Roman
Heiz

Partner
Dr. iur. | LL.M. | Attorney at law | Certified Specialist SBA Construction and Real Estate Law

Roman Heiz

About

Roman Heiz is a partner at Wenger Vieli and Head of the Construction and Real Estate Law Team. He advises on real estate law, private and public construction law, and tenancy law. His main focus is on real estate transactions (M&A, bidding processes, property purchase contracts, sale and lease back), work contracts, full service general contractor contracts, general contractor contracts, general planning contracts, architects contracts, specialist planning contracts, business leases and supply contracts (plant construction). He represents his clients in all legal and administrative disputes in these specialist areas.

“Guiding the client to success with experience, passion and personal commitment - that is what I very much like about being a lawyer.”

Roman Heiz speaks German and English.

Client Testimonial

Roman Heiz is very entrepreneurial and highly competent in thinking and acting.

Chambers, 2024/2025

Rankings

Chambers Europe Roman Heiz
More rankings
Roman Heiz
18.11.2025

Deal: Wenger Vieli Real Estate advised the sellers on the sale of their real estate portfolio

28.10.2025

Deal: Wenger Vieli Real Estate advised Beyond Gravity on the sale-and-lease-back transaction of the former Contraves site in Zurich-Seebach

19.08.2025

Deal: Wenger Vieli acted as lead counsel to Verdane

10.12.2024

Deal: Wenger Vieli advised on the sale of the “Haus zum Nordlicht”

18.06.2024

Deal: Wenger Vieli acted as Swiss legal counsel to Inner Mongolia Mengtai Group on the acquisition of Alu Menziken Extrusion

18.03.2024

Deal: Wenger Vieli advised Basellandschaftliche Kantonalbank on obtaining a licence as fund manage-ment company for its subsidiary

Publication / Spotlights

Neuerungen im Gewährleistungsrecht

Stärkung der Mängelrechte aus Kauf- und Werkverträgen Construction and Real Estate Heiz Roman, Zanetti Nadine, Lütolf Yannic
22.10.2025
DE
Publication

Was gilt es beim Erwerb von Bestandesliegenschaften zu beachten?

Construction and Real Estate Heiz Roman, Zanetti Nadine
26.01.2021
DE
Publication

Zentrale Punkte beim Kauf von Stockwerkeigentum ab Plan

Construction and Real Estate Heiz Roman, Zanetti Nadine
07.09.2020
DE

Further publications by Roman Heiz

Das Arbeitsverhältnis im Konzern (Ausgewählte individualarbeitsrechtliche Aspekte) Abhandlungen zum schweizerischen Recht (ASR) Heft 696 Stämpfli Verlag AG Bern, 2005.

2017 Certified Specialist SBA Construction and Real Estate Law
Since 2009 Partner at Wenger Vieli Ltd.
2007 University of New South Wales, Sydney (LL.M.)
2004 University of St. Gallen (Dr. iur.)
2001-2008 Lawyer at Wenger Vieli Ltd.
2000 Admission to the Bar
1999-2001 Legal & Compliance Department at Credit Suisse First Boston
1997-1999 Law Clerk at the District Court of Meilen
1997 University of St. Gallen (lic. iur.)
  • International Bar Association (IBA)
  • Swiss Bar Association (SAV)
  • Zurich Bar Association (ZAV)
  • SIA – Swiss Society of Engineers and Architects
    Specialists SBA Real Estate and Construction Law
Chambers and PartnersThe Legal 500

Working with Roman Heiz has been an exceptional experience. What sets him apart is not just his deep legal expertise, but also his incredibly human and calming demeanor, which has been a tremendous help to me. In high-pressure situations, his ability to provide clear, strategic advice while maintaining a reassuring presence has made all the difference.

Client Testimonial, The Legal 500, 2025/2026

I truly value how Roman Heiz combines a meticulous understanding of legal complexities with an approachable and calming style. His responsiveness and attention to detail are always impressive, and his solutions are both efficient and practical.

Client Testimonial, The Legal 500, 2025/2026

Roman Heiz is extremely experienced and provides pragmatic and very professional advice in all aspects of a real estate transaction. Very responsive and great to work with.

Client Testimonial, The Legal 500, 2025/2026

Roman Heiz: We felt that he took our case in all seriousness, anticipating what can happen and describing options from the more straightforward to a full range of options. By sharing his previous experience, he made the eventual solutions more real and relatable. He has also kept ahead of the case, anticipating potential developments and solutions.

Client Testimonial, The Legal 500, 2025/2026

Roman Heiz impresses with his extensive expertise in construction and real estate law. His ability to resolve complex issues efficiently, combined with his pragmatic advice, leads to excellent solutions.

Client Testimonial, Chambers Europe, 2025/2026

Roman Heiz is highly skilled and has very strong industry knowledge.

Client Testimonial, Chambers Europe, 2025/2026

I value Roman Heiz's entrepreneurial mindset and personal dedication.

Client Testimonial, Chambers Europe, 2025/2026

Roman Heiz has a huge experience in real estate transactions and advices clients in a pragmatic and very diligent manner. Every client can be happy to have him at his side in any transaction.

Client Testimonial, The Legal 500, 2024/2025