Can I add my ongoing interior design project with friends to my profile or SOP for admission in Germany for a Master's?

Yes, you can include your ongoing interior design project with friends in your profile and Statement of Purpose (SOP) when applying for a Master's in Architecture in Germany.

Highlight the project in your CV by describing your role, the skills you are developing, and noting that it is ongoing. In your SOP, explain how this experience is relevant to your goals and what you are learning from it.

You can also add a project portfolio with sketches or photos, and request a reference letter from a collaborator if possible. Be sure to clearly state the project is still in progress and avoid overstating its completion.