DELTA combines property valuation, technology, and ESG into an integrated decision-making and risk package.
04. March 2026
Value. Risk. Sustainability.
Real estate decisions have become more complex.
In addition to market and income value, technical substance, investment requirements, and ESG requirements are increasingly coming into focus. Owners, investors, and financiers are faced with the challenge of reconciling economic indicators with structural reality and regulatory sustainability.
This is exactly where DELTA comes in, with locations in four countries (AT, SK, CZ, UA) and over 400 employees in the fields of architecture, construction management, and consulting.
We combine economic property valuation, technical due diligence, and ESG/sustainability expertise to create a consistent basis for decision-making—structured, transparent, and suitable for management.
Holistic assessment instead of isolated individual analyses
The value of a property is not determined in isolation on the market.
It depends significantly on:
- Technical substance
- Necessary investment requirements
- Quality of use and rentability
- Regulatory requirements and ESG risks
DELTA considers these factors in an integrated manner – economically sound, technically reliable, and strategically classified.
Where we provide concrete support
- Construction condition and progress expert reports
- Parification / utility value expert reports
- Depreciation and useful life expert reports
- Real estate consulting and property valuations (single asset & portfolio)
- Rent and lease assessments
- Assessment of rights and encumbrances
In addition, we conduct international portfolio analyses and enable scalable valuation and risk assessments across national borders.
Your added value: valuation without interface losses
Because DELTA combines valuation, construction and investment logic, and ESG requirements in one team, there are no information gaps between economic efficiency, technology, and sustainability.
The result is a clearly structured DELTA Decision Pack, which includes:
- Market and income value
- Substance analysis & investment strategy
- International portfolio analyses: scalability
- ESG risks & future scenarios
- Clear recommendations for decisions and measures (executive summary)
Technical analyses are not an end in themselves, but rather support the overall economic assessment and strategic classification.
Decision-making basis with substance
Our reports are more than just figures.
They provide:
- A concise executive summary for management and decision-makers
- Transparent derivation of all assumptions
- Economically prioritized recommendations for action
- Scenario considerations for strategic hedging
This is how we provide guidance – for purchasing, financing, portfolio optimization, or portfolio development.
Personal consultation
We would be happy to show you in a brief personal consultation how a typical DELTA Decision Pack is structured and what documents we need for efficient processing.
Contact us:
Email: consulting@delta.at
Phone: +43 664 80756 643

Rainer Waltner, Senior Consultant, DELTA