Office space for sale with 12% yield

The ground floor is for sale, where all the rooms are rented.

Layout:
Total area - 260m2. 15 rooms, fully equipped kitchen, 3 WC (one with shower)
High ceilings (4m)
Has its own private terrace
3 entrances - one from the front, two from the private garden
Excellent sound and thermal insulation
Intercom
Parking - 2 spaces in the yard
Investment opportunity - can convert the property into apartments
Fantastic location - Close to shops, restaurants, schools, parks