I agree, I lived in a quadplex before, it took up one normal sized residential lot. Great use of space citywise, but also design wise inside it was well thought out. 2 units faced the main street, 2 units faced the backyard garage/alley. From the outside it just looks like one home with 2 front doors, either side. Owners have to agree on roof repair and things like siding replacement, but other than that it was separate living.
I agree, I lived in a quadplex before, it took up one normal sized residential lot. Great use of space citywise, but also design wise inside it was well thought out. 2 units faced the main street, 2 units faced the backyard garage/alley. From the outside it just looks like one home with 2 front doors, either side. Owners have to agree on roof repair and things like siding replacement, but other than that it was separate living.