The precise approach for tiling with Mosaic especially in your property is first of all to take a look at the finish of your current partitions. If you have tradesmen doing work for you, Plasterers as an example, ensure the area you need overlaying with Mosaic is perfectly flat, as these discrepancies will show up dramatically as soon as the wall is covered. Floors can be leveled with Latex if uneven. Mosaic work is time consuming to fix, but can look great when installed correctly. 

Hex Mosaic Tiling