Request
01
Site plan 1:100 / 1:200
with complete land and building
![Inquiry_Documents_Lageplanan_02](https://www.betatherm.de/wp-content/uploads/2021/11/Anfrage-Dokumente_Lageplan_02.jpg)
02
Heat demand
For new construction: heat requirement certificate according to GEG complete
In the case of refurbishment: refurbishment roadmap and implementation aid with details of the package of measures that will be implemented
In case of heating system replacement: previous energy consumption of oil/gas/electricity per year
![Inquiry_Documents_Heating_Requirements](https://www.betatherm.de/wp-content/uploads/2021/11/Anfrage-Dokumente_Waermebedarf.jpg)
03
Drainage plan
1:100 / 1:200
![Inquiry_Documents_Development Plan](https://www.betatherm.de/wp-content/uploads/2021/11/Anfrage-Dokumente_Entwaesserungsplan.jpg)
04
Subsoil expertise
if available
![Inquiry_Documents_Building ground survey](https://www.betatherm.de/wp-content/uploads/2021/11/Anfrage-Dokumente_Baugrundgutachten.jpg)