Went to Ubon to get my wife and kids their Thai passports yesterday. Prior to leaving I Google the location of the office and from the info received established that it was near city hall in the old part of town close to the river......WRONG!
They have moved to the new city hall situated about 5 km out of town on the road to Yasothon. Can't miss it, big new building. The passport office is on the ground floor at the back of the building. Very quick and efficient service. They will send the passport to your home via EMS.

Stayed in the V Hotel, very new and clean Hotel with easy access. 850 baht p/n Deluxe room with breakfast.

Kind of funny how these architectural templates/styles spread all over the country.

You see similar houses so often.

It moved some time ago to the new location.

The best place to find the location of passport offices is here in Thai: http://www.consular.go.th/main/th/organize/21037-%E0%B8%AB%E0%B8%99%E0%B9%88%E0%B8%A7%E0%B8%A2%E0%B8%9A%E0%B8%A3%E0%B8%B4%E0%B8%81%E0%B8%B2%E0%B8%A3%E0%B8%AB%E0%B8%99%E0%B8%B1%E0%B8%87%E0%B8%AA%E0%B8%B7%E0%B8%AD%E0%B9%80%E0%B8%94%E0%B8%B4%E0%B8%99%E0%B8%97%E0%B8%B2%E0%B8%87.html

Moved about 18 months back. GPS 15.2770277777, 104.804416667