The basic raised was the clear differentiation of the two areas of the appart, the intimate (bedrooms) and the living area.

About the needs of the client, try to stick as far.

All building walls are by drywall from floor to ceiling, except the dividing kitchen-passage which having 1.70, thereby allowing the space to have a good volume.

The proposed solutions I think show up well on the plane.

The changes remain in their original locations bathroom fixtures except the tub that is removed (space once occupied by the washing machine)
In the kitchen, the main counter with the pools is where it is, avoiding further work with pipes and drains.
No presicion in the data, but I think the second counter with the gas stove can be adapted to the new design and even tight, a breakfast table is achieved.

A third small bedroom was obtained. The sliding door in the kitchen is used for this and only opens a small window (0.40 x 1.00) to provide light and ventilation that is sufficiently small as not requiring any major work.

Do not work in intensity on the housing equipment, because it goes hand in hand with the budget.
There are main and first amendments to be made, now the function does not make the quality of material to use and there are very significant differences in the cost as use either option.
I think this is clear, if the proposed party fully satisfy the customer, when choosing an mosaic can opt for ceramic tiles, porcelain stoneware, terracotta,, or natural stone, with a result is more subjective than objective, and then the same with any other.
I remain committed, under specific guidelines, to propose my best solution in each of the required items.