Dear Artur,

If by "formal dzongkha transliteration" you mean the literary spelling, in these cases the spellings used
correspond with those of choeke (chos skad), what we call Classical Tibetan:

1. Memorial Chorten (Thimphu): thim phu mchod rten

2. Trashigang Monastery: bkra shis sgang dgon pa (though Bhutanese usage often favors lha khang, "temple,"
instead of dgon pa)

3. Wangchukling Palace: dbang phyug gling pho brang

4. Chhukha Dzong: chu kha rdzong

hope this helps,
Matthew