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Tenant rights regarding moisture and mold

The Tenancy Act is based on the rental home complying with the agreement and having a proper standard. Moisture intrusion, leaks, rot, or extensive mold may constitute a defect if the condition was not caused by the tenant. As a general rule, the landlord is responsible for necessary maintenance and for handling building-related causes.

You should still not determine the cause with certainty yourself. Condensation, inadequate ventilation, pipe leaks, and defects in the roof or foundation require different measures. Ask the landlord in writing to investigate the matter, and provide reasonable access for inspection and repairs by agreement.

• Ask for investigation and repair of moisture, leaks, and mold.
• Document visible signs, odors, dates, and any damage to belongings.
• Agree on a time for inspection and provide necessary access to the home.
• Avoid measures that conceal the problem or worsen the building damage.

Health, indoor air quality, and temporary measures

Mold and moisture can cause odors, irritation, and discomfort for some people, but the health risk depends on the extent, exposure, and individual circumstances. Contact a doctor if symptoms persist. Seek medical help for acute or serious symptoms.

Keep rooms ventilated without making the damage worse, dry up water when it is safe, and move vulnerable belongings away from damp areas. Do not remove materials or use strong chemicals yourself if this could spread spores or conceal the cause. Request a professional assessment when the extent is unclear.

How to document the problem

Good documentation makes it easier to show what happened and when you gave notice. Take photos and video of stains, condensation, leaks, and damaged surfaces, and preserve the originals. Keep a brief log with dates, rooms, odors, visible changes, and contact with the landlord. Keep the tenancy agreement, messages, receipts, and reports.

• Take dated photos and store them in a secure place.
• Keep a log of symptoms, incidents, measurements, and the landlord's responses.
• Send a written message describing the problem and requesting action.
• Keep receipts for necessary expenses and any damage to belongings.

Send the notice in a way that can be documented, such as email or the landlord's portal. Set a reasonable deadline for a response, but adapt it to how serious and urgent the condition is. If there is a risk of greater damage, give notice immediately.

If the landlord does not repair

If the landlord does not follow up, send another written communication with the earlier notice, photographs, and a clear description of what you are requesting. Depending on the defect, possible claims may include repair, a rent reduction, or compensation for documented financial loss. Terminating the tenancy has strict conditions and should be considered with specific legal advice.

Do not withhold or reduce rent on your own without carefully checking the rules. An incorrect deduction may be treated as non-payment. If the matter is not resolved, you may consider mediation or a complaint to the Norwegian Rent Disputes Tribunal where the tribunal handles the matter. Other disputes may belong before the Conciliation Board or the courts.^[1]

In cases of serious danger, failure to evacuate, or other emergencies, contact the relevant emergency services. Tenants should not be subjected to retaliation because they report defects properly or use lawful complaint procedures.

Frequently asked questions

Can I require the landlord to remove mold?

You can require the landlord to investigate and correct a defect for which the landlord is responsible when the problem was not caused by your use of the home.

Can I stop paying rent because of moisture?

You should not stop payment without specific guidance because an incorrect withholding may be treated as non-payment.

What should I do if the indoor environment makes me ill?

Document the condition, notify the landlord, and contact a doctor if you have symptoms or concerns about your health.

How to proceed

1. Document moisture, mold, odors, damage, and dates with photographs and a written log.
2. Send the landlord written notice with a description, documentation, and a reasonable deadline.
3. Provide agreed access for investigation and repairs, and follow up in writing.
4. Ask for advice and consider the HTU, the Conciliation Board, or the courts if the dispute is not resolved.

Help and resources

• Norwegian Rent Disputes Tribunal: information about complaints and mediation
• Lovdata: the Tenancy Act and current rules
• The courts: information about civil disputes

1. [1] Norwegian Rent Disputes Tribunal