I talked to Brian Connolly Associates about planning a year or so ago and found them excellent. It was a simple enquiry over the phone and they followed up with all the detail I was looking for on email. I just found them helpful and knowledgeable.
As you probably know if your site is outside residentially zoned land you will have to meet local needs requirements to have any chance of getting planning permission for a one off house in a rural area.
If I remember right there are different rules for south v north Kildare.