Trust layer

Sources & Assumptions

The app separates source-backed regulatory context from editable demo assumptions. This page lists the local source registry used by the current beta.

Truth-first source policy

Official sources anchor legal and policy claims. Industry guidance can explain practical readiness, but it is not presented as law. Demo assumptions are labelled and must be replaced with verified project data before decisions.

Review source authority levels

Regulatory

Directive (EU) 2024/1275 on the energy performance of buildings

Authority level
Official source
Publisher
EUR-Lex / European Union
Scope
European Union
Last reviewed
2026-05-19

Can be used as a legal or policy anchor, while national implementation still needs review.

Primary legal source for the recast EPBD framework used as the regulatory anchor.

Energy Performance of Buildings Directive

Authority level
Official source
Publisher
European Commission
Scope
European Union
Last reviewed
2026-05-19

Can be used as a legal or policy anchor, while national implementation still needs review.

Commission overview for EPBD policy context and implementation framing.

Gebäudeenergiegesetz (GEG) - building automation requirements

Authority level
Official source
Publisher
Bundesministerium der Justiz / Gesetze im Internet
Scope
Germany
Last reviewed
2026-05-20

Can be used as a legal or policy anchor, while national implementation still needs review.

Official German legal text entry point for national building energy requirements, including building automation provisions for non-residential buildings.

Décret BACS - bâtiments tertiaires

Authority level
Official source
Publisher
Ministère de la Transition écologique
Scope
France
Last reviewed
2026-05-20

Can be used as a legal or policy anchor, while national implementation still needs review.

Official French government guidance page for Décret BACS scope, thresholds, timing, and affected tertiary buildings.

EPBD III requirements for technical building systems

Authority level
Official source
Publisher
Rijksdienst voor Ondernemend Nederland (RVO)
Scope
Netherlands
Last reviewed
2026-05-20

Can be used as a legal or policy anchor, while national implementation still needs review.

Official Dutch government agency page for EPBD III building-system requirements and national implementation context.

Decreto legislativo 10 giugno 2020, n. 48

Authority level
Official source
Publisher
Normattiva / Istituto Poligrafico e Zecca dello Stato
Scope
Italy
Last reviewed
2026-05-20

Can be used as a legal or policy anchor, while national implementation still needs review.

Official Italian legal text implementing EPBD-related building energy performance requirements. Review current consolidated text for BACS-specific national obligations.

Reglamento de Instalaciones Térmicas en los Edificios (RITE)

Authority level
Official source
Publisher
Boletín Oficial del Estado (BOE)
Scope
Spain
Last reviewed
2026-05-20

Can be used as a legal or policy anchor, while national implementation still needs review.

Official consolidated Spanish RITE legal text for thermal building systems. Use with national EPBD transposition review for BACS-specific interpretation.

Checklist

eu.bac updates its BACS compliance verification checklist to match the reviewed 2024 EPBD

Authority level
Industry guidance
Publisher
eu.bac
Scope
European non-residential buildings
Last reviewed
2026-05-19

Credible domain guidance, not official law or certification.

Used for capability checklist framing such as monitoring, communication, and IEQ readiness.

2024 EPBD BACS Compliance Verification Checklist Package

Authority level
Industry guidance
Publisher
eu.bac
Scope
Non-residential buildings
Last reviewed
2026-05-19

Credible domain guidance, not official law or certification.

Reference for evidence-oriented BACS review categories and practical verification inputs.

ROI & Cost

Building Automation and Control Systems impact on EPC classes in Europe

Authority level
EU-hosted portal
Publisher
BUILD UP / European Commission portal
Scope
European buildings
Last reviewed
2026-05-19

Credible EU-hosted material for context and economics, not binding legislation.

Used as a credible reference for BACS retrofit economics and payback framing.

eu.bac Reference Case Booklet: Building Automation and Control System Retrofit

Authority level
EU-hosted portal
Publisher
BUILD UP / eu.bac
Scope
European building retrofit cases
Last reviewed
2026-05-19

Credible EU-hosted material for context and economics, not binding legislation.

Used for ROI narrative and retrofit value examples. App defaults remain demo assumptions.

Funding

Demo funding seed data

Authority level
Demo assumption
Publisher
control.haus
Scope
Demo only
Last reviewed
2026-05-19

Local beta assumption that must be replaced or verified before production use.

Funding programs in the app are local seed data and must be source-reviewed before production use.

Demo Assumptions

Demo ROI defaults

Authority level
Demo assumption
Publisher
control.haus
Scope
Demo only
Last reviewed
2026-05-19

Local beta assumption that must be replaced or verified before production use.

Default €/m² cost, grant offset, energy savings, discount rate, and CO₂ factor are editable demo assumptions.