not sure you should bd driven by trends,, basins on top allow lower bench height which appears less bulky in small bathroom and puts sink on same level as toiletries on the counter, less bending

Hi Fiwi When we look at basins, regardless of the overall dimensions or type of mount we look at the depth of the bowl internally and its shape. For practicality we always choose a deep bowl with a curved bottom of some sort to allow proper drainage. Its a great look to have flat square bottoms with corners and shallow angles as you have now, but the reality is as you said that they need help to be washed out. The deep and wide bowl is better for shaving too as it keeps the rinsing within the bowl. There are plenty of great looking basins that have the above. We often use an undermount or inset basin such as these give practicality without bulk eg as below But there are also plenty of good surface mounted also. Cheers

if each hand basin is 500mm and the counter is 1800 there'll be 800mm left to be divided into three portions...perhaps 250 on each end and 300 in the middle will give a symmetrical feel anything else will be skimpy but also consider the depth (front to back space) and given the option i would opt for a deeper counter for extra space along the back...50 to 100mm extra depth could be very useful

<?xml version="1.0" encoding="UTF-8"?><md>Don’t put basin against a wall. It needs some elbow room. if doing a 750 vanity and it has floor space to one side then offset to that side can look nice and balance the vanity, but need a floor plan Bigger than that I would prefer centre as two people can stand either side, his and her (her and her, he and he etc ) sides for counter space