ARCADIS Moves Headquarters to Amsterdam

ARNHEM, The Netherlands, March 4, 2010 - ARCADIS (NYSE EURONEXT: ARCAD), the international consultancy, design,
engineering and management services company, will move its international
headquarters to Amsterdam. An agreement was reached with Philips
Pensioenfonds for the lease of two floors in the Symphony office tower at the
Zuidas in Amsterdam, a high quality office location, close to Schiphol
Airport. The new offices offer room for about 40 corporate staff, including
the Executive Board. The office move is planned for September 2010.

The management of ARCADIS Nederland, currently located in Amersfoort,
plans to move to Arnhem and together with its support staff will occupy the
vacated space in the Rijntoren, near the central station in Arnhem. This
offers the opportunity to consolidate a number of smaller offices with larger
offices in the Netherlands, allowing for an efficiency improvement. The
staffing of the Amersfoort office will be kept at current levels.

Harrie Noy, chairman of the Executive Board, commented: "The office move
of our international headquarters reflects the change of ARCADIS into an
international professional services provider, globally active with 15,000
employees of which 12,000 work outside of the Netherlands. Our new
headquarters, within walking distance from public transportation and only a
few minutes from Schiphol Airport, will be an international meeting center
for ARCADIS. This fits well with our strategy which is focused at creating
synergies in the interest of our clients. The return of the management of
ARCADIS Nederland to Arnhem ensures that our historic ties with that city are
maintained."

About ARCADIS:

ARCADIS is an international company providing consultancy, design,
engineering and management services in infrastructure, environment and
buildings. We aim to enhance mobility, sustainability and quality of life by
creating balance in the built and natural environment. ARCADIS develops,
designs, implements, maintains and operates projects for companies and
governments. With 15,000 employees and EUR 1.8 billion in revenues, the
company has an extensive international network that is supported by strong
local market positions.

PRN NLD

For more information please contact: Joost Slooten of ARCADIS at +31-26-3778604 or outside office hours at +31-6-27061880, or e-mail at joost.slooten at arcadis.com.