Renting commercial property (part of own building)

I am a sole proprietor, so i don't know if i can include a building as an investment?

I may indeed be able to include part of the interest. I will consult an expert on this.

But does that mean that everyone who uses part of their home for their business, for example, does not contribute the costs from that space?

Yes, yes! Be sure to contribute all the costs you incur from that space!

Decoration, furniture, fittings, lamps, paint, cupboards....

I was only talking about the actual cost of the building itself, i.e. the purchases, because you said you were going to buy it privately. I thought you wanted to include x amount of the purchase cost of that building in your accounts and that that was what it was about.

But if you're talking about all the additional costs, apart from the actual purchases, I would definitely include those!

Yes, I do include the costs of furnishings, furniture, etc. in my expenses now that I am renting, and I will continue to do so afterwards.

But will the cost of rent that I currently have be completely eliminated if I have my own home with commercial premises?