AFAIK Plumbing tends to run beneath the floors in either construction model. Electrical in brick buildings is a pain as it runs in conduit behind the plaster bu

AFAIK Plumbing tends to run beneath the floors in either construction model. Electrical in brick buildings is a pain as it runs in conduit behind the plaster but this doesn't compromise the viability of your structure and has a fairly long service life. HVAC also can generally also be run under floors (and outside of the USA forced air systems are pretty unusual so you're only dealing with pipes).