FUNKE immobilien

Stuttgart – November 03, 2026 -- Buying a flat to rent out is not automatically a sound investment, says Mireille Funke, owner of FUNKE immobilien in Stuttgart. In her view, purchase price, financing, rental potential, location, condition and the buyer's own circumstances decide whether the numbers work.

Run the numbers before the first viewing

Funke advises buyers to look at economic substance before bathrooms or flooring. That means asking what rent is actually achieved or realistically achievable, what the purchase price, financing costs and running expenses add up to, and which investments may fall due in the coming years. The Deutsche Bundesbank reports a noticeably different interest environment for residential construction loans than in the low-rate years, so calculations must be tighter.