The glossary to understand and take action

Land Registry and Topography Administration (ACT)

The ACT is involved in Luxembourg’s cadastral and topographical information. Data relating to parcels and plans help businesses document a property project or operating site.

Administration ou organisme professionnel · Luxembourg Fiduciaries Editorial Team · Reviewed on

Understand the scope

Its role for your business

A cadastral plan does not replace planning permission or a complete analysis of rights and easements. The scope of the document consulted must be understood before an acquisition or works.

In your file

When to contact them and what to prepare

Identify the parcel references and the type of document required. Compare cadastral information with relevant title deeds, plans and planning documents. Where a boundary or right is at stake, have the situation reviewed by the competent parties rather than drawing a conclusion from a simple online map.

A scenario to help you understand

Educational example

A company is looking for premises and uses cadastral references to identify the property, then separately checks the permitted uses.

Fictitious situation, presented to illustrate the concept.

Prepare for what comes next

Points to check

  • Identifier la parcelle
  • Vérifier la portée du document
  • Compléter par les vérifications juridiques

Connecting concepts

Terms to know as well

Continue with the concepts, contacts and procedures related to this topic.

Building permit and urban planningA building permit regulates construction, alteration or demolition work in accordance with the applicable rules. For a business, the intended use of the premises must also be compatible with urban planning requirements.Registered officeThe registered office is a company's statutory address, linked to its legal organisation.Fixed assetAn item intended for long-term use in the business, whose classification and measurement must be assessed under the applicable accounting framework.Municipal administration — business proceduresThe municipal administration is a local point of contact for certain procedures related to premises, works and the use of a business site. The relevant rules and services must be checked with the municipality concerned.Roads and Bridges AdministrationThe Roads and Bridges Administration is involved in road infrastructure within its remit. A business project affecting State roads may require a specific procedure.DepreciationDepreciation allocates the depreciable amount of an asset over its estimated useful life, in accordance with the applicable rules.

Put it into practice

Explore further with our guides

Practical guideReal estate investment: preparing the accounting and tax file

Sources and verification

References consulted on 20 September 2026. Official procedures specify the applicable conditions and exceptions.

This guide explains a general process. The applicable rules depend on your situation; it does not constitute personalised advice. Report a correction.

A definition gives you a reference point. To examine your situation, clarify your question with a professional.