Well, we are pretty excited after searching high and low for a place for 8 adults and three kids (oops...the rellos are coming to town!)...
we found a farm-hotel - farmstay..
It was significantly cheaper than ski resort places, and not a chalet...but just on the edge of a pretty cute little town.
Schlaf im Stroh (sleep in the straw) is common in summer/autumn for kids for school camps and holidays. But they usually have at least one area that is more of a farmhouse setting or small apartment...
Swiss holiday farms:
www.reka.ch
B&B:
www.homestay.ch
The other one I would suggest would be to check out the Youth Hostels. They usually have at least a few 'family' rooms, there's always heaps happening in the hostels - they have communal/shared kitchens and either cook for you or you can cook your own - easy to prepare a packed lunch and then go out for the day - and another plus is they are usually pretty well equipped with boardgames etc, if the weather is sour, and probably a nice big log fire...My kids love it because there is inevitably other kids or young people to play with...
These are 'budget' end options, though...really from there the sky is the limit...