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Art. 270 Bundesgesetz vom 30. März 1911 betreffend die Ergänzung des Schweizerischen Zivilgesetzbuches (OR)

OR; Zweite Abteilung: Die einzelnen Vertragsverhältnisse; Achter Titel: Die Miete; Zweiter Abschnitt: Schutz vor missbräuchlichen Mietzinsen und andern missbräuchlichen Forderungen des Vermieters bei der Miete von Wohn- und Geschäftsräumen; E. Anfechtung des Mietzinses; I. Herabsetzungsbegehren; 1. Anfangsmietzins
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Art. 270 OR

Der Mieter kann den Anfangsmietzins innert 30 Tagen nach Übernahme der Sache bei der Schlichtungsbehörde als missbräuchlich im Sinne der Artikel 269 und 269 a anfechten und dessen Herabsetzung verlangen, wenn: a. er sich wegen einer persönlichen oder familiären Notlage oder wegen der Verhältnisse auf dem örtlichen Markt für Wohn- und Geschäftsräume zum Vertragsabschluss gezwungen sah; oder b. der Vermieter den Anfangsmietzins gegenüber dem früheren Mietzins für dieselbe Sache erheblich erhöht hat.

Im Falle von Wohnungsmangel können die Kantone für ihr Gebiet oder einen Teil davon die Verwendung des Formulars gemäss Artikel 269 d beim Abschluss eines neuen Mietvertrags obligatorisch erklären.

← Art. 269d OR Bundesgesetz vom 30. März 1911 betreffend die Ergänzung des Schweizerischen Zivilgesetzbuches (OR) Art. 270a OR →

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Gerichtsentscheide zu dieser Bestimmung (139)

MA170003.L · zh (Art. 270 OR)
Rent Increase Presumption and Burden Shift in Lease Transfer
Cited in the dispositive of the first instance decision (II. Prozessart, I. Sachverhalt und Prozessgeschichte) as the basis for the action concerning the challenge of the initial rent.
BGE 121 III 56 (Art. 270 al. 1 CO)
Initial rent contestation: late official-form notification within 30 days after lease handover extends the tenant’s contestation deadline, but does not nullify the rent fix.
Basis for the tenant's right to contest the initial rent within thirty days of taking possession, and the starting point for the extended deadline due to late notification.
BGE 121 III 56 (Art. 270 al. 2 CO)
Initial rent contestation: late official-form notification within 30 days after lease handover extends the tenant’s contestation deadline, but does not nullify the rent fix.
Foundation for the cantonal requirement of the official form and the purpose of informing the tenant, which justifies the extended contestation period.
MA170003 · zh (Art. 270 OR)
Landlord's Challenge to Rent Reduction After Steep Increase Rejected
The first-instance decision was based on the requirements for contesting the initial rent.
C/7792/2023 · ge (art. 270 al. 2 CO)
Lessee Appeal: Confirmation of Initial Rent and Arrears Calculation
Cited as the legal basis for the mandatory nature of the official rent-fixing form, the absence of which nullified the agreed rent.
C/15609/2021 · ge (art. 270 al. 1 CO)
Lease Fixed Term Nullity and Initial Rent Review
Cited in relation to the tenant's right to contest the initial rent, although the decision ultimately remands the rent contestation part for further instruction.
C/26574/2022 · ge (Art. 270 al. 1 CO)
Landlord Rent Appeal Affirmed Despite Renovation Claims
The court confirmed the original decision which fixed the rent, implicitly rejecting the appeal concerning the initial rent dispute based on the conditions set forth in this article.
C/24058/2021 · ge (art. 270 al. 1 CO)
Tenants Challenge Rent Based on Renovation Law vs. Market Rate Justification
Cited in the context of the legal framework for contesting the initial rent, which supports the court's final decision to reject the tenants' claim.
C/26791/2020 · ge (Art. 270 al. 1 CO)
Studio Rent Increase Voidability Appeal
Cited in the context of the tenant's right to contest the initial rent, forming the basis of the dispute being sent back for re-examination.
C/16910/2022 · ge (art. 270 al. 1 CO)
Landlord Appeal of Rent Setting Following New Lease Agreement
Used in the reasoning (Section 3.1.1) to determine the formal conditions allowing the tenant to contest the initial rent.
C/18138/2023 · ge (art. 270 CO)
Tenant Rent Dispute and Document Production Order
Although cited in the reasoning to justify the tenants' right to contest the initial rent, this article is implicitly the basis for the final decision to reject the appeal, as the decision upholds the order compelling the production of evidence for the rent calculation.
C/15474/2022 · ge (art. 270 al. 1 CO)
Tenant Rent Appeal Regarding Statistical Assessment and Defect Reduction
Cited in the context of the tenant's right to contest the initial rent as abusive.
C/20498/2021 · ge (Art. 270 al. 1 CO)
Rent Increase Challenge Regarding Renovated Apartment
Cited in the reasoning to justify the tenant's ability to contest the initial rent, which forms the basis for the court's final decision on the rent amount.
C/9517/2023 · ge (art. 270 al. 2 CO)
Landlords' Lease Termination Invalidated Due to Pending Rent Fixing and Tenant's Compensation Claim
Cited in the reasoning regarding the partial nullity of the lease due to form defects in rent notification.
MJ240003.L · zh (Art. 270 OR)
Modification of Existing Rent vs. New Initial Rent Form Requirements
The court implicitly relies on the rules concerning the initial rent (Anfangsmietzins) provided under this article, as the main issue revolves around its validity and the related form requirement (Art. 270 Abs. 2 OR).