About us
Real Estate Heritage grew out of Schlossseiten.at – from a shared wish to preserve historic and listed buildings for future generations and to make them usable today.
Our story
We believe in substance, in identity – and in the future of existing buildings.
Our work focuses on the sustainable use, design and management of existing real estate. Built structures are among humanity’s most enduring creations – they call for people who think a building’s past, present and future together.
Today we combine architectural expertise and cultural commitment with data-driven methods and our own AI tools. For owners and investors who want not just to calculate their property, but to understand it.
Team
Two biographies, one shared conviction: historic buildings deserve a future worthy of their history.
Dipl.-Ing., MSc, MRICS · Founder
More than 20 years of institutional real estate experience in Austria, Germany and Central and Eastern Europe – including at Bank Austria, CBRE Global Investors in Prague and Generali Real Estate Austria, and for a family office.
Studied architecture at TU Wien, MSc from the University for Continuing Education Krems, member of the RICS. Lecturer at TU Wien. Develops Real Estate Heritage’s AI tools.
Founder
Entrepreneur focusing on historic architecture and media. Founder and publisher of Schlossseiten – one of the first online platforms and magazines for Austrian castles and palaces.
Brings the network to owners of historic properties and experience in communicating and marketing exceptional properties.
Partners
Online platform and magazine about Austrian castles and palaces – the origin of Real Estate Heritage.
schlossseiten.atPartner for a contemporary design language in the tradition of Austrian Biedermeier.
dritterbiedermeier.atPress
Die Presse · Luxury Estate · 04/2026
Sich leises leisten (“Affording the quiet”).
Interview with Paul Lensing on quiet luxury in architecture and interiors and the concept of a “third Biedermeier” (German).
Die Presse · Luxury Estate · 04/2025
Leben zwischen Reben (“Living among the vines”).
Feature on a former winegrower’s estate on the Wagram that Paul Lensing carefully revitalised together with his sister Lisa Gasteiger-Rabenstein (German).
Kurier · June 2025
Castles in Lower Austria are looking for new owners (German).