollständigen
Kaufpreiseingang bestätigt hat oder der Käufer die Zahlung nachweist.

§ __ Sachmängel
Der Kaufgegenstand wird verkauft, wie er steht und liegt; Ansprüche und
Rechte des Käufers wegen Sachmängeln sind ausgeschlossen. Der Ausschluss
gilt nicht für Arglist (§ 444 BGB), für Schäden aus der Verletzung des
Lebens, des Körpers oder der Gesundheit sowie für die nachstehend
vereinbarte Beschaffenheit: <Aufzählung>. Der Verkäufer erklärt, dass ihm
über die in dieser Urkunde genannten hinaus keine verborgenen Mängel,
Altlasten oder Abweichungen von der Baugenehmigung bekannt sind.

Output format

GRUNDSTÜCKSKAUFVERTRAG — <Entwurf / Prüfung> — <Mandat-ID> — <Datum>

I.    Perspektive / Kaufgegenstand   <Grundbuch, Gemarkung, Flurstück>
II.   Beurkundungszwang § 311b       [✅ / ❌]
      - Vollständigkeit aller Abreden [✅ / ⚠️ Nebenabrede außerhalb]
      - Kaufpreis vollständig verbrieft [✅ / 🔴 Unterverbriefung]
III.  Belehrung § 17 BeurkG          [✅ / ⚠️]
      - Zwei-Wochen-Frist Abs. 2a    Entwurf am <Datum>, Beurkundung <Datum>
IV.   Auflassung § 925 BGB           [beurkundet / offen]
      - Notaranweisung Kaufpreis     [✅ / ❌]
V.    Auflassungsvormerkung §§ 883, 885  Rang: <…>   [✅ / offen]
VI.   Fälligkeitsvoraussetzungen     a) <…> b) <…> c) <…> d) <…>
VII.  Lastenfreistellung             Abt. II: <…>  Abt. III: <…>
      Belastungsvollmacht            [zweckgebunden ✅ / 🔴 ungebunden]
VIII. Gefahr-/Nutzen-/Lastenwechsel  Stichtag: <Datum>   § 446 BGB
      Mietverhältnisse § 566 BGB     [N/A / Kaution + Betriebskosten]
IX.   Sachmängel                     Ausschluss [✅]  Grenzen: Arglist § 444,
      vereinbarte Beschaffenheit     <Aufzählung>
X.    Geschäftswert / Kosten         <Wert> — RVG/GKG s. Berechnung
XI.   Offene Punkte / Genehmigungen  <…>

Ergebnis: <versandfertig / nachbessern / nicht unterschriftsreif>
Risiko Rückabwicklung: [🟢 / 🟡 / 🔴]

Risks / typical mistakes

Collateral agreement outside the deed — broker agreement, inventory list or renovation promise not recorded in the deed; the consequence is the nullity of the entire contract under Section 125 BGB, not just of the agreement.
Understatement of the purchase price in the deed — the recorded contract is void as a sham transaction, the intended contract is void as to form; cure only upon conveyance and registration.
Payment of the purchase price without a registered priority notice — the buyer pays unsecured and bears the seller's full insolvency and interim disposal risk.
Power of encumbrance without purpose restriction — the buyer can encumber the still third-party property beyond the purchase price; the proceeds must necessarily flow to the notary or the seller.
Conveyance made subject to a condition — Section 925(2) BGB is hostile to conditions; security is provided via the notarial instruction, not via a condition.
Warranty exclusion overestimated — "bought as inspected" does not help in cases of deceit (Section 444 BGB), nor in the case of agreed quality, nor in the absence of a building permit.
Transfer of risk and burdens not synchronized with handover — insurance, traffic safety obligations and operating costs diverge; for rented properties, deposit and advance payments are forgotten.
Approvals overlooked — the municipality's right of first refusal (Section 28 BauGB), WEG manager's consent, guardianship or family court approval; without them the purchase price is not due.