There's generally little fuss – legal or otherwise – involved in converting a boring flat roof into a green oasis. You may want to ask an expert's opinion on maximum load first, however. Photo: Florian Schuh/dpa
If you're looking for space for more greenery on your property, look up: Many homes and apartment blocks have hidden surfaces waiting to be transformed with perennials and shrubs.
Flat roofs, such as those on garages or carports, can often be quickly turned into a green oasis that's both beautiful to look at and good for nature.
