What are the real estate diagnostics that a landlord must provide to the tenant?

Verified 20 February 2026 - Public Service / (Prime Minister)

The landlord has the obligation to provide real estate diagnostics to the future tenant to inform him about certain aspects of the housing he plans to rent. The real estate diagnostics to be provided vary depending on whether it is the rental of a apartment or a house.

Apartment (empty or furnished)

The landlord must give the future tenant the following real estate diagnoses:

Diagnostics are grouped into a folder called technical diagnostic record (DDT).

The lessor must append this file to the lease at the time of the signing of the lease and in case of renewal. It is transmitted by dematerialized means (e-mail for example) unless the landlord or the future tenant objects.

FYI  

The asbestos diagnosis is part of the DDT, but it does not have to be attached to the lease. The landlord must simply make it available to the tenant, on request.

Diagnoses must be made by a certified diagnoser before the rental. On the other hand, airport noise diagnosis and the state of risks (natural, mining...)) may be established directly by the lessor. It is recommended to have all the diagnostics before the publication of the announcement of rental of the housing.

House (empty or furnished)

The landlord must give the future tenant the following real estate diagnoses:

Diagnostics are grouped into a folder called technical diagnostic record (DDT).

The lessor must append this file to the lease at the time of the signing of the lease and in case of renewal. It is transmitted by dematerialized means (e-mail for example) unless the landlord or the future tenant objects.

FYI  

The asbestos diagnosis is part of the DDT, but it does not have to be attached to the lease. The landlord must simply make it available to the tenant, on request.

Diagnoses must be made by a certified diagnoser before the rental. On the other hand, airport noise diagnosis and the state of risks (natural, mining...)) may be established directly by the lessor. It is recommended to have all the diagnostics before the publication of the announcement of rental of the housing.

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