Yes, 230Volts but there is absolutely no problem with UK appliances at 240Volts.
Still a predominance of 2 pin plugs in my part of the Hexagon. French Construction Regs. are not fussy about which is the negative line and which the positive. Also, their is no prohibition on power sockets adjacent to water sources (sinks, basins etc.). I presume this is because both lines are protected.
However, all cabling buried in walls etc. must be shrouded with trunking. The most popular trunking is corrugated plastic and all suppliers offer trunking with the relevant cable pre-inserted or with a "pull through wire".
For those of you who have memories of "funny" plumbing and electricity supply in France, forget it. Fittings are very sophisticated and of good quality today. A good example of this is that many truck stops, service stations, restaurants and public conveniences have one variety or other of "hands free" water supply. This includes auto detection which turns the tap on when you place your hands under the spout; foot pad operated taps; pedal operated taps; knee operated taps. These are all both more hygienic and less wasteful. Many wall switches and power outlets are "quick-fix" with "push-in terminals" and "snap-on" covers.
Unisex toilets are still prevalent and even when there is some separation of men's facilities from women's it is often a mere token and nobody hestitates to use whichever is available.
The French are far less prudish than many about bodily functions and as well as expelling waste the intake of nourishment is much more open. It is quite normal to ask for the same as an adjacent diner is eating by saying you want the same and pointing at their table and plate. Diners often lean across your table and ask your oppinion of the food before ordering themselves, I have even been given a taste from a strangers plate. Above all I enjoy the fact that the French adopt an attitude of "we are all in this together" and do not try to pretend there is nobody else in the restaurant.
Roger in France.