My kitchen is sited between a conservatory on one side and a dining room on the other. It gets no natural light directly and relies on light from the conservatory and dining room windows. In winter the kitchen is dark. A dark green slate covers the floor of the kitchen, dining room, conservatory and utility room. This was really practical when the children were small but I am now at a stage where I want to modernise the area. I want to replace the slate in the kitchen, dining room and utility with brighter tiles but leave the conservatory as it is. Because the area is so large - about 70 square metres - a mistake would be very costly. I would love somebody elses opinion.