The Hercogiste project has defined the following basic principles aimed at sustainability:

A sustainable environment which satisfies the needs of local residents and guests in a socially just and environmentally appropriate way without endangering the needs of future generations.

Nine sustainable environment principles that are being applied in the Hercogiste project.

A sustainable economy:  A high level of effectiveness in terms of the invested resources, local jobs, the local economy, socially responsible partners and everyday work aimed at making investments for the future.

Effective and considered use of land:  A greener, more secure, more attractive and more lively use of land, as well as flexibility in the project so as to adapt to ecologic and socioeconomic changes.

Transport:  Better mobility and less of a necessity for private transport – lower demand and proximity of services.

Homes:  A high-quality living environment with environmentally friendly and healthy construction materials and carefully considered architectural solutions.

Food:  Ecological and local foodstuffs, including food processing, small gardens and perma-culture.

Effective use of resources:  Energy efficiency, renewable energy resources, reduction and processing of waste, minimal use of water, collection of rainwater, and use of eco-technologies.

Restoration of ecosystems:  Preservation and development of valuable environmental territories.

A healthy social environment:  Culture, accessibility for differently abled people, involvement of the local public.

Public participation:  Decisions on security, planning and development of services.