Dr Nikolaus Weselik > CMS Reich-Rohrwig Hainz Rechtsanwälte GmbH > Vienna, Austria > Lawyer Profile

CMS Reich-Rohrwig Hainz Rechtsanwälte GmbH
1010 WIEN

Work Department

Real Estate & Construction; Dispute Resolution; Hotels & Leisure


Nikolaus Weselik is partner at CMS Vienna and head of the Construction and Real Estate Law Practice Group. He is an attorney-at-law for national and international construction contract law and real estate law, for construction processes and other forms of dispute resolution, for legal questions of project development, as well as for the purchase and sale of real estate projects or individual properties.


Nikolaus Weselik has more than 20 years of practical legal experience and advises national and international clients in the fields of construction, real estate, project development and hotels, both in non-contentious matters and in arbitration and other litigation proceedings.

Nikolaus Weselik is recommended by international legal directories as a leader in construction and real estate law.


English, German


Austrian Bar Association
Board member of the Austrian Society for Construction Law


1995 – Doctor of Laws, University of Vienna
1990 – Master of Laws, University of Vienna


Nikolaus Weselik gives lectures on real estate law as part of the Master’s programme in residential and real estate law at the University of Vienna and gives guest lectures on construction contract law in the course “Practical Contract Drafting in Corporate and Corporate Law” also at the University of Vienna. He has authored of several books on national and international construction contract law.

Lawyer Rankings

Austria > Real estate

CMS Reich-Rohrwig Hainz Rechtsanwälte GmbH demonstrates particular strength dealing with matters at the intersection between real estate and construction, which is also where team head Nikolaus Weselik‘s expertise lies. Typically, this leads to instructions on the sale and acquisition of real estate and plots of land marked for construction on the one hand, and lease and tenancy-related matters on the other. Much of its recent work in the latter space pertains to Covid-19-related lease agreements and tenancy disputes. Instructions span various asset classes with particular expertise in the hotel sector. The firm is a Ökoprofit company certified by OekoBusiness Vienna which is testament to its commitment to improve its environmental balance sheet.

Austria > Construction

(Hall of Fame)

Nikolaus WeselikCMS Reich-Rohrwig Hainz Rechtsanwälte GmbH

CMS Reich-Rohrwig Hainz Rechtsanwälte GmbH handles the full remit of construction law, including associated real estate and public law matters, and is equally well placed to guide clients through sector-specific disputes. Its contentious work covers litigation and arbitration and is underpinned by team head Nikolaus Weselik‘s additional experience as an arbitrator. In the non-contentious space, the team routinely advises developers, investors, employers and construction companies on construction contracts and various project development-related issues as well as subsequent real estate transactions. While hotel sector work constitutes an area of particular expertise, translating into regular instructions from hotel operators and owners, the team has also been active in various other sectors including residential, logistics, retail, telecoms, infrastructure and energy. Thomas Hamerl is the key contact for infrastructure projects and PPPs.

Austria > Projects and energy

Clients from the public sector, private investors, development companies, banks and financial institutions regularly instruct CMS Reich-Rohrwig Hainz Rechtsanwälte GmbH on questions of energy, climate change, infrastructure, and projects. The firm’s infrastructure and projects group and the energy and climate change group collaborate to jointly work on matters in this area. The practice advises on the full range of project development with a particular focus on social infrastructure, renewable energy as well as life sciences and healthcare, among others. Property and construction law specialist Nikolaus Weselik, energy and climate change expert Thomas Hamerl, and public procurement head Bernt Elsner are the key contacts.