Required Disclosures for Landlords in North Rhine-Westphalia

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Mandatory landlord disclosures in NRW, Germany: energy certificate, operating costs, prior rent, CO₂ costs, and modernization notices.

Melvin Prince
5 min. læsning
Verificeret Apr 2026Tyskland flag
disclosures-nrwEnergimærkeDriftsomkostningerco2-costsnorth-rhine-westphalia

Juridisk ansvarsfraskrivelse

Dette indhold er udelukkende til generel information og uddannelsesmæssige formål. Det udgør ikke juridisk rådgivning og bør ikke betragtes som sådan. Love ændres ofte – verificer altid gældende regler og konsulter en autoriseret advokat i din jurisdiktion for rådgivning specifikt til din situation. Landager er en ejendomsadministrationsplatform, ikke et advokatfirma.Oplysninger sidst verificeret: April 2026.

Landlords in North Rhine-Westphalia are required by federal and EU law to provide tenants with a range of information and disclosures. Violations can result in damage claims, fines, or the invalidity of certain contract clauses.

Juridisk ansvarsfraskrivelseDenne guide giver generel juridisk information. Lejelove kan ændre sig. Konsulter altid en autoriseret notar eller advokat i denne region.
Security Deposit
3 Months’ Cold Rent
Notice Period
3 Months (Tenant)
Rent Control
Varies by City

Overview of Disclosure Requirements

DisclosureTimingLegal Basis
Energy Performance CertificateAt viewing, by lease signing at latest§ 87 GEG
Prior rent (Vormiete)Upon tenant request§ 556g(3) BGB
Operating cost statementAnnually, within 12 months of billing period§ 556(3) BGB
Known defectsBefore lease signing§ 536d BGB
CO₂ costsAnnually, with operating cost statementCO2KostAufG
Modernization noticeAt least 3 months before start§ 555c BGB
Rent increase letterBefore each rent increase§§ 558a, 559b BGB

Energy Performance Certificate The energy certificate is mandatory under § 87 of the Building Energy Act (GEG)

Landlords must:

  • Actively show the certificate during property viewings (not merely make it available)
  • Hand over a copy to the tenant at lease signing at the latest
  • Include energy data (energy demand value, energy efficiency class) in property listings

Fine: Violations regarding the energy certificate can result in fines up to €15,000.

Energy certificates are valid for 10 years and must be renewed upon expiration.

Prior Rent Disclosure (Rent Cap Areas) In the 57 municipalities in NRW where the rent cap (Mietpreisbremse) applies, landlords must provide information about the prior rent upon written request from the tenant (§ 556g(3) BGB). The federal Mietpreisbremse has been extended until December 31, 2029. Violations related to the rent cap can result in fines up to €50,000.

This is relevant when the landlord claims an exemption from the rent cap. Possible exemption grounds:

  • New construction (first occupancy after October 1, 2014)
  • detailed modernization (first occupancy after renovation)
  • Prior rent already exceeded the rent cap limit

The landlord must proactively disclose the exemption basis in text form before signing the lease.

Operating Cost Statement

If operating cost prepayments are agreed, the landlord must issue an annual statement:

  • Billing period: Typically 1 year (calendar or fiscal year)
  • Deadline: 12 months after the end of the billing period (§ 556(3) BGB)
  • Missed deadline: Landlord loses the right to demand additional payment; tenant retains refund rights

The statement must:

  • Itemize all billed positions individually
  • State the allocation method and total costs
  • Credit the tenant's prepayments

CO₂ Cost Allocation (Since 2023) Since January 1, 2023, the CO₂ Cost Allocation Act (CO2KostAufG) requires CO₂ costs from heating fuel to be shared between landlord and tenant using a tiered model based on the building's energy efficiency:

CO₂ Emissions (kg CO₂/m²/year)Tenant ShareLandlord Share
Below 12100%0%
12–1790%10%
17–2280%20%
22–2770%30%
27–3260%40%
32–3750%50%
37–4245%55%
42–4740%60%
47–5235%65%
Above 525%95%

The landlord must break down CO₂ costs annually alongside the operating cost statement and document the allocation.

Modernization Notices Before planned modernization measures, the landlord must inform the tenant:

  • At least 3 months before the start, in writing (§ 555c BGB)
  • Include the type, scope, start date, expected duration, and anticipated rent increase
  • Inform the tenant of their special termination right (until the end of the second month after notice, § 555e BGB)

Known Defects The landlord must disclose any known material defects of the rental property before or at lease signing

Concealed defects may:

  • Entitle the tenant to rent reduction
  • Give rise to damage claims
  • Void the landlord's limitation of liability

Typical defects requiring disclosure: mold, known construction flaws, noise sources, persistent odor issues from the surroundings.

Best Practices for Landlords

  • Create a handover protocol with photos, signed by both parties
  • Keep the energy certificate current and bring it to all viewings
  • Issue operating cost statements on time and in full
  • Factor the CO₂ allocation into your operating cost calculations from the start
  • Inform tenants in writing about rent cap exemptions before the lease is signed

Landager helps landlords manage disclosure documents, track deadlines, and handle operating cost statements.

Back to North Rhine-Westphalia Landlord-Tenant Laws Overview.

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