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ABEX, a non-profit association recognized as a professional union, brings together technical and legal experts working throughout Belgium.

Purchases on our e-shop are currently deactivated due to technical maintenance until late afternoon on Tuesday 19 August 2025. Thank you for your understanding.

Presentation

For over 90 years, our mission has been to champion the quality and integrity of expert witnesses by guaranteeing professional excellence. Recognised as a benchmark in the field, ABEX promotes good practice, ethics and rigour in order to serve justice and civil society.
ABEX thus provides expert witnesses, judges and professionals with a set of tools and references that are essential for the proper performance and advancement of expertise assignments in Belgium.

This website provides you with:

And their specialities, accessible via a search module.
on the work of expert witnesses, their professional code of conduct and the legal frameworks that govern the profession, as well as the ABEX values and missions.
and its Executive Committee.
a key benchmark in the construction industry and property valuation sector.
including the unit price slip for building materials as well as registration for various events
including seminars, study days and professional meetings (Expert Lunches, Expert-Magistrate Dinners, etc.).

Our training courses

Find out about our latest training courses and events
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The ABEX index 

Index history

Twice a year, ABEX publishes the ABEX index, which tracks changes in the cost of building private homes and dwellings (in 1914, the ABEX index = 1).

The list of indices is available in the ABEX Index section.

Latest news

The latest ABEX news at a glance

ABEX index at 01/05/2025

The members of the Index Committee have collated their statements of observed prices for the construction of new private homes across the country,...

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Annual General Meeting

Annual General Meeting The Annual General Meeting was held on 4 April 2025, followed by a convivial drink in the garden.

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Arbovisite - le 22/05/25

What role do trees play in climate change? This question will be at the heart of the guided tour led by Murielle Eyletters, an expert in...

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The ABEX Academy regularly organises training courses and events for expert witnesses (open to ABEX members and non-members). You can consult the calendar and sign up for training courses and events organised by the ABEX Academy.

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The unit price schedule shows the average prices of the various items and materials used for the construction of a building. It is published twice a year.

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Contact ABEX if you have any questions via our online form or by telephone. Our secretariat is available to answer your queries on Tuesdays and Thursdays during the day and on Wednesday mornings.