About TRES

Your technical partner for real estate

TRES was founded by Julien Nausner and Andreas Quaas—two experienced engineers and real estate economists who previously worked for renowned consulting firms and institutional investors.

“Quality takes time—and we take that time for every project.”
Zwei lächelnde Männer (Julien Nausner und Andreas Quaas
), einer sitzt, der andere steht mit Arm auf Schulter des Sitzenden.
Our motivation

Technology is complex. We make it understandable.

We are a specialized real estate service provider based in Munich. With a team of experienced engineers, project managers, and real estate experts, we support you through all phases of the real estate cycle. Our services begin with transaction advisory and, through seamless handover, ensure that acquired knowledge is preserved for the operational phase—where we actively assist in optimizing and increasing the value of the property.

Economic highs and lows have defined the real estate industry in recent years. With targeted, individual property strategies, owners have always stayed one step ahead. We focus on individuality—tailoring our services to the client and the property. Always one step ahead.

10+
Years of experience
150+
Transactions supported
All
Asset classes
International network

TRES – deployed foryou across Europe

With our network of engineers, architects, and specialists, we support transactions and projects in Germany and many other European countries.

Areas of expertise

Germany (Focus)
Austria & Switzerland
Netherlands
Spain
Ireland
Czech Republic
The Team

The faces behind TRES

Porträt eines lächelnden Mannes (Julien Nausner) mit braunen Haaren und Bart in einem dunklen Anzug vor grauem Hintergrund.

Julien Nausner

Managing Partner, Managing Director
Energy and Building Technology Engineer
Real Estate Economist IR|EBS
DGNB ESG Manager
DENA Energy Consultant

TRES Technical Real Estate Services GmbH

2025 – Present

Kroll REAG

2022 – 2025
Associate Director

Technical Due Diligence, Construction Monitoring, ESG and Asset Management Services

Real I.S. AG

2019 – 2021
Director of Technical Asset Management

Management of 30 properties in Germany and the Netherlands (AUM ~€2 billion). Managing and overseeing acquisitions and disposals for the owner.

Kroll REAG (formerly Duff & Phelps)

2016 – 2018
Consultant

Technical Due Diligence, Construction Controlling

Porträt eines lächelnden Mannes (Andreas Quaas) mit dunklem Jackett und weißem Hemd vor grauem Hintergrund.

Andreas Quaas

Managing Partner, Managing Director
Civil Engineer (M.Eng.)
Real Estate Economist (IRE|BS)
DGNB ESG Manager
TÜV-Certified Fire Protection Planner
Expert Planner for Protection, Repair,
and Strengthening of Reinforced Concrete

TRES Technical Real Estate Services GmbH

2025 – Present

Kroll REAG

2018 – 2025
Associate Director

Technical due diligence, construction monitoring, ESG and asset management services

SPIE

2016 – 2018
Position to follow

Technical due diligence, construction monitoring, client representation, planning and tendering of repair measures

Dr. Linse Ingenieure

2011 – 2015
Position to follow

Court-appointed expert reports, structural surveys, planning and tendering of repair measures, client representation

Trusted by our clients

Selected references

Logo Columbia Threadneedle Investments
Logo Bayern LB
Logo Invesco
Logo Manova Partners
Logo Catella
Logo Montano Real Estate
Logo Vestfam GmbH
Logo Values Real Estate
Our network

Deployed for you across Europe

With our network of architects, engineers, and other specialists, we can support you on projects of any scale – even on short notice and nationwide.

Architects
Civil Engineers
MEP Engineers
Fire Protection Experts
Expert Witnesses
Appraisers
ESG Consultants