If you have to come on here asking how much to offer on a house, then you haven't done enough research.
If you don't know about [broken link removed] and
www.irishpropertywatch.com then you are just not ready to leap into this holiday house buying situation.
Bear in mind rural houses would be following no particular pattern. You do need to go down there and kind ask around the locals. Pretend you are interested in buying the field beside the house or some such.
If I was buying a holiday house I figure the time to buy it would be in the depths of winter.
Also if you are both working full time, how much time will you reasonably spend in the holiday house -
it may actually work out cheaper to just rent a holiday house in the same area for 2 or three weeks each year instead??
I see we discussed whether or not you could afford this a few months back, did you get a mortgage for the new place even though your other house is in negative equity?